The GE on the Source tray and EE on the target was cleaned. The target will be conditioned again to verify if sparking has been reduced. Torque 120 in lbs

Monday, September 16, 2013, 17:05: Roughing. The roughing pump is somewhat noisy.

Monday, September 16, 2013, 17:26: Starting turbos.

Monday, September 16, 2013, 17:34: Turbos at speed

Monday, September 16, 2013, 17:36: Vacuum at 3.8E-5 T.

Tuesday, September 17, 2013, 08:10: Opened cooling water. Vacuum stable at 6.5E-7. EE flow 4.8 l/min 27.9 C

Tuesday, September 17, 2013, 08:20: Target biased: 30kV, 15kV, -1kV.

Tuesday, September 17, 2013, 08:25: Opening gas line SV5 and Ne SV3 evacuated

Tuesday, September 17, 2013, 08:32: Started auto-ramping to 580A/230A

Tuesday, September 17, 2013, 08:34: Coil to 50A, Anode to 200V (0mA)

Tuesday, September 17, 2013, 08:36: Opened IV4

Tuesday, September 17, 2013, 10:39: EE flow 4.9 l/min 28.5 C

Tuesday, September 17, 2013, 13:05: EE flow 4.9 l/min 28.8 C

Tuesday, September 17, 2013, 15:03: EE flow 4.9 l/min 28.8 C

Tuesday, September 17, 2013, 15:04 :TGHT at 580A, TBHT at 280A.

Tuesday, September 17, 2013, 15:30: TBHT:RDCUR to 290A 

Wednesday, September 18, 2013, 08:07: Stared mass scan.

Wednesday, September 18, 2013, 08:08:EE flow 4.9 l/min 28.8 C

Wednesday, September 18, 2013, 09:14: EE to 2kV. Current at 676 uA

Wednesday, September 18, 2013, 09:23: Opened He gas to 6.0. It was later found the SV2 was closed. I.e. no He was supplied to the target.

Wednesday, September 18, 2013, 09:26: Tuning source. EE 0.8kV, EZL 1.3kV

Wednesday, September 18, 2013, 09:32: Started mass scan.

Wednesday, September 18, 2013, 09:55: A jump in BIAS current from 42 to 61 uA. Came down towards 42 after 30 min

Wednesday, September 18, 2013, 10:22: Ramping down heaters at 2A and 2.5A /min

Wednesday, September 18, 2013, 10:23: He and Ne off.

Wednesday, September 18, 2013, 10:48: Gas lines closed.

Wednesday, September 18, 2013, 10:53: EE flow 4.9 l/min 28.5 C

Wednesday, September 18, 2013, 10:55: IV4 closed.

Wednesday, September 18, 2013, 10:59: Target de-biased.

Wednesday, September 18, 2013, 12:18: Heaters off.

Wednesday, September 18, 2013, 12:18: Stopped turbos.

Wednesday, September 18, 2013, 12:56: Started wenting.

Wednesday, September 18, 2013, 13:02: EE flow 4.9 l/min 28.2 C

Wednesday, September 18, 2013, 13:20 : Chamber vented.

Wednesday, September 18, 2013, 16:18: Starting turbos

Wednesday, September 18, 2013, 16:26 : Turbos at speed

Wednesday, September 18, 2013, 16:28 : Vacuum at 2.8 E-5 T

Wednesday, September 25, 2013, 15:11
TGHT flow 5.52, temp 28.6
TBHT flow 5.92, temp 28.5

Thursday, September 26, 2013, 09:25: Stopped turbos. Vacuum at 1.4 E-7 T

Friday, September 27, 2013, 08:35
TGHT flow 5.49, temp 28.2
TBHT flow 5.90, temp 28.0

Friday, September 27, 2013, 10:47: Venting 

Monday, May 12, 2014, 14:14 : Roughing

Monday, May 12, 2014, 14:34: Starting turbos

Monday, May 12, 2014, 14:42 : Turbos at speed

Monday, May 12, 2014, 14:44 : Vacuum at  1.7E-5 T

Tuesday, May 13, 2014, 10:51: Opened water for HS circuit. Vacuum stable at 2.2E-7 T. Minor spike to 2.5E-7 T for 10 s.

Tuesday, May 13, 2014, 10:54: Roughing out gas lines.

Tuesday, May 13, 2014, 11:30: Opening SV5 and SV2 to evacuate gas lines completely.

Tuesday, May 13, 2014, 11:58: BIAS to 30kV, EZL to 13 kV. EE to 1.5 kV.

Tuesday, May 13, 2014, 11:59: Opening isolation valve

Tuesday, May 13, 2014, 12:12: Started heating to 450A / 200A TGHT / TBHT.

Target heating stopped at 167 A - likely caused by network problems. Multiple gaps in strip tool. Indicating lost network connection.

Wednesday, May 14, 2014, 10:07: Resuming heating to 450A / 200A TGHT / TBHT (EPICS 170A)

Wednesday, May 14, 2014, 10:12: De-biasing to investigate ANODE/CATHODE BIAS

Switched ON ANODE/CATHODE BIAS PS.

Wednesday, May 14, 2014, 10:22: BIAS to 30kV, EZL to 13 kV. EE to 1.5 kV.

Wednesday, May 14, 2014, 16:07: Continue heating TGHT to 500A

Wednesday, May 14, 2014, 16:33: TGHT at 500A. TBHT at 203 A.

Thursday, May 15, 2014, 14:57: Switched OFF/ON IOC to recover from white-out.

Thursday, May 15, 2014, 15:51: Started heating to 550A / 240A 

COIL to 50A
ANODE to 200V
TGHT to 580A
TBHT to 280A

Friday, May 16, 2014, 11:28  : Opening Ne

Friday, May 16, 2014, 11:56: TBHT to 290 A

Friday, May 16, 2014, 14:12: Started cool down. ANODE/CATHODE Bias requires reconfiguration.

Tuesday, May 20, 2014, 11:10: Ray and co is checking the configuration and troubleshooting the burnt off GND connection. The Test Stand will be configured to CATHODE negative BIAS.

Tuesday, May 20, 2014, 12:35: BIAS, EZL, EE, COIL, ANODE ON.

Tuesday, May 20, 2014, 12:35: Gas lines pumped.

Tuesday, May 20, 2014, 12:35: Auto heating to 240A/500A at 1A/2A /min.

Tuesday, May 20, 2014, 12:44: IV4 opened 

As per Friedhelm the conditioning settings are:

TGHT 580A

TBHT 290A

COIL 80A

ANODE 200V

Ramped up completed:

TGHT 580A/5.683V

TBHT 242A/2.295V (EPICS settings) and 289A/2.29V at the PS

COIL 80A

Current on the Anode = 13.431mA

HV and Heaters Conditioning for SiC#30 was completed Friday, May 23, 2014. The target was cooled down and it's ready for the on-line installation.

Aurelia Laxdal wrote:

HV and Heaters Conditioning for SiC#30 was completed Friday, May 23, 2014. The target was cooled down and it's ready for the on-line installation.

 Friday, June 13, 2014, 08:43: Turbos stopped. Vacuum at 1.2E-7 T

Monday, June 16, 2014, 08:26: Venting. Water purged.

Monday, June 16, 2014, 09:00: Target removed

Anders Mjos wrote:

Aurelia Laxdal wrote: HV and Heaters Conditioning for SiC#30 was completed Friday, May 23, 2014. The target was cooled down and it's ready for the on-line installation.  Friday, June 13, 2014, 08:43: Turbos stopped. Vacuum at 1.2E-7 T Monday, June 16, 2014, 08:26: Venting. Water purged. Monday, June 16, 2014, 09:00: Target removed

The target assembly did not pass the megger test between anode and heat shield after the previous conditioning. The AlN insulators were found to have failed during the conditioning. The coil insulation was burnt. AlN insulators and anode ware replaced.

Tuesday, June 17, 2014, 15:22: Roughing

By R.M.

Tuesday, June 17, 2014, 15:52: Turbos Started

Tuesday, June 17, 2014, 15:54: TP1B at speed

Tuesday, June 17, 2014, 15:57: IG1 Turned on  1.92e-05T

Tuesday, June 17, 2014, 15:59: TP1A at speed

Tuesday, June 17, 2014, 15:59: IG1 1.31e-05T

By AM

Wednesday, June 18, 2014, 08:24: Opened HS water circuit. Vacuum stable at 2.2E-7 T.

Wednesday, June 18, 2014, 08:40: Pumping on gas lines.

Wednesday, June 18, 2014, 08:49: Closed pump valve on gas lines.

