Note: SiC#42 replacement.

Saturday, June 18, 2022, 09:54: Roughing.

Saturday, June 18, 2022, 10:08: Data logger removed. Pins 4 & 5 grounded. Power on.

Saturday, June 18, 2022, 10:41: TP1B on.

Saturday, June 18, 2022, 10:48: TP1A on.

Saturday, June 18, 2022, 10:55: IG1 on.

Saturday, June 18, 2022, 11:13: Gases on. Cage closed up. SV5 remains on. SV4 (Argon tank) Closed.

Saturday, June 18, 2022, 11:14: Vacuum @ 2.49e-05T.

Saturday, June 18, 2022, 11:15: Waterline FS#5 opened.

Saturday, June 18, 2022, 11:22: Electrical check w/ IG1 bypass

BIAS / EE / EZL @ 2.5 / -0.5 / 1 kV. Anode @ 100V.

TGHT / TBHT @ 5 A each. Coil @ 5 A.

Saturday, June 18, 2022, 11:23: All checks clear. Bypass removed. Ready for remote operation. Vacuum @ 2.14e-05T

Saturday, June 18, 2022, 21:34: Sources on. Vacuum @ 3.38e-06T. IV4 open. 

Saturday, June 18, 2022, 21:36: Optics on. Standard tune.

Saturday, June 18, 2022, 22:24: Auto-ramping TGHT / TBHT to 350 / 150 A @ 2 A per min to out gas overnight.

Saturday, June 18, 2022, 22:55: BIAS / EE / EZL @ 2.5 / -0.5 / 1 kV. Anode @ 100V. Coil @ 10 A. Low settings left as a general electrical check to run as the target heats up.

Sunday, June 19, 2022, 16:37: Vacuum @ 1.60e-06T.

Sunday, June 19, 2022, 16:40: Open SV4 (Argon gas - W/ quick steps on procedure). Vacuum ok.

Sunday, June 19, 2022, 16:42: Auto-ramping TGHT / TBHT to 580 / 290 A @ 2 A per min. 

Sunday, June 19, 2022, 19:48: BIAS / EE / EZL / Anode @ 0. Coil to 0. 

Sunday, June 19, 2022, 19:59: Anode tapped up manually to 400 V @ approx 1 V per second. 

Sunday, June 19, 2022, 20:14: Anode tapped up manually to 0 V @ approx 1 V per second.

Sunday, June 19, 2022, 20:14: Coil tapped up manually to 100 A @ approx 1 A per second.

Sunday, June 19, 2022, 20:15: Full Trip. Vacuum limit passed. TGHT / TBHT Went to 0 A

Sunday, June 19, 2022, 20:17: TGHT / TBHT @ 580 / 290 A.

Sunday, June 19, 2022, 20:31: Stable. Vacuum @ 4.21e-06T. 

Sunday, June 19, 2022, 20:58: BIAS / EE / EZL @ 30 / -1.5 / 13 kV. Anode @ 100 V. 

Sunday, June 19, 2022, 21:00: Coil @ 10 A. Vacuum @ 3.49e-06T. 

Sunday, June 19, 2022, 21:07: Begin mass & wire scans.

Sunday, June 19, 2022, 21:39: Scans complete.

Monday, June 20, 2022, 05:58: Further mass, wire, & emittance scans.

Monday, June 20, 2022, 06:29: Coil @ 40 A, Anode @ 300 V. Optics set to FM tune.

Monday, June 20, 2022, 06:59: Scans complete. Auto-cooling @ 3 A per min.

Monday, June 20, 2022, 07:03: Coil & Anode to 0 A / 0 V.

Monday, June 20, 2022, 07:07: BIAS / EE / EZL @ 0 kV.

Monday, June 20, 2022, 10:12: IV4 closed.

Monday, June 20, 2022, 10:13: Gases closed. IG1 off. Turbo pumps off.

Monday, June 20, 2022, 11:09: Venting.

Thermocouples connected. Test HV

Wednesday, June 08, 2022, 09:33: Roughing.

Wednesday, June 08, 2022, 10:07: TP1B on.

Wednesday, June 08, 2022, 10:13: TP1B up to speed. TP1A on.

Wednesday, June 08, 2022, 10:21: TP1A up to speed. IG1 on.

Wednesday, June 08, 2022, 13:06: Waterline FS#5 Open. Vacuum @ 3.32-e06T.

