Thursday, April 21, 2016, 14:25: Begin pumping down.

Thursday, April 21, 2016, 15:02: Turbo pumps started.

Thursday, April 21, 2016, 15:34: Ion gauge on.

Thursday, April 21, 2016, 15:43: RGA on

Friday, April 22, 2016, 08:30: Opened water  supply for heat shield. Vacuum stable at 2.4E-7 T. No response on RGA.

Friday, April 22, 2016, 08:44: Anode breaker switched on. While off, a charge was measured via TSH:ANODE:RDCUR.

Monday, April 25, 2016, 08:08: Noticed Turbo pump 1 shut down around roughly 4 pm Sunday afternoon. Will attempt restart.

Monday, April 25, 2016, 08:15: Interlocks bypassed for TP1, Pump Restarted.

Monday, April 25, 2016, 08:23: TP1 @ speed. Vacuum recovered to 1.9E-7 T

 Monday, April 25, 2016, 08:41: IV4 opened. Auto ramping TGHT/TBHT to 400A/150A @ 2A/min.

Monday, April 25, 2016, 08:42: Turned on optics. BIAS/EZL/EE to 30/13/1.5kV

Monday, April 25, 2016, 13:40: Mass scan (test)

Monday, April 25, 2016, 14:04: Ramp down TGHT to 350A @ 2A/min.

Tuesday, April 26, 2016, 08:10: Auto ramping TGHT/TBHT to 580A/220A @ 2A/min.

Tuesday, April 26, 2016, 14:10: Auto ramping TBHT to 230A @ 2A/min.

Tuesday, April 26, 2016, 14:10: Ramp Down TBHT to 220A @ 2A/min.

Wednesday, April 27, 2016, 07:55: Auto ramp down TGHT/TBHT @ 2A/min to 0A.

Wednesday, April 27, 2016, 12:56: Ramp down Complete. Sources and optics off. IV4 Closed

Thursday, April 28, 2016, 08:52

Monday, May 02, 2016, 13:32: Ion gauge off. Turbo pumps off.

Monday, May 02, 2016, 15:03: Water supply closed.

Monday, May 02, 2016, 15:11: Venting

Monday, June 27, 2016, 12:05: Roughing.

Monday, June 27, 2016, 13:08: Turbo pumps on.

Monday, June 27, 2016, 13:15: Ion Gauge on.

Monday, June 27, 2016, 13:27: RGA on.

Tuesday, June 28, 2016, 08:20: Water, power/sources on. Vacuum stable at 2.2E-7 T. No response on RGA.

Tuesday, June 28, 2016, 08:33: Auto ramping TGHT/TBHT @ 2A/1A min to 580A/200A.

Tuesday, June 28, 2016, 08:35: Turned on optics. BIAS/EZL/EE to 30/13/1.5kV

Tuesday, June 28, 2016, 08:47:

Tuesday, June 28, 2016, 11:17: Restarted RGA program (after crash) -AM

Tuesday, June 28, 2016, 15:46:

Wednesday, June 29, 2016, 08:21: Restarted RGA (crashed).

Wednesday, June 29, 2016, 08:22:

Wednesday, June 29, 2016, 09:5: Ramping TBHT to 220 A

Wednesday, June 29, 2016, 11:06: EE to 2.0kV

Wednesday, June 29, 2016, 11:16: Auto cooling TGHT/TBHT @ 3A/1.5A min.

Wednesday, June 29, 2016, 13:45: Sources BIAS/EZL/EE off. TBHT @ 0A & TGHT @ 134.5A

Wednesday, June 29, 2016, 15:31:

 Wednesday, June 29, 2016, 15:39: Water lines purged.

Wednesday, August 03, 2016, 13:47: Roughing

Wednesday, August 03, 2016, 14:17: Turbo pumps started.

Wednesday, August 03, 2016, 14:22: Ion gauge on.

Thursday, August 04, 2016, 08:17: Water lines opened. No response on RGA. Vacuum stable @ 2.96E-7T

Thursday, August 04, 2016, 08:20: Power/Sources on.

Thursday, August 04, 2016, 08:30: BIAS/EZL/EE @ 30/ 13/ 1.5 kV .

Thursday, August 04, 2016, 08:35: IV4 open. Auto ramping TGHT/TBHT to 580/200 A @ 2A/1A per min.

Thursday, August 04, 2016, 15:06:

Device

Friday, August 05, 2016, 10:12: RGA lost connection. Restarting.

Friday, August 05, 2016, 13:25: Graham Waters contacted. Constant voltage on emittance rig power supply. 10V? Spark from a while ago? Unable to scan.

Friday, August 05, 2016, 14:13: Auto cooling TGHT/TBHT  @ 2A/1A per min.

Friday, August 05, 2016, 16:02: BIAS/ EZL/ EE @ 0/ 0/ 0 kV. Cooling continued.

Monday, August 08, 2016, 08:22 : RGA off. IV4 Closed.

Monday, August 08, 2016, 08:23: Turbo pumps off.

Monday, August 08, 2016, 08:26: Waterlines purged. Power off.

Monday, August 08, 2016, 09:27: Venting.

Friday, June 30, 2017, 13:48: Roughing.

Friday, June 30, 2017, 14:26: Turbo pumps on.

Friday, June 30, 2017, 14:31: Ion gauge on.

Tuesday, July 04, 2017, 07:47: Waterlines opened. No response on RGA. Vacuum @1.35e-07T.

Tuesday, July 04, 2017, 07:51: Power/sources on.

Tuesday, July 04, 2017, 08:01: BIAS / EZL / EE @ 20 / 13 / 1.5 kV .

Tuesday, July 04, 2017, 08:02: IV4 Opened.

***Halted to bring in spare target for Ta#52.***

Thursday, July 06, 2017, 09:20: Power/sources off

Thursday, July 06, 2017, 09:24: IV4 closed. Timeout error. Fixed. RGA off

Thursday, July 06, 2017, 09:27: Waterlines purged.

Thursday, July 06, 2017, 09:29: Ion gauge off. Turbos off.