Wednesday, June 18, 2014, 08:51: Opening TSH:SV5

Wednesday, June 18, 2014, 08:53: Opening TSH:SV2

Wednesday, June 18, 2014, 09:00: BIAS/ EZL / EE 30 / 13 / -1.5 kV

Wednesday, June 18, 2014, 09:04: Starting target heating to 500 / 240 A

Wednesday, June 18, 2014, 09:07: COIL to 50 A. ANODE to 200 V

Wednesday, June 18, 2014, 09:33: OPEN TPS:IV4 

Wednesday, June 18, 2014, 14:05: TBHT at 240 A 2.6 V. TGHT still ramping (403 A)

Wednesday, June 18, 2014, 15:03: TGHT at 500 A 4.5 V 

Thursday, June 19, 2014, 08:51: Ramping to 580 A / 265 A

Thursday, June 19, 2014, 09:37: Continue ramping TBHT to 290A

Thursday, June 19, 2014, 09:44: 8E-8 A on FC0

Thursday, June 19, 2014, 10:52: TBHT at 305A. Running mass scan.

Thursday, June 19, 2014, 11:36: Opening for He.

Thursday, June 19, 2014, 11:46: Opening for Ne.

Thursday, June 19, 2014, 11:54: Lowering TBHT to 300 A

Thursday, June 19, 2014, 13:01: Mass scan. ~1E-10 A Ne current on FC6 with Ne open.

Thursday, June 19, 2014, 15:06: Mass scan up.

Thursday, June 19, 2014, 16:00: Mass scan down.

Thursday, June 19, 2014, 16:49: Started cooling down target.

Friday, June 20, 2014, 08:53: Target de-biased. Turbos off.

Friday, June 20, 2014, 10:23: Venting. Purging water from  HS circuit.

Wednesday, October 07, 2015, 11:15: roughing

Wednesday, October 07, 2015, 12:09 Turbos started

Wednesday, October 07, 2015, 12:18: Turbos at speed. Vacuum at 1.7E-5 T

Thursday, October 08, 2015, 08:55: Pumping down gas lines.

Thursday, October 08, 2015, 09:09: Opened gas line

Thursday, October 08, 2015, 09:24: Opened HS water line. Vacuum stable at 3.3E-7 T. No response on RGA

Thursday, October 08, 2015, 09:32: PS on. Starting autoramping to 580/300 A at 2/1 A/min good/bad vacuum at 1E-6 and $E-6

Thursday, October 08, 2015, 09:41: BIAS/EZL/EE to 30/15/1.5 kV

Thursday, October 08, 2015, 09:42: COIL to 50 A ANODE to 200 V

ANODE developed a short Thursday evening. Target was cooled down and will be inspected.

Friday, October 09, 2015, 12:36: Stopped turbos.

Friday, October 09, 2015, 13:26: Venting

Target was pumped down on Friday.

Tuesday, October 13, 2015, 07:47: Opened water for HS. No response on RGA. Vacuum stable at 2.2E-7 T

Tuesday, October 13, 2015, 07:59: Gas lines open.

 Tuesday, October 13, 2015, 08:00: IV4 opened

Tuesday, October 13, 2015, 08:04: BIAS/EZL/EE to 30 / 15 1.5 kV

Tuesday, October 13, 2015, 08:04: ANODE 200 V, COIL 50 A

Tuesday, October 13, 2015, 08:04: Ramping up heaters

Short on ANODE/CATHODE again. Ramping down.

Tuesday, October 13, 2015, 15:22: Turbos stopped.

Tuesday, October 13, 2015, 16:05: Venting

Tuesday, October 13, 2015, 17:22: Roughing

Tuesday, October 13, 2015, 18:07: Started turbos.

Tuesday, October 13, 2015, 18:15: Turbos at speed. Vacuum at 1.9E-5 T

Wednesday, October 14, 2015, 07:55: Vacuum at 4.0E-7 T. Pumping on gas lines.

Wednesday, October 14, 2015, 08:00: Opened HS water. No response on vacuum or RGA.

Wednesday, October 14, 2015, 08:03: Ramping heaters to 580 / 300 A

Wednesday, October 14, 2015, 08:10: Opening gas lines.

Wednesday, October 14, 2015, 08:14: IV4 opened.

Wednesday, October 14, 2015, 16:00: RP2 replaced. See separate e-log entry.

Wednesday, October 14, 2015, 16:32: TBHT 305 A

Wednesday, October 14, 2015, 17:02: Opened He. - 5.6

Wednesday, October 14, 2015, 19:15: Started cool down of target.

Wednesday, October 14, 2015, 19:16 : Closed gas valves.

Thursday, October 15, 2015, 06:22: Source off. Stopped turbos. RGA off.

Thursday, October 15, 2015, 07:46: Venting

The bolt on the right side TGHT leg was difficult to remove. Se separate e-log entry

Friday, September 30, 2016, 10:00: Roughing.

Friday, September 30, 2016, 10:01: Roughing stopped. RP1 failure. Breaker tripped.

Friday, September 30, 2016, 11:49: Roughing continued.

Friday, September 30, 2016, 12:37: Turbos started -AM

Monday, October 03, 2016, 09:00: RGA on.

Monday, October 03, 2016, 09:05: Waterline opened. No response on RGA. Vacuum stable @1.70E-7T.

Monday, October 03, 2016, 09:20: Power/Sources on. Gas sources opened/closed.

Monday, October 03, 2016, 09:39: Optics switched on. Monitor TMS:SX2

Monday, October 03, 2016, 09:47: Anode on @ 200 V

Monday, October 03, 2016, 09:49: Coil on @ 50A

Monday, October 03, 2016, 09:50: IV4 opened.

Monday, October 03, 2016, 09:58: BIAS / EZL / EE @ 30 / 13 / 1.5 kV .

Monday, October 03, 2016, 10:08: Auto ramping TGHT / TBHT to 580 / 290 A @ 2A per min.

Monday, October 03, 2016, 10:12

 Device

Monday, October 03, 2016, 11:09: TMS:SX2 Fixed. No optics or sources affected.

Monday, October 03, 2016, 11:38: BIAS @ 30 kV. (Was actually set to 20 kV before). Ramping progress ok.

Monday, October 03, 2016, 15:56: TGHT / TBHT @ 580 / 290 A. RGA restarted.

Wednesday, October 05, 2016, 08:29: Optics found to be tripped : TMS:OCT4 , TMS:Q4 ,TMS:OCT3 ,TMS:SX3 ,TMS:Q3 ,TMS:SX2. Restarted

Wednesday, October 05, 2016, 09:20: Wire scanners reset. Emittance rig not reading properly.

Wednesday, October 05, 2016, 09:22: Auto ramping TBHT to 300 A @ 2A per min.

Thursday, October 06, 2016, 15:58: Auto-cooling TGHT / TBHT @ 2A per min.

Friday, October 07, 2016, 08:12: Source off - AM

Tuesday, October 11, 2016, 08:28: Turbos off. RGA off -AM

Tuesday, October 11, 2016, 13:38: Venting -AM

NOTE* : The right coil terminal terminates into the heat shield. DO NOT TURN ON COIL.

Friday, October 06, 2017, 12:12: Roughing. * Note on installation. Middle TBHT prong 'stuck' to insulator slightly and was moved to fit. Fit ok in Jig.

Friday, October 06, 2017, 13:53: Turbo pumps on.

Friday, October 06, 2017, 14:00: Ion gauge, RGA on.

Tuesday, October 10, 2017, 07:45: Waterlines opened. No response on RGA. Vacuum ok @ 1.35e-07T.

Tuesday, October 10, 2017, 07:49: RGA Fatal communications error. Restart RGA.

Tuesday, October 10, 2017, 07:57: Power/sources on.

Tuesday, October 10, 2017, 08:17: BIAS / EZL / EE @ 30 / 13 / 1.5 kV .

Tuesday, October 10, 2017, 08:57: BIAS / EZL / EE @ 0 kV. Power/sources off. Locked out*

Tuesday, October 10, 2017, 09:30:  Install/swap gas bottles. Elog.

Tuesday, October 10, 2017, 10:36: Power on. Gas bottles opened. Await vacuum stabilization.

Tuesday, October 10, 2017, 10:40: Sources on.

Tuesday, October 10, 2017, 10:50: BIAS / EZL / EE @ 30 / 13 / 1.5 kV .

Unable to bring Anode to voltage. Power supply was changed and does not 'Float'. Test TGHT & TBHT. Then switch from Cathode Negative Bias to Anode positive*.

Tuesday, October 10, 2017, 11:37: Auto ramping TGHT / TBHT to 20 / 20 A @ 4A per min. (TEST then cool)

Tuesday, October 10, 2017, 11:45: Auto-cooling

Tuesday, October 10, 2017, 11:57: Sources off / BIAS / EZL / EE @ 0 kV.

Wednesday, October 11, 2017, 10:25: Anode & PS switched*. Power/Sources on.

Wednesday, October 11, 2017, 10:38: BIAS / EZL / EE @ 30 / 13 / 1.5 kV.

Wednesday, October 11, 2017, 10:40: Coil @ 0 A. Anode 200 V / 7.326mA.

Wednesday, October 11, 2017, 10:45: Gas bottles opened. Await vacuum stabilization.

Wednesday, October 11, 2017, 10:47: IV4 Opened. Vacuum @ 2.43e-07T

Wednesday, October 11, 2017, 10:50: Auto ramping TGHT / TBHT to 580 / 290 A @ 2A per min.