Wednesday, June 08, 2022, 13:22: BIAS / EE / EZL @ 30 / -1.5 / 13 kV. OK.

Wednesday, June 08, 2022, 13:26: One spark*.

Wednesday, June 08, 2022, 13:32: BIAS / EE / EZL @ 35 / -1.8 / 15 kV.

Wednesday, June 08, 2022, 13:33: Spark*

Wednesday, June 08, 2022, 13:38: BIAS / EE / EZL @ 40 / -2.0 / 17 kV

Wednesday, June 08, 2022, 13:42: Spark*. Outside the cage (EE) Feedthrough (K) Between a hex edge & one of the resistors on a plastic plate.

Wednesday, June 08, 2022, 13:50: BIAS / EE / EZL @ 45 / -2.3 / 19 kV

Wednesday, June 08, 2022, 14:18: We are back. Spark tripped the computer & shut it off while tapping up the HV. BIAS / EE / EZL @ 48.3 / 2.4 / 20 kV.

Wednesday, June 08, 2022, 14:22: BIAS / EE / EZL @ 50 / -2.5 / 20 kV.

Wednesday, June 08, 2022, 14:45: Spark* In the cage.

Wednesday, June 08, 2022, 14:57: Spark* In the cage.

Wednesday, June 08, 2022, 15:19: No sparks have occurred off the thermocouples.  Begin tapping down the HV.

Wednesday, June 08, 2022, 15:29: HV off. TGHT / TBHT Check @ 5 / 5 A OK.

Wednesday, June 08, 2022, 15:31: IV4 open.

Thursday, June 09, 2022, 05:14: Auto-ramping TGHT / TBHT to 350 / 150 A @ 2 A per min. 

Thursday, June 09, 2022, 08:21: BIAS / EE / EZL @ 30 / -1.5 / 13 kV. OK.

Thursday, June 09, 2022, 08:22: Auto-ramping TGHT / TBHT to 350 / 150 A @ 2 A per min

Thursday, June 09, 2022, 08:29: Optics set. Standard tune.

Thursday, June 09, 2022, 10:22: Beginning wire & mass scans.

Thursday, June 09, 2022, 10:30: Adjust TSG:CB1 (ok)

Thursday, June 09, 2022, 11:40: Mass & wire scans complete. Tune set to standard. HV tests begin. BIAS / EE / EZL @ 35 / -1.8 / 15 kV.

Thursday, June 09, 2022, 11:45: BIAS / EE / EZL @ 40 / -2.0 / 17 kV

Thursday, June 09, 2022, 13:01: BIAS / EE / EZL @ 45 / -2.3 / 19 kV

Thursday, June 09, 2022, 13:13: Small spark* Outside the chamber, but in the cage.

Thursday, June 09, 2022, 13:22: BIAS / EE / EZL @ 50 / -2.5 / 20 kV. (One spark during the tap up. In the cage)

Thursday, June 09, 2022, 14:03: Small spark, barely audible.

Thursday, June 09, 2022, 14:11: Large spark in the cage* Computer was shut off. Got it back around 14:16

Thursday, June 09, 2022, 14:20: Reset steering, optics, IG6.

Thursday, June 09, 2022, 14:28: Begin tapping down HV

Thursday, June 09, 2022, 14:34: HV to 0.

Thursday, June 09, 2022, 14:36: Closed IV4. (Reset w/ screwdriver)

Friday, June 10, 2022, 09:58: Auto-Cooling @ 2 A per min.  

Monday, June 13, 2022, 10:16: IG1 off. Turbo pumps off.

Using a broken LP-FEBIAD source. TGHT only.

Tuesday, May 31, 2022, 13:24: Roughing.

Tuesday, May 31, 2022, 13:54: TP1B on.

Tuesday, May 31, 2022, 14:06: TP1A on.

Tuesday, May 31, 2022, 14:13: IG1 on.

Wednesday, June 01, 2022, 07:41: Vacuum @ 2.13e-06T. Waterline FS#5 open.

Wednesday, June 01, 2022, 07:43: Power/Sources on.

Wednesday, June 01, 2022, 07:51: Auto-ramping TGHT to 580A @ 2A per min.

Monday, June 06, 2022, 07:09: Auto-cooling @ 2A per min. 

Wednesday, June 08, 2022, 07:07: Turbo pumps off.

Wednesday, June 08, 2022, 07:53: Venting.