Thursday, July 06, 2017, 13:14: Venting.

***Halted to bring in spare target for Ta#52.***

Monday, July 10, 2017, 14:03: Roughing.

Monday, July 10, 2017, 14:27: Turbo pumps started.

Monday, July 10, 2017, 14:33: Ion gauge on.

Monday, July 10, 2017, 14:36: RGA on. 

Tuesday, July 11, 2017, 06:52: Waterlines opened. No response on RGA. Vacuum ok @ 2.18e-07T

Tuesday, July 11, 2017, 06:56: Power/sources on.

Tuesday, July 11, 2017, 07:03: BIAS / EZL / EE @ 30 / 13 / 1.5 kV .

Tuesday, July 11, 2017, 07:04: IV4 Opened.

Tuesday, July 11, 2017, 07:10: Auto ramping TGHT / TBHT to 580 / 200 A @ 2A per min.

Tuesday, July 11, 2017, 10:10: RGA error (Spark?). Restarted.

Tuesday, July 11, 2017, 15:08: Anode brought up to 5, 10 15, and 50 V using FEBIAD controls. No Current detected.

Wednesday, July 12, 2017, 08:23:

Wednesday, July 12, 2017, 14:42: Auto-cooling.

Friday, July 14, 2017, 12:13: Sources off. IV4 Closed (Reset)

Monday, July 17, 2017, 07:55: Power off.

Monday, July 17, 2017, 07:57: Waterlines purged.

Monday, July 17, 2017, 07:59: RGA off. Ion gauge & Turbos off.

Monday, July 17, 2017, 09:43: Venting.

 Target Test (Fully Cleaned vs Crystal Clean only).

For all tests:

-Start Turbo pumps & Ion gauge as soon as available on ISAC TEST STAND VACUUM Screen.

- Ensure previous test turbos are off by 8:15 and started venting by 9:15am to meet timeline.

-Start Roughing by 10:10am +/- 1 minute.

-TGHT / TBHT ramping starts @ 8:30am. 2A per min to 580A / 200A

ALL START TIMES MUST BE CONSISTENT.

***Pre-outgassed*** Heat Shield W.O# 42738-1: Includes insulators, new Al grounded 9-pin, bracket, & gripper arms. Blank/Plate. No source cup/EE.

HP-SIS Target # 42218-8: Crystal Clean only.

Monday, July 24, 2017, 09:46: HS removed from test stand. Exchange target.

Monday, July 24, 2017, 10:08: Target # 42218-8 placed into test stand. Door open for 22 minutes.

Monday, July 24, 2017, 10:10: Roughing.

Monday, July 24, 2017, 10:10: Doors sealed for roughing.

Monday, July 24, 2017, 10:11: BV1B OPEN. Opened @ 306T.

Monday, July 24, 2017, 10:29: Both Turbo pumps started.

Monday, July 24, 2017, 10:34: Ion gauge on. TP1B @ speed 42 KRPM.

Monday, July 24, 2017, 10:38: TP1A @ speed 38 KRPM.

Monday, July 24, 2017, 10:40: RGA on. Vacuum @ 1.51E-05T.

Monday, July 24, 2017, 15:03: Vacuum @ 6.14e-07T

Tuesday, July 25, 2017, 08:02: Water lines opened. No response on RGA. Vacuum stable @ 1.97E-07T.

Tuesday, July 25, 2017, 08:05: Power/Sources on.

Tuesday, July 25, 2017, 08:23: Anode increased to 5, 10, 25, 50 V. Ok @ 0.000mA

Tuesday, July 25, 2017, 08:30: Auto ramping TGHT / TBHT to 580 / 200 A @ 2A per min.

Tuesday, July 25, 2017, 09:00: Open back power supply panel. Using multimeter, 9-pin ground connection verified. Panel closed.

10:45: Check. Vacuum @ 2E-06T.

11:45: Check. Vacuum @ 3.33E-07T.

13:30: Check. Vacuum @ 2.78E-07T.

Tuesday, July 25, 2017, 14:27: Open back power supply panel. Using multimeter, 9-pin ground connection verified. Panel closed

Wednesday, July 26, 2017, 08:15: Check. Vacuum @ 2.60E-07T.

 Wednesday, July 26, 2017, 15:00: Auto-Cooling @ 2A per min. Check. Vacuum @ @2.43e-07T

Thursday, July 27, 2017, 07:20: Check. Vacuum @ 1.44e-07T

Thursday, July 27, 2017, 07:22: Power/sources off.

Thursday, July 27, 2017, 07:24: Waterlines purged.

Thursday, July 27, 2017, 07:26: RGA off.

Thursday, July 27, 2017, 07:27: Ion gauge, Turbos off

Thursday, July 27, 2017, 09:13: Venting.

 Target Test (Fully Cleaned vs Crystal Clean only).

For all tests:

-Start Turbo pumps & Ion gauge as soon as available on ISAC TEST STAND VACUUM Screen.

- Ensure previous test turbos are off by 8:15 and started venting by 9:15am to meet timeline.

-Start Roughing by 10:10am +/- 1 minute.

-TGHT / TBHT ramping starts @ 8:30am. 2A per min to 580A / 200A

ALL START TIMES MUST BE CONSISTENT.

***Pre-outgassed*** Heat Shield W.O# 42738-1: Includes insulators, new Al grounded 9-pin, bracket, & gripper arms. Blank/Plate. No source cup/EE.

HP-SIS Target # 42218-10: Full Clean. Crystal Clear, Acetone, & Methanol used.

Thursday, July 27, 2017, 09:49: HS removed from test stand. Exchange target.

Thursday, July 27, 2017, 10:07: Target # 42218-10 placed into test stand. Door open for 20 minutes.

Thursday, July 27, 2017, 10:10: Roughing.

Thursday, July 27, 2017, 10:10: Doors sealed for roughing.

Thursday, July 27, 2017, 10:13 BV1B OPEN. Opened @ 230T.

Thursday, July 27, 2017, 10:29: Both Turbo pumps started.

Thursday, July 27, 2017, 10:34: Ion gauge on. TP1B @ speed 42 KRPM.