 Wednesday, October 11, 2017, 14:21: Check. Vacuum @ 2.99e-06T. Outgassing.

Wednesday, October 11, 2017, 14:42: Note* Slight discrepancy on the TBHT. Direct read out off the PS @ 296A. Source page: TBHT set to 290.0A, shows 302.2A

Thursday, October 12, 2017, 09:00. Mass scans ok. Spark @ 8:57.

Thursday, October 12, 2017, 10:48: Auto ramping TBHT to 310 A @ 2A per min.

Friday, October 13, 2017, 07:15: Anode short determined. Plotted. Occurred around 18:00 (6pm) yesterday.

Friday, October 13, 2017, 07:20: Auto-cooling @ 4A per min

Friday, October 13, 2017, 10:03: Sources off. Gas lines closed.

Friday, October 13, 2017, 10:06: RGA off. IV4 Closed. Reset IV4

Friday, October 13, 2017, 10:08: Ion gauge off. Turbos off.

Friday, October 13, 2017, 11:10: Venting.

Friday, October 13, 2017, 11:45: power off. Waterlines purged.

Friday, October 13, 2017, 11:49: Doors open,

Previous short fixed. Grid clamp removed. Grid tack welded.

Friday, October 13, 2017, 15:49: Roughing.

By Anders

Friday, October 13, 2017, 16:10: TPs started

Friday, October 13, 2017, 16:20: Vacuum at 2.7E-7 T

Saturday, October 14, 2017, 06:37: Opened water supply to HS. 95/10 psi. Vacuum stable at 5.7E-7 T

Saturday, October 14, 2017, 06:42: Opened gas lines.

Saturday, October 14, 2017, 06:43: Started heater ramping to 580 / 290 A

Saturday, October 14, 2017, 06:45: BIAS/EZL/EE to 30 / 13.5 / 1.5 kV. EE current somewhat unstable around 500 uA - seems related to elevated BIAS current. Improving as BIAS current is gradually coming down.

Saturday, October 14, 2017, 15:19: TBHT to 310 A. Local readback 316 A

Sunday, October 15, 2017, 17:36 : Ramping down heaters.

Monday, October 16, 2017, 09:10: Sources off.

Monday, October 16, 2017, 09:13; IV4 Closed & Reset. FEBIAD Gas lines closed.

Monday, October 16, 2017, 09:15: RGA, Ion gauge, turbos off.

Monday, October 16, 2017, 10:40: Power off. Waterlines purged.

Monday, October 16, 2017, 10:43: Venting.

Friday. July 26th 2019 

A new electrical configuration of the test stand was decided and installed. The TGHT and TBHT were parallelized in order to deliver up to 600 + 600 Amperes to the p2n target.

Connections:

TGHT+: D

TGHT-: C

TBHT+: one cable to E and one cable to G (both going down to the coil terminal blocks, which are connected to the target terminal blocks through a copper short.

TBHT-: both cables to F. One 4/0 cable was run from F to H to achieve the same configuration as for TBHT+. The H terminal is connected to I (HV ground, conencted to the target copper heat shield) through a braided cable

One braided cable was connected from C to H so the target line should have the same potential as the TBHT/coil lines.

Saturday, July 27th

The current was ramped from the TBHT and TGHT in parallel up to 400+400=800A.

Sunday, July 28th

One leg of the target is glowing a bit, while the other doesn't. This suggests the current path is not straightforward as we planned.

Temperature measurements of the cables on top of the test stand were performed using a mini IR thermometer (FLUKE, borrowed from Arthur).

Temperature of the braided cable from C to H = ~50 °C --> This points to an imbalance of current between the two lines (TGHT and COIL lines). This might be alright.

Temperature of the braided cable from H to I = ~130 °C. This likely points to a short circuit between the target and the copper heat shield.

Monday, July 29th

In order to understand if the target is broken or touching the heat shield, we opened up the service cap.

- The braided cable from H to I was removed

- The braided cable from H to Q was disconnected

These two modifications were made so that the current cannot come back from the heat shield, but has to go through the target lines.

The 4/0 cables from the PS to the feedthroughs were removed so that we could confirm there is a short between C (target) and I(HV ground/heat shield). The 4/0 were than put back on the feedthrough connections.

Under advice of Dan Louie and Arthur, we did not change any configuration of the power supplies. We know that the current would go through the controls loop, but the impedance of this electronics should be high enough to sustain the current load.

At 3pm, the ramping was still increasing the current on the target, but one leg (the right one) was still glowing. By this time, the total current in the target assembly is ~500 amperes, so there should be no signs of any glowing happening. Probably there's something wrong with the target itself. We're opening up to check the status of the target.

Tuesday, July 30, 2019, 10:00: Venting. 

Tuesday, July 30, 2019, 10:03: Purging heat shield water loop. 

Tuesday, July 30, 2019, 11:46: P2N removed

The p2n target was taken out of the test stand for inspection. Comments and measurements on the container below:

- Initially, continuity measurements were mode between the target and heat shield (HS) while they were still in the test stand, and looks like they were shorted. However, after removing the HS from the test stand, no short was seen, not even after moving the target legs. Instead, we confirmed that the short was happening in the test stand, so some water lines were touching each other. 

- The target look in one piece, except for the ion source that came off right after manufacturing. (see picture)

- The insulator connecting the bottom section of the ion source central current lead, to the HS, was broken (see picture)

- The annular disc of the connecting the inner and outer tube of the ion source was bulging outwards, maybe the ion source was heating too much while we put current in it (see picture).

- The screw connecting the top part of the central ion source current lead, is now of a blue-ish color

Resistance measurementts:

- Copper to copper: 1008 microOhm

- Copper to bottom flexy leg: 101 microOhm

-  Bottom-to-top (flexy): 30-45 microOhm

- Target: 476 microOhm

- Copper to top flexy: 261 microOhm

- Copper to bottom flexy (left): 100 microOhm

- Copper to bottom flexy (right): 94 microOhm

- Top Flexy - botton target assy (left): 88 microOhm

From left to right:

- Cu to bottom flexy leg: 102

- Flexy bottom to flexy top: 31

- Flexy top left to flexy top right: 473

- Flexy top to flexy bottom: 0 (???)

- flexy bottom to Cu: 93

Friday, October 18, 2019, 14:58: Roughing.

Friday, October 18, 2019, 15:30: Turbo pumps on.

Friday, October 18, 2019, 15:35: Ion gauge on.

Friday, October 18, 2019, 15:39: RGA on.

Tuesday, October 22, 2019, 08:37: Restart RGA.

Tuesday, October 22, 2019, 08:39: Waterlines opened. No response on RGA. Vacuum stable @ 4.76e-07T.

Wednesday, October 23, 2019, 09:15: Calibrated He leak bottle installed on line labeled as "Neon"

Wednesday, October 23, 2019, 09:45: Do not start TS. Magnet PS water leak issue.Fault: 12797

FM

Monday, October 28, 2019, 09:10: Magnet leak repaired on Friday.  Checked by Anders. The polarity might need to be reversed.

Monday, October 28, 2019, 09:20: Vacuum gauges checked and reconnected ( see elog 765)

Monday, October 28, 2019, 09:28: RGA restarted.

FM

Tuesday, October 29, 2019, 9:00: Power/Sources on.

Tuesday, October 29, 2019, 10:29 :

Tuesday, October 29, 2019, 10:29: Gas lines opened

Tuesday, October 29, 2019, 10:45: BIAS/EZL/EE to 30 / 13 / 1.5 kV.

Tuesday, October 29, 2019, 10:56: Vacuum stable @ 7.28e-07T.

Tuesday, October 29, 2019, 10:54 : Auto-ramping TGHT / TBHT to 580 / 290 A @ 2A per min.

Tuesday, October 29, 2019, 11:01: IV4 open.

Tuesday, October 29, 2019, 11:01: Optics set to "old nominal" tunes.

Rick has provided new tunes that have been tested recently and show better beam quality. If times allows it I'll checked them again for this source

Tuesday, October 29, 2019, 14:02: Spark. Left monitor flickered.

Tuesday, October 29, 2019, 17:45: Mass scan @200V only showing surface ionized items. Either the anode is disconnected or the electron current is particularly low.

Wednesday, October 30, 2019, 09:10: TBHT tapped up to 310 A. No response on the anode leakage current,

Wednesday, October 30, 2019, 09:17 After talking with Anders, the system will be ramped down and switched to cathode bias.

Wednesday, October 30, 2019, 09:21: Auto-cooling to TGHT / TBHT to 0/ 0 @ 6A per min.

Wednesday, October 30, 2019, 11:04: : BIAS/EZL/EE to 0V

Wednesday, October 30, 2019, 14:50 Now on Cathode bias mode. See elog 766   

Wednesday, October 30, 2019, 14:53: Power/ Sources on.

Wednesday, October 30, 2019, 15:02: Gas lines open

Wednesday, October 30, 2019, 15:04: Optics set

Wednesday, October 30, 2019, 15:30: BIAS/EZL/EE to 30 / 13 / 1.5 kV.