A web-app for systematic FEBIAD parametrizations has been develop and  now includes the ISAC Test Stand (ITS) :

https://beta.hla.triumf.ca/degaussing/FEBIAD-scan/

Upon landing in the web-app the ITS will be selected by default as well as the TMS:FC6:SCALECUR faraday cup, which corresponds the last cup of the ITS beamline.

To run a similar scan but on the total source current (FC0) the field has to change from TMS:FC6:SCALECUR to TMS:FC0:SCALECUR.

Each measurement will create a unique id (measurement_id), and the data can be retrieved from

https://beta.hla.triumf.ca/jaya/data/get/measure_id

Plot and analysis routines for the data generated by the FEBIAD-scan can be found in 

https://jupyter.triumf.ca/hub/login

for which you need a TRCOMP account. The routines are located in the group folder 

/group/ionsrc/fernando

Wednesday, May 25, 2022, 15:46: Roughing.

Wednesday, May 25, 2022, 16:21: TP1B on.

Wednesday, May 25, 2022, 16:38: TP1A on.

Wednesday, May 25, 2022, 16:46: IG1 on.

Thursday, May 26, 2022, 09:20: FS#5 Waterline opened. Vacuum ok @ 5.27e-06T.

HV preset: BIAS / EE / EZL @ 30 / -1.0 / 15 kV

Friday, May 27, 2022, 05:11: Coil to 40 A. Anode t0 300 V.

Friday, May 27, 2022, 05:16: TGHT on. Auto-ramping TGHT / TBHT to 580 / 290 @ 2 A per min. 

Friday, May 27, 2022, 07:14: Optics set & IV4 opened. TGHT / TBHT @ 242 A (Ramping ongoing)

FM

Friday, May 27, 2022, 17:17 : IG1 @ 5.19e-6 T. TBHT @ 290 A. TGHT @ 540 A since 16:27.

Friday, May 27, 2022, 17:18: The assembly has been outgassing and the good vacuum limit was reached, preventing reaching the operational point.

Friday, May 27, 2022, 17:19: Auto-ramp up aborted. We'll heat up again Monday morning.

Friday, May 27, 2022, 17:20: Auto-cooling to 0 A @ 2A/min 

Sunday, May 29, 2022, 21:35: Auto-ramping TGHT/ TBHT to 350 / 150 A @ 2 A per min - AS.

Sunday, May 29, 2022, 21:40: Vacuum @ 1.43e-06T. 

Monday, May 30, 2022, 04:53: Vacuum @ 1.49e-06T. Auto-ramping TGHT / TBHT to 580 / 290 A @ 2 A per min - AS 

Monday, May 30, 2022, 08:06: Initial wire & mass scans ok. Increase EE to -1.5 kV.

Monday, May 30, 2022, 08:30: EE back to -1.0 kV.

Monday, May 30, 2022, 10:31: BIAS / EE / EZL / Anode @ 0 kV. Lock over. Open back/top cage.

FM
Monday, May 30, 2022, 11:21: Mass set to 40Ar+. The gas on/off now shows an effect on the signal 

Monday, May 30, 2022, 11:24: Running a small scan to test the web-app 

Monday, May 30, 2022, 14:00: Spark towards TBHT, TPS:Q1 charged up. 

Monday, May 30, 2022, 14:30: Spark to anode. 

Monday, May 30, 2022, 16:16: Issue preventing FEBIAD-scan solve.

Monday, May 30, 2022, 16:16 : FEBIAD scan on 40Ar+.  

Monday, May 30, 2022, 17:00:   TMS :VCB1 died in the middle of the scan. Scan aborted save id 1085. Starting a new scan

 Monday, May 30, 2022, 18:24: measured_id = 1086

Moving to H2O

Monday, May 30, 2022, 18:30: Scan started for H2O. 

Monday, May 30, 2022, 19:53: Scan finished. measure_id = 1087

Monday, May 30, 2022, 19:58: Gas off. Scan for H2O ready to go. 

Monday, May 30, 2022, 19:59: Scan started 

Monday, May 30, 2022, 21:21: Scan finished. measured_id = 1089 

Monday, May 30, 2022, 21:32: Auto-cooling to 0 A @ 2A/min

AS

Tuesday, May 31, 2022, 05:10: All HV & Sources off.

Tuesday, May 31, 2022, 05:11: IV4 closed. IG1 & turbo pumps off. 