Thursday, July 27, 2017, 10:37: TP1A @ speed 38 KRPM.

Thursday, July 27, 2017, 10:40: RGA on. Vacuum @ 1.42T.

Thursday, July 27, 2017,15:00: Check. Vacuum @ 5.51e-07T.

Thursday, July 27, 2017, 15:02: Waterlines opened. No response on RGA. Vacuum @ 5.42e-07T

Thursday, July 27, 2017, 15:05: Power on.

Friday, July 28, 2017, 08:30: Ramping started

Monday, July 31, 2017, 07:56: Ramping down

Monday, July 31, 2017, 14:25: Power supplies off. RGA off.

Tuesday, August 15, 2017, 06:48: Ion gauge, Turbo pumps off.

Tuesday, August 15, 2017, 06:50: power off. Waterlines purged.

Tuesday, August 15, 2017, 07:55: Venting.

Wednesday, September 20, 2017, 14:08: Roughing.

Wednesday, September 20, 2017, 14:28: Turbos on.

Wednesday, September 20, 2017, 14:33: Ion gauge on.

Wednesday, September 20, 2017, 14:39: RGA on.

Thursday, September 21, 2017, 08:43: Waterlines opened. No response on RGA. Vacuum ok @ 1.7e-07T

Thursday, September 21, 2017, 08:49: Power/sources on.

Thursday, September 21, 2017, 09:03: BIAS / EZL / EE @ 30 / 13 / 1.5 kV .

Thursday, September 21, 2017, 09:04: IV4 Opened.

Thursday, September 21, 2017, 09:08: Auto ramping TGHT / TBHT to 580 / 200 A @ 2A per min.

Friday, September 22, 2017, 13:42: Bias / EZL increased to 40 / 17.3 kV. Tune accordingly.

Mass scan ok

Friday, September 22, 2017, 14:33: Bias / EZL decreased to 30 / 13 kV. Tune accordingly.

Friday, September 22, 2017, 14:39: Auto-cooling @ 2A / min

Monday, September 25, 2017, 10:20: BIAS / EZL / EE @ 0 V.

Monday, September 25, 2017, 10:21:Power/sources off.

Monday, September 25, 2017, 10:32: RGA off. IV4 closed

Monday, September 25, 2017, 10:33: Ion gauge, turbos off.

Monday, September 25, 2017, 10:37: Waterlines purged.

Monday, September 25, 2017, 13:19: Venting.

Friday, March 16, 2018, 08:42: Roughing.

Friday, March 16, 2018, 10:34: Turbo pumps started.

Friday, March 16, 2018, 10:40: Ion gauge on.

Friday, March 16, 2018, 10:45: RGA on.

Friday, March 16, 2018, 13:10: Check. Vacuum @ 7.37e-7T

Monday, March 19, 2018, 06:44: Waterlines opened: Vacuum stable @ 2.16e-07T

Monday, March 19, 2018, 06:46: Power/sources on.

Monday, March 19, 2018, 06:49: IV4 Opened.

Monday, March 19, 2018, 06:51: Auto ramping TGHT / TBHT to 580 / 200 A @ 2A per min.

Monday, March 19, 2018, 06:57: BIAS / EZL / EE @ 30 / 13 / 1.5 kV .

Monday, March 19, 2018, 07:02: Optics on & reset.

Monday, March 19, 2018, 10:53: Drops in BIAS voltage from 30kV to below 22.5 kV and spikes to the BIAS current (282 uA) observed. Unstable.

Monday, March 19, 2018, 12:56: Communications issue noted with the mass separator magnet. Increase in Amp achieves no change in Gauss. Kyle L notified.

TMS:HALLMB1:RDFIELD Communication error. 

Monday, March 19, 2018, 14:00: MB1 Communication error fixed. However the negative voltage on Q2 & Q5 in unavailable. 

Monday, March 19, 2018, 15:07: Auto cooling TGHT / TBHT to 500 / 150 A @ 6A/4A per min.

Monday, March 19, 2018, 15:17: Auto cooling halted. TGHT / TBHT @ 501 / 152 A. Manually put to 500 / 150 A.

Controller for TMS:Q5 & TMS:Q2 off for repair.

Tuesday, March 20, 2018, 09:09: Auto ramping TGHT / TBHT to 580 / 200 A @ 2A per min.

Tuesday, March 20, 2018, 12:58: The controller was fixed. Nb#08 conditioning continues with tests.

Wednesday, March 21, 2018, 06:24: Auto-cooling @ 2A per min.

Wednesday, March 21, 2018, 11:23: Sources at 0. Off.

Wednesday, March 21, 2018, 11:29: Power off. Waterlines purged.

Wednesday, March 21, 2018, 11:32: RGA off. IV4 closed/reset.

Wednesday, March 21, 2018, 11:33: Ion gauge off. Turbos off.

Wednesday, March 21, 2018, 13:15: Venting.

Tuesday, July 03, 2018, 12:44: Roughing

Tuesday, July 03, 2018, 13:32: Turbo pumps started.

Tuesday, July 03, 2018, 13:38: Ion gauge on.

Wednesday, July 04, 2018, 06:57: Waterlines opened. Vacuum ok @ 1.08e-06T. No response on RGA.

Wednesday, July 04, 2018, 06:59: Power/sources on

Wednesday, July 04, 2018, 07:00: Vacuum not yet low enough to begin ramping.

Wednesday, July 04, 2018, 07:10: BIAS / EZL / EE @ 30 / 13 / 1.5 kV .

Thursday, July 05, 2018, 06:29: Note* TMS:IG6 has higher than usual vacuum @ 9.22e-07T. Typically below 6.0e-07T.

Thursday, July 05, 2018, 06:30:  Auto ramping TGHT / TBHT to 580 / 200 A @ 2A per min.

Thursday, July 05, 2018, 06:31: IV4 opened.

Thursday, July 05, 2018, 06:35: Optics set.

Thursday, July 05, 2018, 11:23: Auto ramping  TBHT to 230 A @ 2A per min.