Anode@200V. Coil@40A

Wednesday, October 30, 2019, 15:30: Auto-ramping TGHT / TBHT to 300 / 150 A @ 2A per min.

 Wednesday, October 30, 2019, 15:59: Auto-ramping aborted.

Wednesday, October 30, 2019, 16:00: Auto-ramping TGHT / TBHT to 300 / 150 A @ 4A per min.

FM

Thursday, October 31, 2019, 08:05: Auto-ramping TGHT / TBHT to 580/ 290A @ 4A per min.

Thursday, October 31, 2019, 08:54: TBHT at  set current and glowing but no leakage current on the anode.

Thursday, October 31, 2019, 08:56: Ramping aborted.

Thursday, October 31, 2019, 09:19: Manually tapping TBHT to 300 A. Still no leakage current.

Thursday, October 31, 2019, 09:08: Auto-cooling to TGHT / TBHT to 0/ 0 @ 8A per min.

Thursday, October 31, 2019, 09:35: BIAS/EZL/EE to 0V

Thursday, October 31, 2019, 10:16: Gas lines closed.

Thursday, October 31, 2019, 10:16: IV4 closed.

Thursday, October 31, 2019, 10:16: IG1 off.

Thursday, October 31, 2019, 10:17: RGA off.

Thursday, October 31, 2019, 10:17: Turbos off.

Thursday, October 31, 2019, 11:41 Venting

 Thursday, October 31, 2019, 11:41: HS waterline purged.

Thursday, October 31, 2019, 13:00: Inspecting the interior, 9 pin connector slightly de attached but now reattached (see elog 768)

Thursday, October 31, 2019, 13:07: Roughing

Thursday, October 31, 2019, 13:40: Turbos on

Thursday, October 31, 2019, 13:44: Gas lines open

Thursday, October 31, 2019, 13:47: IG1 on

Thursday, October 31, 2019, 13:48 RGA on.

Thursday, October 31, 2019, 16:09: Waterlines opened. No response on RGA. Vacuum stable @ 2.41e-06T.

Thursday, October 31, 2019, 16:15: Power/ sources on.

Thursday, October 31, 2019, 16:15  BIAS/EZL/EE to 30 / 13 / 1.5 kV.

Thursday, October 31, 2019, 16:16: Optics set

Thursday, October 31, 2019, 16:17

Thursday, October 31, 2019, 08:05: Auto-ramping TGHT / TBHT to 580/ 290A @ 4A per min.

Thursday, October 31, 2019, 16:17: IV4 open

Thursday, October 31, 2019, 17:27: Readback current is not displayed on EPICS. However, electron impact ionized species are present in the mass scan.

Thursday, October 31, 2019, 17:29: Auto-ramping aborted. TBHT/TGHT 290/292 A. Vacuum stable@2.32-6 T

 Friday, November 01, 2019, 08:35: Auto-ramping TGHT  to 580 A @ 4A per min. TBHT @ 290 A. - AS

Friday, November 01, 2019, 12:09: Auto-cooling to TGHT / TBHT to 0/ 0 @ 8A per min.

Friday, November 01, 2019, 13:13: Anode to 0V.

Friday, November 01, 2019, 13:13: Gas lines closed

Friday, November 01, 2019, 13:25 BIAS/EZL/EE to 0V

Friday, November 01, 2019, 13:26: IV4 closed

Friday, November 01, 2019, 13:32: Power / Sources off. Ion gauge & Turbo pumps off.

Friday, November 01, 2019, 14:36: Venting.

Reminder. Mini pump still linked to SV1. DO NOT OPEN SV2!!!

Monday, June 22, 2020, 08:45: Roughing.

Monday, June 22, 2020, 09:17: Turbo pumps on.

Monday, June 22, 2020, 09:22: Ion gauge on.

Tuesday, June 23, 2020, 07:37: Waterlines opened. Vacuum ok @ 1.60e-06T. Power / Sources on.

Tuesday, June 23, 2020, 07:45: Turned on "mini-pump" Open SV1.

Tuesday, June 23, 2020, 08:01: Open SV3 & SV4. (NOTE* Do not Open SV2).

Tuesday, June 23, 2020, 08:14: Close SV1. Turn off "Mini pump". Slowly open and close SV5. Unplug mini-pump.

Open w/ SV3 & SV4.

Tuesday, June 23, 2020, 08:16: SV5 left open w/ SV3 & SV4. Vacuum Stabilizing @ 2.32e-06T & dropping.

Tuesday, June 23, 2020, 08:20: Auto-ramping TGHT / TBHT to 300 / 150 A @ 4 A per min. Coil @ 20 A. IV4 open

Tuesday, June 23, 2020, 08:28: BIAS / EE / EZL @ 30 / -1.5 / 13 kV. Anode @ 50 V.

Tuesday, June 23, 2020, 08:29: Optics on.

Tuesday, June 23, 2020, 09:59: Auto-ramping TGHT / TBHT to 580 / 270 A @ 2 A per min.

Tuesday, June 23, 2020, 12:59: Coil @ 50 A. Anode @ 100 vV. Vacuum @ 3.71e-06T

Tuesday, June 23, 2020, 13:10: Auto-ramping TBHT to 280 A @ 2 A per min.

Tuesday, June 23, 2020, 13:36: Mass, wire, & Emittance scans taken.

 Reminder. Mini pump still linked to SV1. DO NOT OPEN SV2!!!

1. Optimize (tune) the beam to FC0 and then to FC6.
2. Compensate beam energy by substracting the value of anode voltage to the high voltage. Thursday, June 25, 2020, 16:07: FEBIAD is on cathode bias
   
3. Perform an efficiency measurement to know the correct work of the mini pump and also the time needed for 1 measurement.
4. Perform at least 3 efficiency measurements of the same configuration as a sanity check on the reproducibility of the measurements.

The system is prone to trip if the build-up pressure for the gas lines is higher than 7e-6T.  I will try to wait as long as reasonably possible to make sure the gas lines are pumped to good vacuum levels.

COVID-19 protocol: buddy is Marla Cervantes

New idea: Screenshot e-log on the ISAC TS team notebook: 20-06-26 FEBIAD development day  (Web view)

Thursday, June 25, 2020, 08:38:  TGHT / TBHT @ 580 / 280. Coil @ 0A. Vacuum @ 3.71e-06T. BIAS / EE / EZL @ 30 / -1.5 / 13 kV. Anode @ 100 V.

Thursday, June 25, 2020, 10:34: TP6 tripped. Closed IV4 closed and reset it. TP6 on

Thursday, June 25, 2020, 10:41:IV4 open

Thursday, June 25, 2020, 10:54: Optimizing beam to FC0 with current tune.

Thursday, June 25, 2020, 12:19: New values for TPS:Q1,Q2,Q3,Q4. Better beam shape on RMP0A and 0B

Thursday, June 25, 2020, 12:33: I think there is something wrong with this  FEBIAD as the mass scan does not show any peaks.

I've noticed the word document from Aaron, and he observed peaks likely from surface ionized species. Furthermore there is no anode current readback on epics nor on the power supply.

Possbile culprits. The anode is not well attached to the 9-pin. The cathode temperature is extremely low and there are no electron-impact ionized species.

 Thursday, June 25, 2020, 12:52: Power supply is on cathode bias mode as well as all the service cap wiring.

Thursday, June 25, 2020, 13:03:  Back to old tunes. Mass scan still showing only surfaced ionized species.

 Thursday, June 25, 2020, 14:30:  Mass scan for 0V finished. Peaks at 38 and 28 u. 38 is Potassium, but 28 is odd, closest surface ionized species might be Al27 with an ionization potential of about 5.8 eV.

Thursday, June 25, 2020, 15:20 : Mass scan for 100V finished. Peaks still at 38 and 28 but with different intensities. Now there are features  what seem to be 18 and 14. Water and N respectively.

Thursday, June 25, 2020, 15:03: Manually tap TBHT to 290 A.

Thursday, June 25, 2020, 15:31: FC6 signal increased. Anode leakage current still showing 0.0 mA.

Thursday, June 25, 2020, 15:35: Manually tap TBHT to 295 A

Thursday, June 25, 2020, 15:58: Mass scan completed. More peaks showed up.

Thursday, June 25, 2020, 15:35: Manually tap TBHT to 300A. Anode leakage current still showing 0.0 mA.

Thursday, June 25, 2020, 16:30: Manually tap TBHT to 305A. Anode leakage current still showing 0.0 mA.

Increasing Anode to 500 V, now there is a reading of 1.2mA. However, there were sparks on the high voltage so this current might be a leakage current from the high voltage.

Thursday, June 25, 2020, 16:34: Lowering to 300A to run a mass scan.

Thursday, June 25, 2020, 16:59: Similar mass spectrum, the anode current is meaningless.

Thursday, June 25, 2020, 17:00: Mass 28 will be used for efficiency measurements.

Thursday, June 25, 2020, 17:15: SV3 closed.

Thursday, June 25, 2020, 17:20: SV4 closed.

Thursday, June 25, 2020, 17:38: SV5 closed.