Tuesday, May 31, 2022, 07:02: IV4 reset. Venting.

Tuesday, May 31, 2022, 07:08: FS#5 purged. Power locked up.

PE shimmed & extended 1mm due to likely ion source contact.

Thursday, May 12, 2022, 10:41: Roughing.

Thursday, May 12, 2022, 11:26: TP1B on. 

Thursday, May 12, 2022, 11:35: TP1A on.

Thursday, May 12, 2022, 11:43: IG1 on.

Thursday, May 12, 2022, 11:48: Vacuum @ 2.65e-05T. FS#5 Opened. No immediate spike.

Thursday, May 12, 2022, 11:50: Vacuum @ 2.47e-05T & dropping.

Friday, May 13, 2022, 07:32: TP/IG off.

Friday, May 13, 2022, 09:51: Venting.

Target oven #45241-1 swapped out. SS bolts were in use on the legs.

Molybdenum screws in the legs on oven #44812-2. No target to ion source cup interference. 3mm gap - OK.

TGHT - R: 1.215

TGHT - L: 1.206

TBHT - R: 2.014

TBHT - L: 2.013

Cathode cable detached from feed-through (B).

Wednesday, May 11, 2022, 10:04: Roughing.

Wednesday, May 11, 2022, 10:33: TP1B on.

Wednesday, May 11, 2022, 10:43: TP1A on.

Wednesday, May 11, 2022, 10:51: IG1 on.

Wednesday, May 11, 2022, 13:43: Vacuum @ 5.43e-06T. FS#5 Open.

Wednesday, May 11, 2022, 13:45: Vacuum @ 5.36e-06T. OK.

 Ref: https://elog.triumf.ca/TIS/Test-Stand/924. During testing, it was noted one leg was glowing vs the other. P2N assembly was removed & inspected. No contact or defects were found.

Tuesday, May 10, 2022, 10:05: Roughing.

Tuesday, May 10, 2022, 10:42: TP1 on.

Tuesday, May 10, 2022, 10:50: TP1A on.

Tuesday, May 10, 2022, 10:58: IG1 on. Vacuum @ 1.77e-05T & dropping.

Tuesday, May 10, 2022, 13:45: Vacuum @ 5.63e-06T. FS#5 Opened.

Tuesday, May 10, 2022, 13:58: Vacuum @ 5.27e-06T.

Beginning of May:

The cabling on the top of the test stand was changed to adapt for P2N testing. The TGHT and COIL PS were disconnected, and their DC cable terminals were connected instead to the TDK-LAMBDA P2Nheaters. The configuration on top of the ITS module is the following:

TBHT+ = A

TBHT- = B

MASTER+ = D

MASTER- = C

SLAVE+ = G/E

SLAVE- = F/H

Friday May 6th, afternoon

Once the pressure was almost stable in the low E-6 torr range, the first rampup was conducted up to ~600 A and the I,V parameters looked similar to previous P2N units. More tests to full current happening next week.

Monday, May 09, 2022, 09:29

P2N unit is being heated now, the automatic ramping utility is ramping the TDK-LAMBDAs while the TBHT is being increased manually.

Monday, May 09, 2022, 10:31

A voltage event happened, the TBHT voltage increased frmo 0.64 V to 0.73 V, while the P2Nheater dropped from  1.73 V to 1.56 V. 

Monday, May 09, 2022, 12:19

At P2NHT=950A it was noticed that one leg of the P2N was glowing much more than the other, the ramping was first stopped and then ramped down.

Now the P2NHT=282A and TBHT=47A

Tuesday, May 10, 2022, 09:32

Test stand vented and target inspected, there is no obvious sign of damage or misconnection on the tantalum assembly. Some resistance measurements were taken across target elements and connections: 

Screw on copper L to bottom flexy leg L = 117

Bottom flexy leg L to top flexy leg L = 24 / 0 (?)

top flexy leg L to bottom elephant leg L = 64

elephant L to elephant R = 360

top flexy leg R to bottom elephant leg R = 69

Screw on copper R to bottom flexy leg R = 125

Tuesday, May 10, 2022, 11:39

This morning, the target was inspected but nothing major was noticed, hence it was put back in the ITS for heating.

Tuesday, May 10, 2022, 17:40

Target being ramped: so far all good, total current in P2NHT=690A and TBHT=116A

A current measuring clamp was used to measure current in the 4/0 cables. The only bad thing is that the slave outputs half the current than the master, making the cables hotter (30deg vs 24deg).