Thursday, July 05, 2018, 11:34: Auto ramp aborted on TBHT @ 221 A. Read back is at 230.3 A.

 Thursday, July 05, 2018, 14:32: RGA froze. Restart

Friday, July 06, 2018, 08:24: Spark noted. RGA restarted.

Friday, July 06, 2018, 14:05: Auto-cooling @ 2A/min

Monday, July 09, 2018, 07:50: Power/sources brought to 0. Turned off.

Monday, July 09, 2018, 07:52: RGA off. IV4 closed (reset).

Monday, July 09, 2018, 07:56: Ion gauge, Turbo pumps off.

Monday, July 09, 2018, 07:58: Waterlines purged.

Monday, July 09, 2018, 09:19: Venting. 

The HP-SIS uses the older center block. No serial number found. 

Loaded with Tantalum. Rough Target description:

Comment on the bag - 0.9 cm space

Total Ta foils = 525

Foil Thickness = 0.025mm (assumed)

Target density =  ?

Target length = 7.3 cm

Total Mass =  ?

Total mass w/ Target oven=  1242 g.

Assembly voltage checks - OK. Note* Spacers between insulator & Target.

Thermocouple wires attach to the 9-pin connector.

 Wednesday, June 26, 2019, 14:47: roughing.

Wednesday, June 26, 2019, 15:30: Turbos on.

Wednesday, June 26, 2019, 15:51: IG1 on. Vacuum @ 1.14e-4 T.

Thursday, June 27, 2019, 07:11: Waterlines opened. No response on RGA. Vacuum stable @ 3.49e-06T.

Thursday, June 27, 2019, 07:14: Power / sources switched on. Omega switched on to read thermocouples.

Thermocouple readings:

T1 - 24.8 C & T2 - 24.9 C.

Thursday, June 27, 2019, 07:16:

Thursday, June 27, 2019, 12:43: Auto-ramping TGHT / TBHT to 350 / 125 A @ 2 A per min

Friday, June 28, 2019, 07:02: HV on, IV4 opened.

Friday, June 28, 2019, 07:09: BIAS / EE / EZL @ 30 / -1.5 / 13 kV.

Friday, June 28, 2019, 07:10: Auto-ramping TGHT / TBHT to 580 / 230 A @ 2 A per min.

Friday, June 28, 2019, 07:12: Spark*

Friday, June 28, 2019, 07:15: Optics on. Some instability noticed on the BIAS.

Friday, June 28, 2019, 07:17:

Thermocouple readings:

T1 - 106.7 C & T2 - 106.8 C.

Friday, June 28, 2019, 07:24: Halt auto ramping. TGHT / TBHT @ 375 / 150 A. BIAS / EE / EZL @ 0 kV. Unusual amount of sparks and instability. 

Friday, June 28, 2019, 08:45: BIAS / EE / EZL @ 30 / -1.5 / 13 kV. Sparks seen immediately.

The TBHT insulator on the source tray side is glowing blue. Very neat.

Sparks observed striking inside the vacuum on the thermocouples / heat shield from the TBHT.

Friday, June 28, 2019, 08:57: BIAS / EE / EZL @ 0 kV. Auto-cooling @ 4 A per  min.

Friday, June 28, 2019, 10:45: Disconnect mini pump, connect OMEGA thermometer to ground.

Friday, June 28, 2019, 10:59: BIAS / EE / EZL @ 30 / -1.5 / 13 kV. No sparks.

Friday, June 28, 2019, 11:03: manually bump up TGHT / TBHT to 50 A.

Friday, June 28, 2019, 11:05: Auto-ramping TGHT / TBHT to 250 / 150 A @ 4 A per min.

Friday, June 28, 2019, 11:39: Spark*

Friday, June 28, 2019, 11:57: Auto-ramping TGHT / TBHT to 500 / 200 A @ 4 A per min.

Friday, June 28, 2019, 12:15: TGHT / TBHT @ 322 / 200 A. Sparking*

Friday, June 28, 2019, 12:17: Halt auto-ramping. Sparking*. Manually bring down current.

Friday, June 28, 2019, 12:23: Sparks ceased. TGHT / TBHT @ 300 / 150 A

Friday, June 28, 2019, 12:24: BIAS / EE / EZL @ 0 kV. Auto-cooling @ 4 A per  min.

Friday, June 28, 2019, 12:32: new video taken. After reviewing the video, the spark originates at the heat shield / thermocouples and moves to the TBHT insulator.

Friday, June 28, 2019, 15:26: Auto-ramping TGHT / TBHT to 200/ 100A @ 4 A per min.

Tuesday, July 02, 2019, 07:58: RGA restarted.

Tuesday, July 02, 2019, 08:07: BIAS / EE / EZL @ 30 / -1.5 / 13 kV. No sparks. Vacuum @ 7.08e-07T.

Tuesday, July 02, 2019, 08:08: Auto-ramping TGHT / TBHT to 350 / 150 A @ 4 A per min.

Tuesday, July 02, 2019, 08:37: Halt auto ramp. TGHT / TBHT @ 310 / 150 A. Two sparks*. Vacuum @ 2.32e-06T. Allow to stabilize.

Tuesday, July 02, 2019, 08:55: Auto-ramping TGHT to 350 A @ 4 A per min. Vacuum @ 1.08e-06T.

Tuesday, July 02, 2019, 09:05: TGHT @ 350 A. Vacuum @ 1.08e-06T

Tuesday, July 02, 2019, 09:07: Spark*

Tuesday, July 02, 2019, 09:16: Spark*

Tuesday, July 02, 2019, 09:24: Spark*

Tuesday, July 02, 2019, 09:38: Auto-cooling @ 4 A per  min.

Tuesday, July 02, 2019, 09:45: BIAS / EE / EZL @ 0 kV.

Tuesday, July 02, 2019, 11:39: IG1 off. Turbos off. RGA off

Tuesday, March 17, 2020, 11:37: Roughing.

FS# 3 re-connected. All waterlines re-opened except FS#5 (HS cooling).

Tuesday, March 17, 2020, 12:08: Turbo pumps on.