Thursday, June 25, 2020, 17:39: SV1 opened (mini pump)

Thursday, June 25, 2020, 17:41: Opening and closing SV3 and SV4.

Thursday, June 25, 2020, 17:45: Opening SV5. System tripped.

Thursday, June 25, 2020, 17:51: I will open the cage  to see if the mini pump is on.

Thursday, June 25, 2020, 17:58: The mini-pump was off and unplug. Now connected and running.

 Thursday, June 25, 2020, 18:00: SV1 open.

Thursday, June 25, 2020, 18:10: SV1 closed

Thursday, June 25, 2020, 18:10: SV5 open. Negligible response on IG1.

Thursday, June 25, 2020, 18:13: SV5 off. SV3 and SV4 open.

Thursday, June 25, 2020, 18:14: SV1 open.

Thursday, June 25, 2020, 18:17: SV1 closed.

Thursday, June 25, 2020, 18:17: SV5 open/close/open. Maximum vacuum 6e-6T. This is very closed to the hard-coded interlock. Everything is off, so it will be better to have the vacuum response at least near 4 or 5 e-6T.

Thursday, June 25, 2020, 18:26: SV3 closed.

Thursday, June 25, 2020, 18:31: SV4 closed.

Thursday, June 25, 2020, 18:41: SV5 closed. SV1 open. Wait 15 min

Thursday, June 25, 2020, 19:02: Vacuum response 5e-6.

Thursday, June 25, 2020, 19:02: Auto-ramping TGHT / TBHT to 580 / 290 A @ 2 A per min.

 The plan for today Friday, June 26, 2020 is:

1. Ramp up high voltage to operation values
2. Mass scan at nominal values
3. Send m=28 beam to FC6
4. Perform an efficiency measurement to know the correct work of the mini pump and also the time needed for 1 measurement.
5. Perform at least 3 efficiency measurements of the same configuration as a sanity check on the reproducibility of the measurements.

Friday, June 26, 2020, 11:31: BIAS/EZL/EE @ 30/13/1.5 kV. Anode @ 150 V

Friday, June 26, 2020, 11:58: Mass scan completed.

 Friday, June 26, 2020, 12:0: Magnet set to m=28. FC9=1.17e-9A. IG1=3.42e-6T

Friday, June 26, 2020, 12:17: SV3 closed.

Friday, June 26, 2020, 12:24: No effect on FC6 reading.

Friday, June 26, 2020, 12:24: SV4 closed.

Friday, June 26, 2020, 12:35: FC6=5.5e-10T and seems to  flatten.

Friday, June 26, 2020, 12:44: FC6=5.33e-10.

Friday, June 26, 2020, 12:45: SV5 closed. FC6=5.18e-10 and decreasing.

SV5 closes the gas line segment to the ion source. The response on the ion current indicates that once the leakage lines are closed, there is still some gas in the lines causing the slow decrease on ion current.

There is approximately a factor of 2 increase for m=28 when the argon is used.

Friday, June 26, 2020, 12:52: SV1 on.

Friday, June 26, 2020, 12:52: SV3 open/closed x5

Friday, June 26, 2020, 12:53: SV4 open/closed x5

Friday, June 26, 2020, 12:54: SV3 and SV4 opened.

Friday, June 26, 2020, 12:56: SV1 closed

Friday, June 26, 2020, 12:57: SV1 opened

Friday, June 26, 2020, 12:59 SV1 closed. SV5 open/closed x5

Friday, June 26, 2020, 13:00: SV5 opened.  No trip!!!

Ion current increases when the valve is open. This indicated the build up pressure being release into the ion source. Max FC6=4.17e-9 A. Now decreasing.

Friday, June 26, 2020, 13:07: FC6 reading and IG1 reading approaching values previous to efficiency measurement.

Friday, June 26, 2020, 13:13: FC6=1.17e-9A. IG1=3.47e-6.

Total time for 1 efficiency measurement 50 minutes. The largest wait occurs for the current to stabilize.

Approximately 30 minutes when closing the valves, 15 minutes when opening them, and 10 minutes for roughing the lines.

Friday, June 26, 2020, 13:30: Same measurement for (my) sanity check. FC6=1.16e-9. IG1=3.51e-6T

Friday, June 26, 2020, 13:30: SV3 closed.

Friday, June 26, 2020, 13:35: SV4 closed.

Friday, June 26, 2020, 13:50: SV5 closed.

Friday, June 26, 2020, 13:51: SV1 on. SV3 open/closed x5. SV4 open/closed x5.

Friday, June 26, 2020, 13:53: SV3 and SV4 opened.

Friday, June 26, 2020, 13:57: FC6=4.87e-10A. IG1=3.38e-6T.

Friday, June 26, 2020, 13:59: SV1 closed. SV5 open/closed x5.

Friday, June 26, 2020, 14:00: SV5 open. No trip!!!

Friday, June 26, 2020, 14:00: FC6=2.9e-9A. IG1=4.1e-6T. and decreasing.

Friday, June 26, 2020, 14:14: FC6=1.16e-9. IG1=3.56e-6T

Total time for eff measurement=45 minutes

Friday, June 26, 2020, 14:20: Last efficiency measurement for these values. Then lunch break.

Friday, June 26, 2020, 14:23: SV3 closed.

Friday, June 26, 2020, 14:29: SV4 closed.

 Friday, June 26, 2020, 14:42: SV5 closed.

Friday, June 26, 2020, 14:43: SV1 on. SV3 open/closed x5. SV4 open/closed x5.

Friday, June 26, 2020, 14:44: SV3 and SV4 opened

Friday, June 26, 2020, 14:49: FC6=4.71e-10. IG1=3.29e-6T.

 Friday, June 26, 2020, 14:51: SV1 closed. SV5 open/closed x5.

Friday, June 26, 2020, 14:52: SV5 open. No trip!!!

Friday, June 26, 2020, 14:52: FC6=3.2e-9A. IG1=4.13e-6T.

 Friday, June 26, 2020, 15:05: FC6=1.12e-9A. IG1=3.49e-6T.

Total time for eff measurement=43 minutes.

Friday, June 26, 2020, 15:33: By averaging all readings, the gas signal corresponds to 57.7% of the entire signal.  There is an increase factor of  2.36. No efficiency can be estimated as the signal is not from the gas bottle.

Friday, June 26, 2020, 15:43: Switching to mass 40 (Ar+1).

 Friday, June 26, 2020, 15:56: I think I am set on mass 40 (Ar+) The signal varies when  adjusting the voltage. Proceeding to efficiency measurement.

Friday, June 26, 2020, 15:59: FC6=2.49e-11. IG1=3.67e-6T

Friday, June 26, 2020, 16:00: SV3 closed.

Friday, June 26, 2020, 16:05: SV4 closed.

Friday, June 26, 2020, 16:20 : SV5 closed.

Friday, June 26, 2020, 16:20 : SV1 on. SV3 open/closed x5. SV4 open/closed x5.

Friday, June 26, 2020, 16:21 : SV3 and SV4 opened.

Friday, June 26, 2020, 16:21 : FC6=1.06e-11A. IG1=3.40e-6T

Friday, June 26, 2020, 16:24 : SV1 closed. SV5 open/closed x5.

Friday, June 26, 2020, 16:24 : SV5 open. No trip!!!

Friday, June 26, 2020, 16:25  FC6=3.7e-11. IG1=4.30e-6T

Friday, June 26, 2020, 16:28: The proportion between gas signal and background is 57.4% of the entire signal. Very similar result to  previous mass. There is also an increase factor of 2.35 for Ar+1

Friday, June 26, 2020, 16:37: FC6=2.44e-11. IG1=3.58e-6

Friday, June 26, 2020, 16:43: Coil=20 A. This provides the smallest ion current signal FC6=1.13e-11.

Friday, June 26, 2020, 16:49: FC6=1.13e-11. IG1=3.58e-6T.

Friday, June 26, 2020, 16:50: SV3 closed.

Friday, June 26, 2020, 16:54 :SV4 closed.

Friday, June 26, 2020, 17:09 :SV5 closed.

Friday, June 26, 2020, 17:10 :SV1 on. SV3 open/closed x5. SV4 open/closed x5.

Friday, June 26, 2020, 17:10 :SV3 and SV4 opened.

Friday, June 26, 2020, 17:10 :FC6=1.51e-12A. IG1=3.38e-6T

The proportion of this measurement is 86.63%.

Friday, June 26, 2020, 17:12 :SV1 closed. SV5 open/closed x5.

Friday, June 26, 2020, 17:12 :SV5 open. No trip!!!.

Friday, June 26, 2020, 17:22 :  FC6=3.7e-11. IG1=4.30e-6T

 Friday, June 26, 2020, 17:24:  FC6 reading keeps decreasing and it's already below the initial current.

I suspect that the ion current that was read when the coil was changed corresponds to superposition of previously ionized species and the coil adjusted those charges. Once flushed, the neutral atoms will established a new equilibrium.

NOTE: Will setting the anode to 0 V flushed the source? Test it tomorrow.

Friday, June 26, 2020, 17:43: FC6 signal is increasing. I'll leave it as is.