Currents:

A-B ~116 A (TBHT)

C~468

E~124

G~102

Tuesday, May 10, 2022, 17:45

Event: reduction in P2NHT voltage and increase in TBHT voltage. After letting the PS ramp, it was noticed that the P2NHT voltage accelerated its increased, and the left leg started glowing like the previous time. The current was immediately ramped down, but still there was a voltage spike upwards in the P2NHT. 

While the leg was glowing hot, the current between feedthroughs H (P2NHT-) and I (HV common) was 90A. Now that the "episode" is not there any more, the current is zero

Wednesday, May 11, 2022, 10:55 

The previous P2N target had stainless steel screws at the bottom, where the copper L-shaped connector and the ta foil legs connect, which might have bene the cause of the gap opening and voltage increase. Now, the target manufactured for the previous beamtime is used, which does not have the cuts on the elephant ears but they are OK since don't interfere with the new IS cup design, and are ~3mm away from it.

Wednesday, May 11, 2022, 13:57 

 Start heating the new P2N assembly

Wednesday, May 11, 2022, 14:58

 Stopped at

P2NHT= 501 A

TBHT= 95 A

All currents seem to be flowing in the right path, with no current in the jumper between H-I

Wednesday, May 11, 2022, 15:26

Voltage step in P2NHT and TBHT happened again. Current sum:

A = 125 A

B = 125 A

C= 470 A

D=474 A

E = 118 A

F= 85 A

G = 95 A

H = 132 A

Short G-E = 5 A

Short F-H = 3 A

Jumper H-I = 62 A

The most likely explanation of this jump is that the IS tip touches the plasma electrode as shown in the drawing below which would result in some current flowing through the jumper, more investigations are needed

Thursday, May 12, 2022, 08:19

Test stand opened, there is some sign of burn in the plasma electrode, but it's hard to say if it's because they were touching. Aaron added a tantalum 0.040" shim to the plasma electrode to distance it further from the target IS tube

Thursday, May 12, 2022, 13:20

ITS with P2N target installed and pumping down 

Thursday, May 12, 2022, 15:50

P2NHT started ramping 

Thursday, May 05, 2022, 14:43: Roughing. Open BV1B

Thursday, May 05, 2022, 14:46: Upper chamber cage closed. The rest remains open. Open BV1A.

Thursday, May 05, 2022, 15:20: TP1B up to speed.

Thursday, May 05, 2022, 15:25; TP1A on.

Thursday, May 05, 2022, 15:32: TP1A to speed. IG1 on.

Thursday, May 05, 2022, 15:33: Vacuum @ 4.72e-05T. FS#5 Open. No spike. ok.

Thursday, May 05, 2022, 15:34: Vacuum steady 4.09e-05T & dropping.

No P2N is loaded. Testing the power supplies.

Tuesday, May 03, 2022, 10:07

In the past few days, the ITS has been reconfigured for P2N operation:

•  The two ATTS PS were moved to the ITS rack, one on top of the TGHT and the other instead of the COIL
• AC rewiring was necessary since the breakers were not connected to the wires. Marshall was on it and re-connected
• Ray has configured the ATTS PLC to be compatible with P2N operation in ITS
• The controls cables to the MASTER and SLAVE supplies have been configured: the cables come from the front of the PS rack, so we could close the back and top cage if we wanted. One control cable was connected to the relay to send the proper ENABLE signal only when the ITS vacuum and water flow are OK
• DC cables re-routed for P2N parallel operation:
  MASTER+ = D
  MASTER- = C
  SLAVE+ = E,G 
  SLAVE- = F,H
  TBHT+ = A
  TBHT- = B

Wednesday, May 04, 2022, 07:54: PS main shutoff. IG1 & Turbo pumps off.

https://elog.triumf.ca/TIS/Test-Stand/919

Vacuum Group LD#1

(A) Top feed through fittings upgraded

Thursday, April 21, 2022, 13:11: Pumping directly on FS#4-Line A (TBHT). Leak rate @ 0.0E-07 atm-cc/sec.

Thursday, April 21, 2022, 13:13: Sprayed He on Block (A) & the TBHT solder joints. No signal change.

(B) Top feed through fittings upgraded.