Tuesday, March 17, 2020, 12:13: IG1 on.

Wednesday, March 18, 2020, 04:31: Waterlines open. Vacuum ok @ 8.45e-07T.

Wednesday, March 18, 2020, 04:37: HV rack / 9-pin grounded.

Wednesday, March 18, 2020, 04:40: Power / Sources on.

Wednesday, March 18, 2020, 04:43: Auto-ramping TGHT / TBHT to 350 / 150 A @ 2 A per min.

Wednesday, March 18, 2020, 04:51: BIAS / EE / EZL @ 30 / -1.5 / 12.5 kV.

Wednesday, March 18, 2020, 04:52: Optics on / set. IV4 open.

Wednesday, March 18, 2020, 07:45: Fluctuation noticed on BIAS. No audible sparks. Conditioning.

Wednesday, March 18, 2020, 07:47: Auto-ramping TGHT / TBHT to 580 / 230 A @ 2 A per min.

Wednesday, March 18, 2020, 09:44: EZL Increased to 13 kV.

Wednesday, March 18, 2020, 09:51: Reset MB1 manually. Ok.

Wednesday, March 18, 2020, 10:57: Mass, wire, & emittance scans complete.

Thursday, March 19, 2020, 11:41: Auto-cooling @ 1 A per min.

Thursday, March 19, 2020, 11:46: BIAS / EE / EZL @ 0 kV.

Monday, March 23, 2020, 05:15: IV4 closed / reset. 

Monday, March 23, 2020, 05:17: Power / sources off.

 The electrical feedthroughs at the top of the test stand module were reconfigured to deliver up to 1200A to the p2n target.

1) The two COIL lines (one + and one -) were disconnected from their terminals E and F

2) The TBHT terminals (two + and two -) were disconnected from A and B

3) The two TBHT positive terminals are connected to E and G respectively. The two TBHT negative terminals are both connected to F, and a 4/0 cable is run from F to H

4) The three TGHT + terminals are left connected to D. The three TGHT - terminals are left connected to C

In the vacuum chamber, COIL and TGHT terminals of the same polarity are shorted by means of thick copper bars specifically machined to match the test stand terminals geometry. The test can proceed by ramping both TGHT and TBHT up to 600 A each, possible at the same time and speed.

The wiring diagram is shown in the attached picture 

Extech measurements before heating (µOhm):

TGHT Left leg Ta-Cu: 205, 215, 212, 201.

TGHT Right leg Ta-Cu: 287, 295, 275, 292.

TGHT Ta legs: 596, 606, 597, 598.

TBHT A: 1470, 1471.

TBHT B: 1469, 1469.

Wednesday, July 22, 2020, 16:21

Rampup finished around 2PM, looks good. Around 300+300A the TBHT voltage limit prevented the TBHT current to increase, and instead it decreased. Aaron ramped it down, adjusted the voltage limit and proceeded without issues.

The water flow and temperatures looked fine.

Attached the plots and a picture at 1200A

 Thursday, July 23, 2020, 11:53

Frank Song checked for us the status of the test stand. Pictures looked good, despite the reflections, I can't see sign of the flexy legs glowing. Thank you Frank!

The voltage on the TGHT has dropped 0.02 V, and the voltage on the TBHT (COIL lines) has dropped by 0.04V in 20 hours. I think it's negligible, just a sign of some sintering.

The cooling parameters are as follows:

Input 1: 28.05 C

Input 2: 8.49 lpm

Input 3: 27.79 C

Input 4: 11.14 lpm

Input 5: 27.72 C

Input 6: 3.90 lpm

Input 7: 27.78 C

Input 8: 7.79 lpm

Friday, July 24, 2020, 16:42

This morning I saw the target for my first time and not in a picture. I could see a mild glow in the center of both flexy legs, while the external foils seemed cold. This seems really good, as expected!

Water parameters were checked:

Input 1: 27.75 C

Input 2: 8.38 lpm

Input 3: 27.52 C

Input 4: 11.13 lpm

Input 5: 27.37 C

Input 6: 3.93 lpm

Input 7: 27.53 C

Input 8: 7.78 lpm 

Monday, July 27, 2020, 09:35

Aaron's measurement from today at 7:30am

 Input 1: 26.61 C

Input 2:  8.25 lpm

Input 3: 26.35 C

Input 4: 11.19 lpm

Input 5: 26.21 C

Input 6: 3.84 lpm

Input 7: 26.35 C

Input 8: 7.76 lpm

FM

Thursday, July 30, 2020, 15:53: Auto-cooling TGHT/TBHT to 0 @ 4 A/min 

Thursday, July 30, 2020, 23:02

Ramp down terminated around 7pm, the current was ramped smoothly but the voltage from both PS (TGHT and TBHT) had some bumps in correspondance with vacuum response. Maybe something was shorting? A thorough inspection of the heat shield and target might tell more.

Thanks Fernando for ramping down! 

Tuesday, August 04, 2020, 07:33: PS / sources off. Lock out. IG & Turbo pumps off. Purge waterlines. - AS

Tuesday, August 04, 2020, 09:32

Started rewiring the test stand.

TBHT+ (A1 and A2): connected to A

TBHT- (B1 and B2): connected to B

COIL+ (A3): connected to E

COIL-(B3): connected to F

4/0 short connection from F to H removed

Tuesday, August 04, 2020, 15:27

Extech measurements after heating (µOhm):

TGHT Left leg Ta-Cu: 160, 176, 184, 180

TGHT Right leg Ta-Cu: 49, 48, 52, 53.

TGHT Ta legs: 470, 469, 463, 480.

TBHT A: 2400, 2229,2492.

TBHT B: 2361, 2411, 2412.

 Wednesday, April 14, 2021, 10:18

Work started to bring the ATTS PS inside the ITS HV cage. HV grounding rod and metal sheet around breaker panel were removed - see picture.

 Friday, April 16, 2021, Afternoon

HS line purged and turbos shut down.

Monday, April 19

Morning, Anders vented ITS

11AM, Dan found o-ring and indium seal on the same connector - likely this was the cause of the leak. replaced by a brand new indium seal, punched with the RH punchers, which seems the way to go.