Saturday, June 27, 2020, 11:47: FC6=1.06e-11A. IG1=3.40e-6T. Similar to the value of the current prior to the efficiency measurement.

 The plan for today Saturday, June 27, 2020 is:

1. Perform an efficiency for coil 20. This might be a long measurement if the value has to increases again. If after 1.5 h the signal still shows a mismatch, then I'll try to flush the source by setting the anode to 0V
2. Redo efficiency measurement.
3. Try another coil value.

Saturday, June 27, 2020, 11:52: FC6=1.06e-11. IG1=3.40e-6T

Saturday, June 27, 2020, 11:55: SV3 closed.

Saturday, June 27, 2020, 12:03 : SV4 closed.

Saturday, June 27, 2020, 12:20 : SV5 closed.

Saturday, June 27, 2020, 12:20: SV1 on. SV3 open/closed x5. SV4 open/closed x5.

Saturday, June 27, 2020, 12:21 : SV3 and SV4 opened.

Saturday, June 27, 2020, 12:23 : FC6=6.76e-12A. IG1=3.14e-6T

Saturday, June 27, 2020, 12:26 : SV1 closed. SV5 open/closed x5.

Saturday, June 27, 2020, 12:27 : SV5 open. No trip!!!

Saturday, June 27, 2020, 12:42: FC6=1.01e-11A. IG1=3.38e-6T.

Saturday, June 27, 2020, 12:48Coil to 0, then to 20A. Anode voltage to 0V then to 150V. FC6=1.05e-11A.

Saturday, June 27, 2020, 12:50: SV3 closed.

Saturday, June 27, 2020, 12:55 : SV4 closed.

Saturday, June 27, 2020, 13:01: SV5 closed

Saturday, June 27, 2020, 13:01 : SV1 on. SV3 open/closed x5. SV4 open/closed x5.

Saturday, June 27, 2020, 13:02: SV5 closed.

Saturday, June 27, 2020, 13:04: TSG:CB1 and TPS:VCB3 tripped. now on

Saturday, June 27, 2020, 13:04: FC6=6.64e-12A. IG1=3.23e-6T.

Saturday, June 27, 2020, 13:05:  SV1 closed. SV5 open/closed x5.

Saturday, June 27, 2020, 13:07: SV5 open. No trip!!!

Saturday, June 27, 2020, 13:13: FC6=1.03e-11A. IG1=3.38e-6T.

Saturday, June 27, 2020, 13:15: Now I will sweep the coil from  0 to 20. Then run the efficiency measurement again.

Saturday, June 27, 2020, 13:22: Coil=15A provides the minimum current but I will stay with 20 A.

Saturday, June 27, 2020, 13:23 : SV3 closed

Saturday, June 27, 2020, 13:28 : SV4 closed.

Saturday, June 27, 2020, 13:37: SV5 closed.

Saturday, June 27, 2020, 13:42: FC6=6.60e-12A. IG1=3.23e-6T.

By averaging all the readings for coil 20. The proportion of current coming from the gas is only 36%. There is an increase factor of 1.56 compared to the no gas situation.

Saturday, June 27, 2020, 13:49: SV1 on. SV3 open/closed x5. SV4 open/closed x5.

Saturday, June 27, 2020, 13:51: SV1 closed. SV5 open/closed x5.

Saturday, June 27, 2020, 13:52: SV5 open. No trip!!!

Saturday, June 27, 2020, 14:08 : FC6=1.00e-11A. IG1=3.38e-6T.

Saturday, June 27, 2020, 14:10: Coil=40A. This values gives a similar current as coil=0A.

Saturday, June 27, 2020, 14:11: FC6=2.65e-11A. IG1=3.38e-6T.

Saturday, June 27, 2020, 14:19: SV3 closed.

Saturday, June 27, 2020, 14:26: FC6=2.45e-11.

Saturday, June 27, 2020, 14:27:SV4 closed.

Lunch break.

Saturday, June 27, 2020, 15:23: IG1=9.65e-12. IG1=3.20e-6T.

Saturday, June 27, 2020, 15:24: SV5 closed.

Saturday, June 27, 2020, 15:33: SV1 on. SV3 open/closed x5. SV4 open/closed x5.

Saturday, June 27, 2020, 15:34: SV3 and SV4 opened.

Saturday, June 27, 2020, 15:55: SV1 closed. SV5 open/closed x5.

Saturday, June 27, 2020, 15:56: SV5 open. No trip!!!

Saturday, June 27, 2020, 16:14: FC6=1.95e-11A. IG1=3.40e-6T.

Again, the base current with all the gas is note the same as prior to the effciciency measurment.

Saturday, June 27, 2020, 16:15 : Anode to 0V.

Saturday, June 27, 2020, 16:16 Anode=150 V. FC6=2.01e-11A.

Saturday, June 27, 2020, 16:18:Coil=0A.

Saturday, June 27, 2020, 16:19 Coil=40A. FC6=1.98e-11A.

Saturday, June 27, 2020, 16:20 Coil to 0. Anode to 0.

Saturday, June 27, 2020, 16:20 Anode=150V, coil=40A.

Saturday, June 27, 2020, 16:22: FC6=1.97e-11

Saturday, June 27, 2020, 16:32: Coil to 0. Anode to 0.

Saturday, June 27, 2020, 16:33: Coil=40A. Anode 150V.

Saturday, June 27, 2020, 16:34:FC6=1.97e-11A.

Saturday, June 27, 2020, 16:36: SV3 closed.

Saturday, June 27, 2020, 16:43: SV4 closed.

Saturday, June 27, 2020, 16:50: SV5 closed.

Saturday, June 27, 2020, 16:51: SV1 on. SV3 open/closed x5. SV4 open/closed x5.

Saturday, June 27, 2020, 16:52 :SV3 and SV4 opened.

Saturday, June 27, 2020, 16:55: FC6=7.64e-12. IG1=3.31e-6

Saturday, June 27, 2020, 16:56 : SV1 closed. SV5 open/closed x5.

Saturday, June 27, 2020, 16:57 : SV5 open. No trip!!!

 Saturday, June 27, 2020, 17:1: FC6=1.91e-11A

 What's FC6 value for coil=0?

Saturday, June 27, 2020, 17:17: Coil=0

 Saturday, June 27, 2020, 17:18: FC6=2.71e-11A.

Now coil=55A gives a similar current as coil=0... Back to coil=40A.

Saturday, June 27, 2020, 17:53: SV3 closed.

Saturday, June 27, 2020, 17:58: SV4 closed.

 Saturday, June 27, 2020, 18:07: SV5 closed.

FC6=7.47e-12A. IG1=3.23e-6T.

Saturday, June 27, 2020, 18:07 : The second set of measurements for coil=40. The proportion of current coming from the gas is 59.94%. There is an increase factor of  2.50 compared to the no gas situation.

Saturday, June 27, 2020, 18:07: SV1 on. SV3 open/closed x5. SV4 open/closed x5.

Saturday, June 27, 2020, 18:08: SV3 and SV4 opened.

Saturday, June 27, 2020, 18:18: SV1 closed. SV5 open/closed x5.

Saturday, June 27, 2020, 18:18 : SV5 open. No trip!!!

 Saturday, June 27, 2020, 18:4: FC6=1.84e-11. IG1=3.38e-6T.

 Saturday, June 27, 2020, 18:4: Done for today.

Sunday, June 28, 2020, 14:38: FC6=1.62e-11A. IG1=3.30e-6T.

 The plan for today Sunday, June 28, 2020 is:

1. Perform an efficiency  measurement for coil=65A.
2. Coil sweep with all gas lines closed.

 Sunday, June 28, 2020, 14:50: Coil=65A. Provides highest current. For coil<100A.

Sunday, June 28, 2020, 14:59: FC6=2.16e-11A. IG1=3.31e-6T.

Sunday, June 28, 2020, 15:08: SV3 closed.

Sunday, June 28, 2020, 15:13:FC6=1.94e-11.A.

Sunday, June 28, 2020, 15:14. SV4 closed.

Sunday, June 28, 2020, 15:30:SV5 closed.

Sunday, June 28, 2020, 15:30: FC6=3.82e-12A. IG1=3.14e-8T.

Sunday, June 28, 2020, 15:32: SV1 on. SV3 open/closed x5. SV4 open/closed x5.

Sunday, June 28, 2020, 15:32: SV3 and SV4 opened.

Sunday, June 28, 2020, 15:37:FC6=3.22e-12A. IG1=3.14e-6T.

Sunday, June 28, 2020, 15:38: SV1 closed. SV5 open/closed x5.

Sunday, June 28, 2020, 15:38: SV5 open. No trip!!!

Sunday, June 28, 2020, 15:55: FC6=1.79e-11A. IG1=3.31e-6T.

Sunday, June 28, 2020, 16:02: SV3 closed.

Sunday, June 28, 2020, 16:08: SV4 closed.

Sunday, June 28, 2020, 16:22: SV5 closed.

Sunday, June 28, 2020, 16:22: 3.31e-12A. IG1=3.05e-6T.