Thursday, April 21, 2022, 13:39: Pumping directly on FS#4-Line B (TBHT). Leak rate @ 0.0E-07 atm-cc/sec.

Thursday, April 21, 2022, 13:42: Sprayed He on Block (A) & the TBHT solder joints. Dips up to a Leak rate @ 0.1E-07 atm-cc/sec & back to 0.0.

Disconnect LD. Will need to pressurize w/ He.

Thursday, April 21, 2022, 14:09: Pressurize FS#4-Line B (TBHT) to 50 PSI.

Thursday, April 21, 2022, 14:20: False positives. Saturated the area w/ He. LD off & lines depressurized.

Tuesday, April 26, 2022, 11:14: Leak rate @ 0.0E-07 atm-cc/sec. (No He)

Tuesday, April 26, 2022, 11:15: Pressurize FS#4-Line B (TBHT) to 120 PSI.

Tuesday, April 26, 2022, 11:20: Checked TBHT solder joints & water block (B). Leak rate @ 0.0E-07 atm-cc/sec. Disconnect, purge, & swap fittings to (A)

Tuesday, April 26, 2022, 11:31: Pressurize FS#4-Line A (TBHT) to 120 PSI. Leak rate @ 0.0E-07 atm-cc/sec

Tuesday, April 26, 2022, 11:38: Checked TBHT solder joints & water block (A). Leak rate @ 0.4E-07 atm-cc/sec on the water block.  Disconnect, purge.

Wednesday, April 27, 2022, 10:38: Indium gasket installed on FS#4-Line A water block.

Wednesday, April 27, 2022, 10:43: Leak rate @ 0.0E-07 atm-cc/sec. (No He)

Wednesday, April 27, 2022, 10:44: Spiked as soon as He was applied.

Wednesday, April 27, 2022, 11:14: Line A removed.

Wednesday, April 27, 2022, 11:40: Line A reinstalled after inspection w/ new Indium gasket fitted. Gasket only. No C-Seal.

Wednesday, April 27, 2022, 11:44: Leak rate @ 0.0E-07 atm-cc/sec. (No He)

Wednesday, April 27, 2022, 11:46: Spiked as soon as He was applied.

Wednesday, April 27, 2022, 11:53: New Indium gasket fitted. Gasket only. No C-Seal.

Leak rate @ 0.0E-07 atm-cc/sec. (No He)

Wednesday, April 27, 2022, 11:54: Pressurize to 30 PSI. Leak rate @ 0.0E-07 atm-cc/sec

Wednesday, April 27, 2022, 11:57: Pressurize to 50 PSI. Leak rate gradually increased to the (X)E-05 atm-cc/sec range.

Multiple leak checks & gasket attempts Thursday.

Monday, May 02, 2022, 09:45: Indium gasket installed w/ 90-100 inch pounds of torque. Used a heat gun up to 90. Allowed to cool, then given one more tightening.

Monday, May 02, 2022, 09:57: Leak rate @ 0.0E-08 atm-cc/sec. (No He) using the sniffer.

Monday, May 02, 2022, 09:59: Initial leak rate @ 0.0E-08 atm-cc/sec. (w/ 120 PSI He)

Monday, May 02, 2022, 10:11: Leak rate @ 0.0E-08 atm-cc/sec. (w/ 120 PSI He).

Monday, May 02, 2022, 10:20: BV1B open. Rouging

Monday, May 02, 2022, 10:22: BV1A open.

Monday, May 02, 2022, 11:51: TP1B on.

Monday, May 02, 2022, 11:57: TP1A on.

Monday, May 02, 2022, 12:05: IG1 on.

Monday, May 02, 2022, 12:10: Vacuum @ 4.19e-05T & dropping.

Monday, May 02, 2022, 13:59: Vacuum @ 1.33e-05T

Monday, May 02, 2022, 14:04: FS#4 open. Vacuum @ 1.33e-05T. Stable. No immediate Spike.

Monday, May 02, 2022, 14:05: FS#2 open. Vacuum @ 1.33e-05T.

Monday, May 02, 2022, 14:06: FS#3 open. Vacuum @ 1.33e-05T.

Monday, May 02, 2022, 14:09: FS#5 open. Vacuum @ 1.33e-05T. Stable.

Aurelia to do a visual test later.

Wednesday, April 20, 2022, 13:41: IG6 Off. TP6 & TP2 off.

Tests by AL were complete. Installed a fresh gasket on the rear window.