Evening, Luca disinstalls FEBIAD from Fernando, and installs the P2N target. It has not been leak checked in the cold lab prior to installation (I'm not sure where all the equipment is), and no resistance measurements were carried out since I couldn't find Travis's ohm-meter.

Vacuum coming down, but slowly than I expected (took 1h to get from 2e-5 to 1e-5 T, is this right?)

Tuesday, April 20, 2021, 15:33

This morning Ray installed the controls cables connecting the ATTS PSs. They are still attached to the ATTS PLC, but their interlock signal now comes from the TBHT "enable" , through a 15V signal. Once the power is ON, he recommends checking that the TBHT sends the proper 15V (has to be higher than 12V) to the ATTS PLC, checking the voltage between the red and green/while cables on the PLC module labelled "TGHT:MAS". This should be done once the TBHT is "enabled", so the signal is sent.

The DC cables were installed going from the positive and negative poles of the ATTS:SLV. The order and number of 4/0 cables are:

Positive: One cable to G and two cables to E

Negative: One cable to H amd two cables to F

This should be checked with Arthur once he's on site (tomorrow).

A water leak was still seen, while the pressure was around 1E-6 T. Checking all three loops of FS#3, it's confirmed again that the leak is in HF. Will need top open up and pinpoint the leak.  

Thursday, April 22, 2021, 13:45

The lines F and G were inspected for water leaks. After blanking them to inspect the solder joint along the lines, two new indium seals were repositioned, the lines sniffed and no signs of leaks were detected. TS closed up again, pumping down now.

 Friday, April 23, 2021, 21:06

Pressure in ITS slowly coming down. This morning was ~3E-6T and now is 2E-6T. Water was flowing for most of the day, but I turned it off and purged FS#3 with no significant difference. I re-turned it on in order to run short PS tests with little current (up to ~10 A) for few seconds every time. Now I purged FS#3 again to leave the TS pumping over the weekend with air, so that opening the water in few hours/days might give us a better idea if the leak is still there.

As far as power supplies, we ran lots of tests today with Ray and Arthur (both were remotely connected through Teams). Initially the tests were unsuccesful because I kept turning off the main breaker when testing the electronics, and only later realized the ITS-PLC is connected to the same breaker.

After this realization, we progressed step by step: we confirmed that the enable signal (~13 V) was seen by both the ITS-TBHT and the ATTS-MASTER, however we realized that the ATTS:MASTER was *not* turning OFF when it should have. This is because the shutoff voltage signal was not zero, but was around ~1V, and was enough to turn OFF the TBHT (Xantrex) but not the ATTS:MASTER (TDK). Arthur suggested this could be due to the fact that two PLC are tied to each other, and see different "grounds", hence some voltage confusion might be coming from here. After taking a look at the connections in the ATTS PLC, we decided to try isolating the ATTS:MASTER module from its ground connection by disconnecting the yellow and green wires coming from the top of its PLC module, and this resolved the issue when the DB25 connector of the ATTS"MASTER is disconnected from the PS; however, once this DB25 is connected, the voltage seen by the MASTER is still ~1V and not zero, and still enables the PS when it should instead be shutoff. 

Next week we should try to find the proper wire configuration that allows seeing zero V as shutdown signal and not ~1V.   

Tuesday, April 27, 2021, 20:56

The new P2NHT power supply configuration is now operational at the test stand. A relay was added in the PLC cabinet to take a +15V signal from the TBHT PLC module and close a short circuit to "enable" the P2NHT master and slave (TDK-LAMBDA).

After initial ramping up to ~222A, I noticed the voltage read by the PS was about 0.45V, while extrapolating the results from the previous ITS-P2N run, the voltage should have been ~0.9V. I would like to measure the resistances of the lines to pick up potential shorts in the copper conductors in the vacuum chamber.  

Wednesday, April 28, 2021, 11:30 

This morning, the resistance matrix was measured between the feedthroughs of the test stand, see attached picture.   

TBHT+ = A

TBHT- = B

P2NM- = C

P2NM+ = D

P2NS+ = G,E

P2NS- = F,H

Talking to Carla, we agree that the matrix seems correct and does not show any signs of short in the lines. But still, the voltages read by the PS seem too low compared to the previous run on July 2020.

Wednesday, April 28, 2021, 19:14

To make sure that current is not flowing where it is not supposed to be, the ion source only (A, B) was hooked up  to the TBHT

Voltages: 

A/C (TBHT+ / P2NM-)=-0.11 V

A/D (TBHT+ / P2NM+)=-0.11 V

B/C (TBHT- / P2NM-)=0.21 V

A/B (TBHT+ / TBHT-) = 0.33 V

While the PS reads 0.42 V --> The two lines made up by two welding cables each make up for the remaining 0.09 V

There's no current flowing anywhere else, all other feedthrough have V=0 between each other.

Wednesday, April 28, 2021, 20:01

Welding cables attached so that the P2NM and P2NS only (TGHT and COIL) are delivering current to the target.  

At 230A of the P2N heater (130 on the master, 102 on the slave), the sum of all current coming and going to the feedthroughs balances out. 

The voltages across feedthroughs make sense:

B/C (TBHT+ / P2NM-)= 0.20 V

B/D (TBHT+ / P2NM+)=0.22 V

A/B (TBHT+ / TBHT-) = 0.0 V

C/D (P2NM- / P2NM+) = 0.44 V

E/C (P2NS+/P2NM-) = 0.46V

The current going from I (HV common) to H (P2NS-) is zero (0.3A)

After checking these values, I see no reasons to believe the wiring is incorrect, and will proceed with the full installation of P2N heater and TBHT, and ramping up the whole system together. It was noticed though that the TBHT cannot be ramped automatically since the ITS TGHT is not connected to the PLC, and needs to be ramped by hand.

Wednesday, June 23, 2021, 12:22: Roughing.

Wednesday, June 23, 2021, 13:22: TP1B on.

TP1B tripped.

Wednesday, June 23, 2021, 15:05: TP1B was restarted.