Sunday, June 28, 2020, 16:23: SV1 on. SV3 open/closed x5. SV4 open/closed x5.

Sunday, June 28, 2020, 16:24: SV3 and SV4 opened.

Sunday, June 28, 2020, 16:25: SV1 closed. SV5 open/closed x5.

Sunday, June 28, 2020, 16:25: SV5 open. No trip!!!

Sunday, June 28, 2020, 16:37: 1.82e-11. IG1=3.23-8T.

Sunday, June 28, 2020, 16:51:SV5 closed.

Sunday, June 28, 2020, 16:51:SV3 and SV4 closed.

Sunday, June 28, 2020, 17:25: Coil sweep finished .

Sunday, June 28, 2020, 17:26: SV1 on. SV3 open/closed x5. SV4 open/closed x5.

Sunday, June 28, 2020, 17:27: SV3 and SV4 opened.

Sunday, June 28, 2020, 17:28: SV1 closed. SV5 open/closed x5.

Sunday, June 28, 2020, 17:28 :SV5 open. No trip!!!

Sunday, June 28, 2020, 17:29: Coil=0A.

Sunday, June 28, 2020, 17:33: Done for the day.

 Reminder. Mini pump still linked to SV1. DO NOT OPEN SV2!!!

The plan for today Wednesday, July 01, 2020 () is:

1. Coil sweep with gas lines opened.
2. Coil sweep with gas lines closed
3. Coil sweep with gas lines opened.
4. Efficiency measurements at highest and lowest FC6 signal
5. Mass scan.

COVID-19 protocol: buddy is Marla Cervantes

New idea: Screenshot e-log on the ISAC TS team notebook: 20-07-01 FEBIAD development part 2  (Web view)

Wednesday, July 01, 2020, 11:50: FC6=6.89e-12A. IG1=2.76e-6T.

FC6 has dropped 60% and the vacuum 15% with the respect to the last set of measurements.

Maybe the mass is not Ar+ but K? Or the decrease in pressure has this large correlation to FC6 magnitude.

Wednesday, July 01, 2020, 12:41: Coil sweep up and down completed.

Wednesday, July 01, 2020, 12:47: SV3, SV4, and SV5 close

IG1=2.59e-6T. The gas bottles are definitely running out, as there is no much change in pressure whether they are opened or closed

Wednesday, July 01, 2020, 13:15: Coil sweep completed.

Wednesday, July 01, 2020, 13:22: FC6 and IG1 increasing. Probably due to the coil still at 90A. reducing coil current.

Wednesday, July 01, 2020, 13:29: SV1 open. SV3 open/closed x5. SV4 open/closed x5.

Wednesday, July 01, 2020, 13:31: SV3 and SV4 open.

Wednesday, July 01, 2020, 13:32: SV1 closed. SV5 open/closed x5.

Wednesday, July 01, 2020, 13:33 SV5 open. No trip!!!

Wednesday, July 01, 2020, 14:30: Coil=0A.

Wednesday, July 01, 2020, 14:34 : SV3 closed.

Wednesday, July 01, 2020, 14:37:SV4 closed.

Coffee break.

Wednesday, July 01, 2020, 14:54: FC6~~9.76E-13A. IG1= 2.44e-6T

Wednesday, July 01, 2020, 15:11:SV1 open.  SV3 open/closed x5. SV4 open/closed x5.

Wednesday, July 01, 2020, 15:13:  SV3 and SV4 open.

Wednesday, July 01, 2020, 15:30: SV1 closed. SV5 open/closed x5.

Wednesday, July 01, 2020, 15:30: SV5 open. No trip!!!

Wednesday, July 01, 2020, 15:52: Coil=90A. FC6=1.41e-11A . IG1=2.68e-6T.

Wednesday, July 01, 2020, 15:57: FC6=1.16e-11A. IG1=2.68E-6T.

Wednesday, July 01, 2020, 15:58: SV3 closed.

Wednesday, July 01, 2020, 16:03: SV4 closed.

Wednesday, July 01, 2020, 16:07: 4.95e-12A. IG1=2.77e-6T.

Pressure increasing.

Wednesday, July 01, 2020, 16:14:SV1 open. FC6 decreasing momentarily, now increasing again due to the pressure increase.

Wednesday, July 01, 2020, 16:15: SV3 open/closed x5. SV4 open/closed x5.

IG1=3.1e-6T. FC6=6.00e-12A. Seems table now.

Wednesday, July 01, 2020, 16:17: SV3 and SV4 open.

Wednesday, July 01, 2020, 16:20: SV1 closed. SV5 open/closed x5.

Wednesday, July 01, 2020, 16:20: SV5 open. No trip!!!

 Wednesday, July 01, 2020, 16:44: FC6=1.12e-11A. IG1=3.14e-6T.

Wednesday, July 01, 2020, 17:40: Mass scan completed. Peaks are really bad resolved.

Wednesday, July 01, 2020, 17:43;FC0 in. Coil=0A.

Wednesday, July 01, 2020, 17:43: Done for the day

1. Increase cathode current to 310A.
2. Anode voltage sweep.
3. Mass scan at nominal values.
4. Coil sweep with gases
5. Efficiency measurement at highest coil current.
6. Coil sweep without gas.
7. Mass scan without gas.

 Thursday, July 02, 2020, 08:03: IG1=2.68e-6T. Vacuum decreased overnight, reading on FC0 decreased as well.

Thursday, July 02, 2020, 08:11: Auto-ramp TBHT to 310A @ 2A/min 

 Thursday, July 02, 2020, 09:15: FC0 increasing

Thursday, July 02, 2020, 10:30: FC0 seems to be stable now on 5.51e-9A. 

Thursday, July 02, 2020, 11:10: Mass scan completed.

 Thursday, July 02, 2020, 11:26: Mass=40.

Thursday, July 02, 2020, 13:47: Coil sweep completed.

Thursday, July 02, 2020, 13:48: Coil=90A. FC6=1.35e-10A. IG1=2.76e-6T.

Thursday, July 02, 2020, 13:49: SV3 closed.

Thursday, July 02, 2020, 13:52: SV4 closed.

Thursday, July 02, 2020, 14:00: SV5 closed.

Thursday, July 02, 2020, 14:02:  FC6=5.80e-11A. IG1=2.59e-6T.

Thursday, July 02, 2020, 14:08 : SV1 open.  SV3 open/closed x5. SV4 open/closed x5.

Thursday, July 02, 2020, 14:09:  SV3 and SV4 open.

Thursday, July 02, 2020, 14:11: SV1 closed. SV5 open/closed x5.

Thursday, July 02, 2020, 14:11: SV5 open. No trip!!!

Thursday, July 02, 2020, 14:30: FC6=1.40e-10A. IG1=2.96e-6T.

Thursday, July 02, 2020, 14:32: SV3 closed.

Thursday, July 02, 2020, 14:35 : SV4 closed.

Thursday, July 02, 2020, 14:50 : SV5 closed.

Thursday, July 02, 2020, 15:28:  FC6=3.34e-11A. IG1=2.59e-6T.

Thursday, July 02, 2020, 16:05: Coil sweep without gases finished.

 Thursday, July 02, 2020, 16:35: Mass scan finished.

Thursday, July 02, 2020, 16:51: Coil=90A.

Thursday, July 02, 2020, 17:07: Mass scan completed.

Thursday, July 02, 2020, 17:07 : SV1 open.  SV3 open/closed x5. SV4 open/closed x5.

Thursday, July 02, 2020, 17:09:  SV3 and SV4 open.

Thursday, July 02, 2020, 17:10: SV1 closed. SV5 open/closed x5.

The mini-pump line was open for a moment while SV5 was opened, there was no trip but this might have added air into the system.

Thursday, July 02, 2020, 17:13: SV5 open. No trip!!!

Thursday, July 02, 2020, 17:21: FC6=4.10e-11A. IG1=2.76e-6T.

Thursday, July 02, 2020, 17:38: Mass scan completed.

Thursday, July 02, 2020, 17:40: Coil=0A.

Thursday, July 02, 2020, 17:56: Mass scan finished.

Thursday, July 02, 2020, 17:57: Done for the day.

1. Emittance scans at difference coil values.

Friday, July 03, 2020, 11:45: Coil=0. Mass=40u

Friday, July 03, 2020, 11:45: FC6=4.12e-11A. IG1=2.72e-6T.

Friday, July 03, 2020, 12:13: Coil=0. Mass=28u. FC6=7.88e-10A. IG1=2.74e-6T.

 Friday, July 03, 2020, 12:25: Test Stand tripped and the lights around flicker. EPICS whiteout. Even turbos shut off.

Friday, July 03, 2020, 12:27: Called control room and they told that there were a couple of power bumps.

Friday, July 03, 2020, 12:41: EPICS restarted but still whiteout problem similar to e-log 702. Likely to submit a faulty report

Friday, July 03, 2020, 12:57: PLC restarted, EPICS workings.

Friday, July 03, 2020, 12:58: Turbos at speed.

Friday, July 03, 2020, 13:25: Source/Optics on.