Thursday, April 21, 2022, 12:04: BV6 open. Roughing.

Thursday, April 21, 2022, 12:06: BV2 open.

Thursday, April 21, 2022, 12:11: TMS:TP6 on.

Thursday, April 21, 2022, 12:15: TMS:TP2 on.

Thursday, April 21, 2022, 12:16: TMS:TP6 Green.

Thursday, April 21, 2022, 12:20: TMS:TP2 Green.

Wednesday, April 13, 2022, 07:38: Appears to have a water leak. Vacuum @ 8.48e-06T. All power / sources shut off. (Had already tripped).

Wednesday, April 13, 2022, 07:44: All waterlines closed. Water leak confirmed. Vacuum dropped to 2.33e-06T.

Wednesday, April 13, 2022, 08:23: Vacuum @ 2.06e-06T.

Wednesday, April 13, 2022, 08:28: Open FS#2. Vacuum @ 2.06e-06T.

Wednesday, April 13, 2022, 08:34: Vacuum @ 2.06e-06T. Open FS#3. Vacuum @ 2.06e-06T.

Wednesday, April 13, 2022, 08:39:. Open FS#4. immediate spike to 2.57e-06T.

Wednesday, April 13, 2022, 08:44: All lines closed & purged.

Wednesday, April 13, 2022, 08:47: Opened FS#4 w/ added air pressure (40 PSI). Immediate spike noticed.

Wednesday, April 13, 2022, 08:50: FS#5 Pressurized. No change. Leak appears on FS#4.

Wednesday, April 13, 2022, 08:51: IG1 & Turbo pumps off.

Monday, April 11, 2022, 13:58: Controller for TP6 is dead. Literally smokes if you try to use it.

Monday, April 11, 2022, 14:51: TP6 Controller is replaced. TP6 on.

 Gas system switched on manually to use Ar & calibrated leak.

Thursday, April 07, 2022, 10:25: Roughing. 

Thursday, April 07, 2022, 11:17: TP1B on.

Thursday, April 07, 2022, 12:55: TP1A on.

Thursday, April 07, 2022, 14:42: SV5 on. Power /  sources on.

Thursday, April 07, 2022, 14:44: IV4 open. Optics on. Vacuum @ 2.7e-06T.

Thursday, April 07, 2022, 14:47: System check:

TGHT / TBHT @ 10 A. Coil @ 10A.

BIAS /  EE / EZL @ 1 / -0.5 / 1 kV. Anode @ 50V

OK. Set.

Thursday, April 07, 2022, 14:49: Auto-ramping TGHT / TBHT to 350 / 150 A @ 2 A per min.

Thursday, April 07, 2022, 14:51: BIAS /  EE / EZL @ 0 kV. Anode @ 0V

Friday, April 08, 2022, 05:44: Auto-ramping TGHT / TBHT to 500 / 200 A @ 2 A per min.

Friday, April 08, 2022, 05:51: BIAS / EE / EZL @ 20 / -1.0 / 7.5 kV.

Coil @ 20 A, Anode @ 100 V.

Friday, April 08, 2022, 10:01: Auto-ramping TGHT / TBHT to 580 / 270 A @ 2 A per min.

BIAS / EE / EZL @ 30 / -1.5 / 13 kV.

Friday, April 08, 2022, 11:15: TBHT @ 290 A. 

Friday, April 08, 2022, 12:09: Mass & wire scans complete. HV to 0kV. Anode to to V. Auto cooling @ 1 A per min. Coil @ 0 A. 

Monday, April 11, 2022, 07:25: Auto-ramping TGHT /TBHT to 580 / 290 A @ 2 A per min.  

Monday, April 11, 2022, 13:48: BIAS / EE / EZL 30 / -1.5 / 13 kV. Mass & wire scans started.

Wire scans good.

Monday, April 11, 2022, 13:58: Controller for TP6 is dead. Literally smokes if you try to use it.

Monday, April 11, 2022, 14:05: HV to 0 kV / Off. IV4 closed. Anode & Coil to 0.

Tuesday, April 12, 2022, 07:14: Vacuum instability noted. 2 spikes to 4.6e-06T. Back to 2.48e-06T. BIAS / EE / EZL 30 / -1.5 / 13 kV. IV4 opened. Coil to 10 A. Anode to 100 V Optics standard tune set.

Mass & wire scans started.