Wednesday, June 23, 2021, 15:15: TP1B on.

Wednesday, June 23, 2021, 16:21: TP1A started.

Wednesday, June 23, 2021, 16:30: IG1 on.

Wednesday, June 23, 2021, 17:53: FS#5 opened. Vacuum @ 7.52e-06T

Wednesday, June 23, 2021, 17:56: Vacuum Stable. Power on. TGHT / TBHT on.

Thursday, June 24, 2021, 05:40: Auto-ramping TGHT / TBHT to 300 / 150 A @ 2 A per min. 

Thursday, June 24, 2021, 09:00: IV4 Opened.

Thursday, June 24, 2021, 09:02: Auto-ramping TGHT / TBHT to 580 / 230 A @ 2 A per min.

Thursday, June 24, 2021, 09:10: BIAS / EE / EZL @ 30 / -1.5 / 13 kV. Optics on & set

Thursday, June 24, 2021, 12:52: Mass / Wire scans complete

 Thursday, June 24, 2021, 14:00: Auto-cooling @ 2 A per min.

 Thursday, June 24, 2021, 14:08: Auto-cooling aborted. TGHT / TBHT back to 580 / 230 A. Checking the emittance rig.

Thursday, June 24, 2021, 22:20: Auto-Cooling & HV off. - CB

Friday, June 25, 2021, 05:32: Sources off. IV4 closed. IG1 & Turbo pumps off.  

Friday, June 25, 2021, 07:09: IV4 reset. Power off. Venting.

Tuesday, May 09, 2023, 10:28: Roughing.

Tuesday, May 09, 2023, 11:25: TP1B on. 

Tuesday, May 09, 2023, 12:38: TP1A on.

Tuesday, May 09, 2023, 12:49: IG1 on. 

Wednesday, May 10, 2023, 10:41: Waterline FS#5 opened. Vacuum @6.36e-07T

Wednesday, May 10, 2023, 10:56: IV4 open. Power / sources / optics on. 

Wednesday, May 10, 2023, 10:59: Auto-ramping TGHT / TBHT to 300 / 150 A @ 2 / 1 A per minute. 

Wednesday, May 10, 2023, 11:09: BIAS / EE / EZL @ 10 / -1.0 / 5 kV. 

Wednesday, May 10, 2023, 11:54: Vacuum climbing quickly @ 4.10e-06T. Halt ramping to stabilize. TGHT / TBHT @ 100 / 50 A.

Wednesday, May 10, 2023, 11:59: Vacuum @ 7.69e-06T & still climbing. 

Wednesday, May 10, 2023, 12:05: Levelled off @ 8.91e-06T. 

Wednesday, May 10, 2023, 13:16: Vacuum @ 2.04e-06T. Auto-ramping TGHT / TBHT to 200 / 100 A @ 2 / 1 A per minute.

Wednesday, May 10, 2023, 13:34: Abort ramping. 

Wednesday, May 10, 2023, 13:52: Vacuum @ 4.35e-06T. Restart auto-ramping TGHT / TBHT to 200 / 100 A @ 1 A per minute.

Wednesday, May 10, 2023, 15:43: Vacuum @ 1.05e-06T. Auto-ramping TGHT / TBHT to 300 / 150 A @ 1 A per minute.  

Wednesday, May 10, 2023, 16:36: Vacuum @ 8.23e-07T. TGHT  / TBHT @ 250 A / 150 A. Auto-ramping TGHT / TBHT to 450 / 250 A @ 2 / 1 A per minute.  

Wednesday, May 10, 2023, 20:52: Vacuum @ 5.01e-06T. TGHT / TBHT Slowly ramping due to vacuum limit being reached. 

Thursday, May 11, 2023, 05:42: TBHT reduced @ 230 A. Auto-ramping TGHT to 580 A @ 2 A per min 

Thursday, May 11, 2023, 05:52: BIAS / EE / EZL @ 30 / -1.5 / 13 kV.

Thursday, May 11, 2023, 09:30: Mass & wire scans complete.

Friday, May 12, 2023, 07:21: Auto-cooling @ 1 A per min.

Friday, May 12, 2023, 11:54: HV to 0 kV. 

Tuesday, May 16, 2023, 11:03: IV4 closed. Power / Sources off. Locked out.

Tuesday, May 16, 2023, 11:04: IG1 & IG6 off. All turbo pumps off.

Tuesday, May 16, 2023, 12:19: Venting.

(Spare HP-SIS SiC SiC-23B)

Wednesday, May 31, 2023, 15:18: Roughing.

Thursday, June 01, 2023, 07:30: TP1B on.  

Thursday, June 01, 2023, 07:31: TMS:TP6 & TMS:TP2 on. 

Thursday, June 01, 2023, 07:38: IG6 on. TSG:TP1A on.

Thursday, June 01, 2023, 07:48: IG1 on.

Thursday, June 01, 2023, 08:26: Waterline FS#5 on. Vacuum @ 1.40e-06T. Power on.

Thursday, June 01, 2023, 08:28: Sources on. IV4 open.

Thursday, June 01, 2023, 08:31: Optics set.

Thursday, June 01, 2023, 08:33: Quick check: Manually tap up TGHT / TBHT to 5 / 5 A

BIAS / EE / EZL @ 1 / -0.5 / 1 kV.

Thursday, June 01, 2023, 08:51: Auto-ramping TGHT / TBHT to 100 / 50 A @ 2 A per min.

Thursday, June 01, 2023, 09:55: Auto-ramping TGHT / TBHT to 300 / 100 A @ 2 A per min.

Thursday, June 01, 2023, 11:36: Auto-ramping TGHT / TBHT to 580 / 230 A @ 2 A per min.

Thursday, June 01, 2023, 13:56: BIAS / EE / EZL @ 30 / -1.5 / 13 kV. 

Thursday, June 01, 2023, 14:20: Mass & wire scans.

Friday, June 02, 2023, 07:10: Mass & wires scans complete. Auto-cooling @ 2 A per min 

Friday, June 02, 2023, 09:22: BIAS / EE / EZL @ 0 kV. 