Friday, July 03, 2020, 13:36: BIAS/EZL/EE @ 30/13/1.5 kV.

Friday, July 03, 2020, 13:39: IG1=2.15e-6T.

Friday, July 03, 2020, 13:41: Auto-ramping TGHT/TBHT to 400/200A @ 2A/min for the weekend.

Friday, July 03, 2020, 13:44: Done for the day. To continue on Monday.

Reminder. Mini pump still linked to SV1. DO NOT OPEN SV2!!!

1. Ramp up TGHT/TBH to 580/315 A.
2. Anode sweep
3. Mass scan without gas.
4. Coil sweep without gas
5. Gases in.
6. Mass scan with gases
7. Coil sweep with gasses
8. Efficiency measurements at highest and lowest FC6 current

COVID-19 protocol: buddy is Marla Cervantes

New idea: Screenshot e-log on the ISAC TS team notebook: 20-07-06 FEBIAD development part 3  (Web view)

Monday, July 06, 2020, 05:27: Auto-ramping TGHT/TBHT to 580/315 @ 2 A/min.

 Monday, July 06, 2020, 14:2: IV4 open.

Monday, July 06, 2020, 14:41: Anode sweep completed. No anode current registered.

Monday, July 06, 2020, 14:42:  HV spark. Anode current now show something. 13.431 mA. The source current however did not change after the spark.

Monday, July 06, 2020, 15:08: Anode sweep completed.

Monday, July 06, 2020, 15:19: IG1=2.57e-6T. 

Monday, July 06, 2020, 15:43: Mass scan completed.

Monday, July 06, 2020, 16:02: Coil sweep completed.

Monday, July 06, 2020, 16:04: FC6=8.40e-11A. IG1=2.59e-6T.

Monday, July 06, 2020, 16:07: SV1 closed. SV3 and SV4 open/closed x5.

Monday, July 06, 2020, 16:10: SV3 and SV4 open.

Monday, July 06, 2020, 16:12: SV1 closed. SV5 open/closed x5.

Monday, July 06, 2020, 16:13: SV5 open. No trip!!!

Monday, July 06, 2020, 16:25: FC6=1.16e-10A. IG1=2.74e-6T.

Monday, July 06, 2020, 16:33: Closing gas lines to prevent more leakage.

Tomorrow I will move to mass 40, to see if the ionization changes with the small gas load.

Monday, July 06, 2020, 16:36: Done for the day.

1. Gases in.
2. Mass scan with gases
3. Coil sweep with gasses
4. Efficiency measurements at highest and lowest FC6 current

Tuesday, July 07, 2020, 13:38:FC6=4.46e-11A. IG1=2.41e-6T.

SV3 and SV4 open/closed x5.  SV1 open.

Tuesday, July 07, 2020, 13:40: SV3 and SV4 open.

Tuesday, July 07, 2020, 13:41: SV1 closed. SV5 open/closed x5.

SV5 open. No trip!!!

Tuesday, July 07, 2020, 13:57: FC6=8.46e-11A. IG1=2.59e-6T.

Tuesday, July 07, 2020, 14:15: Mass scan completed.

Tuesday, July 07, 2020, 14:22: mass=39.82. A slight bump between the potassiums 38 and 41.

Tuesday, July 07, 2020, 14:38: Coil sweep completed.

Coil=0A. FC6=1.18e-11A. IG1=2.59e-6T.

Tuesday, July 07, 2020, 14:39: SV3 closed.

Tuesday, July 07, 2020, 14:47: FC6=1.26e-11A. IG1=2.59e-6T.

Tuesday, July 07, 2020, 14:48: SV4 closed.

Tuesday, July 07, 2020, 14:59: 1.15e-11A. IG1=2.41e-6T.

Tuesday, July 07, 2020, 15:00: SV5 closed.

Tuesday, July 07, 2020, 15:07: FC6=1.15e-11A. IG1=2.41e-6T.

Tuesday, July 07, 2020, 15:08: SV3 and SV4 open/closed x5. SV1 open.

Tuesday, July 07, 2020, 15:09: SV3 and SV4 open. SV1 closed.

Tuesday, July 07, 2020, 15:10:  SV5 open/closed x5. SV5 open. No trip!!!

Tuesday, July 07, 2020, 15:2: FC6=1.26e-11A. IG1=2.59e-6T.

Tuesday, July 07, 2020, 15:32: SV3 closed.

Tuesday, July 07, 2020, 15:44: FC6=1.4e-11A. IG1=2.57e-6T

Tuesday, July 07, 2020, 15:44: SV4 closed.

Tuesday, July 07, 2020, 16:01: FC6=1.15e-11A. IG1=2.39e-6T.

Tuesday, July 07, 2020, 16:01: SV5 closed.

 Tuesday, July 07, 2020, 16:31: Coil sweep with no gas completed.

Tuesday, July 07, 2020, 16:52: Mass scan completed.

Tuesday, July 07, 2020, 16:52: Done for the day.

1. Ramp up TBHT to 580/320 A.
2. Anode sweep
3. Mass scan without gas.
4. Coil sweep without gas
5. Gases in.
6. Mass scan with gases
7. Coil sweep with gasses
8. Efficiency measurements at highest FC6 current
9. Coil sweep without gas

Wednesday, July 08, 2020, 15:00: IG1=2.41e-6T.

 Wednesday, July 08, 2020, 15:29: Auto-ramping TBHT to 320A @ 2A/min.

Wednesday, July 08, 2020, 15:54: Anode sweep completed.

Wednesday, July 08, 2020, 16:33: Mass scan completed

Wednesday, July 08, 2020, 16:56: Coil completed.

Wednesday, July 08, 2020, 16:57. IG1=2.59e-6T. FC6=8.63e-11A.

Wednesday, July 08, 2020, 16:58: SV3 and SV4 open/closed x5. SV1 open.

Wednesday, July 08, 2020, 16:59: SV3 and SV4 open. SV1 closed.

Wednesday, July 08, 2020, 17:01: SV5 open/closed x5. SV5 open. No trip!!!

Wednesday, July 08, 2020, 17:12: FC6=9.20e-12A. IG1=2.65e-6T.

Wednesday, July 08, 2020, 17:44: Mass scan completed.

FC6=8.61e-12A. IG1=2.65e-6T.

Wednesday, July 08, 2020, 18:14: Coil sweep completed.

FC6=5.52e-11A. IG1=2.68e-6T.

Wednesday, July 08, 2020, 18:19: SV3 closed.

Wednesday, July 08, 2020, 18:25: FC6=6.8e-11A. IG1=2.65e-6T

Wednesday, July 08, 2020, 18:25: SV4 closed.

Wednesday, July 08, 2020, 18:39 : FC6=1.70e-11A. IG1=2.59e-6T.

Wednesday, July 08, 2020, 18:40 : SV5 closed.

Wednesday, July 08, 2020, 19:08: FC6=1.32e-11A. IG1=2.59e-6T.

Wednesday, July 08, 2020, 19:12: Sudden TBHT current increase of approx 2A. TBHT voltage seem to have droped a little 0.02V.

Wednesday, July 08, 2020, 19:14: Coil=0A. I'll wait until IG1 reading stabilizes.

Wednesday, July 08, 2020, 19:31: FC6=8.09e-12. IG1=2.48e-6T.

Wednesday, July 08, 2020, 19:31: TBHT returned to values  pior to sudden jump.

Wednesday, July 08, 2020, 19:58: Coil sweep with no gas completed.

Wednesday, July 08, 2020, 19:58: Done for the day.

1. Ramp down TBHT to 580/290 A.
2. Anode sweep
3. Coil sweep without gas
4. Gases in.
5. Coil sweep with gases
6. Ramp down test stand

Thursday, July 09, 2020, 09:53: Manually tap down TBHT to 290A @ ~~2A/min 

Thursday, July 09, 2020, 11:02: Anode sweep completed.

Thursday, July 09, 2020, 13:15: Coil=0A. IG1=2.24e-6T. FC0=2.48e-10A. FC6=7.43e-12A.

Thursday, July 09, 2020, 14:15: SV3 and SV4 open/closed x5. SV1 open.

Thursday, July 09, 2020, 14:16: SV3 and SV4 open. SV1 closed.

Thursday, July 09, 2020, 14:17 : SV5 open/closed x5. SV5 open. No trip!!!

Thursday, July 09, 2020, 14:31: FC6=3.03e-11A. IG1=2.50e-6T.

Thursday, July 09, 2020, 14:54: Coil sweep completed.

Thursday, July 09, 2020, 15:16: Anode=0 V.

Thursday, July 09, 2020, 15:16: SV3, SV4, SV5 closed

Thursday, July 09, 2020, 15:18: IV4 closed. timeout, reset it

Thursday, July 09, 2020, 15:20: BIAS/EZL/EE 0 kV.

Thursday, July 09, 2020, 15:21: Auto-cooling 2 A/min

Thursday, July 09, 2020, 15:25: Done for the day.

Monday, July 13, 2020, 07:01: Ion gauge & Turbo pumps off. Noted HV cage is already removed & PS locked out.