Tuesday, April 12, 2022, 08:16: FM tune used. Mass & wire scans ok. Minor vacuum instability continues. Begin auto-cooling @ 2 A per min.

Tuesday, April 12, 2022, 08:27: Coil, Anode off. HV off. Closed SV5. Closed IV4

Tuesday, April 05, 2022, 13:57: Roughing. BV1B.

Tuesday, April 05, 2022, 14:04: BV1A on.

Tuesday, April 05, 2022, 14:28: TP1B on.

Tuesday, April 05, 2022, 14:36: TP1A on.

Tuesday, April 05, 2022, 14:46: IG1 on.

Wednesday, April 06, 2022, 07:42: Vacuum @ 2.50e-06T.

Wednesday, April 06, 2022, 07:44: Waterlines opened. Vacuum Remains stable.

Wednesday, April 06, 2022, 07:59: Cage fully closed up. Power/sources on.

Wednesday, April 06, 2022, 08:00: COIL / TGHT / TBHT @ 10 A manually. Check - Ok.

Wednesday, April 06, 2022, 08:02: Anode @ 50V - Ok.

Wednesday, April 06, 2022, 08:04: BIAS / EE / EZL @ 1 / -0.5 / 1 kV. Check - Ok.

Wednesday, April 06, 2022, 08:10: BIAS / EE / EZL @ 10 / -1 / 10 kV.

Wednesday, April 06, 2022, 08:16: BIAS / EE / EZL @ 30 / -1.5 / 13 kV. Ok. Vacuum @ 2.39e-06T.

Wednesday, April 06, 2022, 08:46: 1/2 hour. Stable.

Wednesday, April 06, 2022, 08:50: All sources off. PS off. Open Cage.

Wednesday, April 06, 2022, 08:54: Begin cycling source gas control.

Wednesday, April 06, 2022, 08:57: SV5 open.

Wednesday, April 06, 2022, 08:58: SV3 & SV4 open. Vacuum stable @2.32e-06T.

Wednesday, April 06, 2022, 09:02: Cage closed. Sources / PS  on. IV4 open.

Wednesday, April 06, 2022, 09:04: Auto-ramping TGHT / TBHT to 350 / 150 @ 2 A per min.

Wednesday, April 06, 2022, 09:05: Anode @ 50 V. Coil @ 10 A.

Wednesday, April 06, 2022, 09:10: Optics set.

Wednesday, April 06, 2022, 11:37: Gas lines closed. Abort ramping. TGHT / TBHT @ 306 / 150 A. HV lockout. Open cage.

***Gas bottles are not in the old configuration*** No gas.

Wednesday, April 06, 2022, 11:50: Begin Auto-cooling @ 2 A per min.

Thursday, April 07, 2022, 08:13: IG1 off. Turbo pumps off. Power off. 

Thursday, April 07, 2022, 09:17: Venting. 

Wiring which was changed to run the mass marker tests has been reverted:

• anode bias cable connected to "B"
• tube negative attached to HV common through "B" to "F" connection

Ready for cathode biased FEBIAD operation.

Swapped the old 9pin connectors out and replaced with 2 5-pin connectors, same as on the modules.

See attached for current pin out diagram. Many of the wires are too short to reach the bottom sockets, so wires 2, 8, 9 are not connected in the connector. 4 spots are empty on connector 2 (right).  (6, 7) and (4, 5) are twisted pairs. Unused wires are tapped up out of the way, but we should improve this, the tape may come loose due to heat and then the wires could present an HV risk. (Update: added some wire to hold them in place. Slightly better...)

Need to either extend the wires, or put in new ones. All wires are grounded on the rack.

In addition, there are two screws in each connector which are floating right now. Need to make a connection for them but should be ok if we dont go to really high voltages.

3rd version of the mass marker target has been installed. This one is further back on the heat shield, and has a longer ceramic piece attached. There are three thermocouples as follows:

Monday, March 21, 2022, 13:55 : Roughing down.

Monday, March 21, 2022, 16:45 : Turbos have been on for a few hours. Starting water.

Monday, March 21, 2022, 17:20 : Only TC1 has to be tested with heating and maybe swapped if it is the wrong way around. Otherwise ready to go.

Thursday, March 24, 2022, 10:51 : Ramping up heaters to test thermocouples.

AS:

Monday, April 04, 2022, 09:10: Power locked out. IG1 & Turbo pumps off. HV top cage removed.