Thursday, June 08, 2023, 07:51: IV4 closed. Power / Sources off.

Thursday, June 08, 2023, 07:53: IG1 & Turbo pumps off.

Thursday, June 08, 2023, 10:32: Venting.

Tuesday, February 06, 2024, 11:45: Roughing.

Tuesday, February 06, 2024, 13:27: TP1B on.

Tuesday, February 06, 2024, 13:33: TP1A on.

Tuesday, February 06, 2024, 13:47: IG1 on.

Wednesday, February 07, 2024, 06:54: Vacuum @ 7.55e-07T.

Wednesday, February 07, 2024, 06:56: PS on. FS#5 open. Vacuum stable.

Wednesday, February 07, 2024, 06:58: Coil jumped from 0A with the breaker off to 200 A w/ 4.2 V.

Wednesday, February 07, 2024, 06:59: Coil PS switched on. Increase coil current to 75 A & back down again. No change. Will need to trouble shoot this once this target is complete.

Wednesday, February 07, 2024, 07:04: Auto-ramping TGHT / TBHT to 350 / 200 A @ 2 A per min. Good vac / bad vac settings set back to 5.00e-06T / 7.00e-06T. Note: The TS will trip at 1.00e-05T.

Wednesday, February 07, 2024, 07:09: FC0 still acting up. Optics on.

Wednesday, February 07, 2024, 10:28:  Auto-ramping TGHT / TBHT to 580 / 230 A @ 2 A per min. 

Wednesday, February 07, 2024, 12:10: IV4 open.

Wednesday, February 07, 2024, 12:14: BIAS / EE / EZL @ 30 / -1.5 / 13 kV.

Wednesday, February 07, 2024, 12:15 : Opening & Closing FC0 for a measurment does not interfere with IV4.

Wednesday, February 07, 2024, 12:42: One audible spark. Knocked out TMS : Q2/Q5. Reset.

Wednesday, February 07, 2024, 13:34: Mass & Wire scans complete with 2 tunes. Ok.

Thursday, February 08, 2024, 09:02: Auto-cooling @ 2A per min.

Coil PS removed. (See elog 995)

Friday, February 16, 2024, 04:57: IV4 closed

Friday, February 16, 2024, 04:58: IG1 & TP off.

Wednesday, June19, 2024, Spare TiC HP-SIS target installed. TiC#24C

Wednesday, June19, 2024, 15:00: Roughing

Wednesday, June19, 2024, 17:25:  TP1B started.

Wednesday, June 19, 2024, 15:30:  TP1B Green. OK.

Wednesday, June 19, 2024, 15:30 : TP1A on.

Wednesday, June 19, 2024, 15:40: Time out on TP1A

Wednesday, June 19, 2024, 15:43: Turn on BV1A & TP1A

Wednesday, June 19, 2024, 15:43 : TP1A Green. OK.

Wednesday, June 19, 2024, 15:44: IG1 turned on @ 3.92e-05 T

_________   dave neilson

 Thursday, June 20, 2024, 10:23: Water cooling valves opened. no effect on vacuum.    

Thursday, June 20, 2024, 11:19: Power on. Increasing TGHT TBHT to 440A 290A at 1A/30s

Thursday, June 20, 2024, 15:59  increasing BIAS / EE / EZL to 30 / -1.5 / 13 kV.

Thursday, June 20, 2024, 16:21   slowly increasing BIAS to test for high voltage sparking  --- sparked at 33.6kV, sparked at 34kV. 34.6kV, 37.8kV sparking infrequent (period >5min)

Thursday, June 20, 2024, 17:18  decreasing high voltages  to 0

Thursday, June 20, 2024, 17:36  decreased TGHT to 300A overnight.

Friday, June 21, 2024, 09:16 Increasing TGHT to 580A (1A/30s) for testing

 Friday, June 21, 2024, 12:28  increasing BIAS / EE / EZL to 30 / -1.5 / 13 kV.

 Friday, June 21, 2024, 16:31  decreasing BIAS / EE / EZL to 0

Tuesday, June 25, 2024, 10:05 : TP1A TP1B off. preparing to vent chamber for target replacement.

Wednesday, July 10, 2024, 12:22: Venting - AS

Wednesday, July 10, 2024, 14:57: Roughing.

Tuesday, September 10, 2024, 16:21:   Target installed in test stand by Brady

Tuesday, September 10, 2024, 16:21: roughed down and turbo pumps now on.

Tuesday, September 10, 2024, 20:27   Pressure at 4.9e-6, increasing TGHT TBHT to 580A/230A at 1A/30s

Wednesday, September 11, 2024, 10:00 The TGHT TBHT parameters were mistakenly reversed during heating. TBHT was dropped to 230A and TGHT increased to 580A at 1A/30s.

Wednesday, September 11, 2024, 13:50 TGHT TBHT at 580 230.  Increasing BIAS/EE/EZL to 30/2.5/13 kV.

Wednesday, September 11, 2024, 14:36 At high voltage, on FC0 there is an output beam current of 1.85e-7 A.

Wednesday, September 11, 2024, 14:49 Mass scan recorded.   2024-09-11 HPTiC-24D - scan 1.txt ... FC6 problem with recording background level data persists

Wednesday, September 11, 2024, 15:53  increasing BIAS and EZL to condition high voltage 

Wednesday, September 11, 2024, 16:32 at 37kV (EZL 22kV), TGHT timed out and cut the current to the target. I elected to leave it cold rather than suddenly reheating it, and am cooling down TBHT at -1A/30s, while continuing to increase BIAS for conditioning.

there have been no sparks at all and I'm unsure of what precipitated this event. None of the 'trip indicators' on the TGHT panel lit up during this event. I will bring this up with Keiko/Roberto tomorrow Sept 12.

Wednesday, September 11, 2024, 17:06  one spark occurred at 49kV

 Wednesday, September 11, 2024, 17:15  now at 50kV, EZL at 33kV.  Over 30 minutes there was just one spark at the HV bias.

Wednesday, September 11, 2024, 17:50  decreasing high voltage elements to 0 0 0.