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.

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.

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.

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 

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

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.

Monday, June 20, 2022, 11:49: Water line loop installed. Roughing.

Thursday, June 23, 2022, 09:25: Venting.

Thursday, June 30, 2022, 13:46: Roughing.

Thursday, July 07, 2022, 15:00: Venting.

No UCx target installed. Straight / blank oven in use for out gassing.

Thursday, July 07, 2022, 16:50: Roughing.

Thursday, July 07, 2022, 16:53: BV1A Open.

Thursday, July 07, 2022, 17:31: TP1B on.

Thursday, July 07, 2022, 17:36: TP1A on.

Thursday, July 07, 2022, 17:46: IG1 on. Vacuum @ 2.31e-05T

Thursday, July 07, 2022, 17:47: Waterline FS#5 Opened. Vacuum @ 2.05e-05T & continuing down.

Thursday, July 07, 2022, 18:00: Bypass on IG1. 10A TGHT Check. Ok. Back to 0A. Removed bypass. Ready for remote operation.

Friday, July 08, 2022, 10:44: Started autoramping TGHT 580A/TBHT 0A

Friday, July 08, 2022, 15:37: Autoramping complete

Saturday, July 09, 2022, 07:34 : ramp down started

Sunday, July 10, 2022, 22:14: IG1, TP1B & A off. TP6 has tripped. Sources off.  
 

 Sunday, July 10, 2022, 22:19: A trip was noted on TP2. the backing pressure is quite high. Shutting off the turbo pumps for the beamline side.

Monday, July 11, 2022, 06:01: Venting.

Monday, July 11, 2022, 08:12: RP1 off.

Monday, July 11, 2022, 09:01: RP changed. SN#LPA49885

Monday, July 11, 2022, 09:02: Down to 0.032T Fast. TP2 & TP6 on.

Monday, July 11, 2022, 09:08: Pumps up to speed. IG6 on.

Monday, July 11, 2022, 09:15: Roughing.

Water loop installed.

Thursday, September 29, 2022, 13:50: Roughing

Tuesday, October 18, 2022, 11:17: Venting

genepicsas.triumf.ca

x11 enabled.

Then use login credentials.

Wednesday, October 19, 2022, 12:10: Login. Success

Monday, November 07, 2022, 13:13 Use ATTS on putty page.

New ramping program:

Monday, November 07, 2022, 13:15: Auto-ramping TGHT /  TBHT to 20 A @ 4A per minute. (Testing new auto-ramp)

Monday, November 07, 2022, 13:19: Ramping complete:

Heated up sample 01 for the second time and measured the temperature with increasing current. Used pyrometre to measure temperature and calibrated it with the emmissivity values from cassidy

 See elog 944

Wednesday, November 16, 2022, 13:23: TP1 A replaced

Wednesday, November 16, 2022, 13:25: Roughing.

Wednesday, November 16, 2022, 14:53: TP1B on

Wednesday, November 16, 2022, 14:56: TP1B at speed.

Wednesday, November 16, 2022, 14:58: TP1A on.

Wednesday, November 16, 2022, 15:07: TP1A at speed. IG1 on. Vacuum @ 3.32e-05T

Sam G. & Navid N.

Work Permit# C2022-11-23--1

Wednesday, November 23, 2022, 13:51 FS#5 on (HS bypassed with a water loop)

Wednesday, November 23, 2022, 13:55: TSG:IG1 Bypass on

Wednesday, November 23, 2022, 14:03: Signage up. Main breaker on.

Wednesday, November 23, 2022, 14:07: FS#5 off & purged. Not needed.

 Wednesday, November 23, 2022, 15:01: measured magnetic field of coil at 8A

end test

 Monday, November 28, 2022, 11:45: start test set up the hall probe with the jig to move it on the table and centered the hall probe in the magnet. signage up Main breaker on

Monday, November 28, 2022, 13:17: start collecting data at 8 amps

Monday, November 28, 2022, 16:11: end test

 Tuesday, November 29, 2022, 10:50:Signage up Main Breaker on Testing started; with current of 8 amps

Taking measurements of temperature at 8A 9A and 10A

Tuesday, November 29, 2022, 15:25 : system locked out and took out magnet

end test

Wednesday, November 30, 2022, 12:40: Test started. Breaker on. signage up. put in low profile magnet with wire ties to keep coils together.

taking data with 8A of current

Wednesday, November 30, 2022, 16:25: end of test power supply off breaker off

 Monday, December 05, 2022, 15:38: Source Tray TGHT & TBHT insulators replaced. 

Torqued @ 75 in-lbs. (Reference image attached)

Monday, December 19, 2022, 12:06 : Tomislav changed the polarity of the anode power supply last week and everything has been closed up again. The anode wire was switched to feedthru J and the short there removed. Forgot to put the short on the tube before closing the top but it should be ok for these tests since it has the resistor still installed to keep it at some potential. Pumping out gas lines.

Monday, December 19, 2022, 12:46 : Anode voltage ramped to 500V no problems. BIAS\EE\EL at 30kV\-1kV\13kV. Starting heaters ramping to TGHT=600A TBHT=290A.

Tuesday, December 20, 2022, 08:23 : Cancelled heater ramp at 500A yesterday, resuming now.

Wednesday, December 21, 2022, 14:48 : Everything ramped down

Friday, January 06, 2023, 09:27: Turbo pumps off. - AS 

Source and beamline power supplies turned off in EPICS

HV cage power off

Magnet ramped down and power supplies turned off manually (bira and tdk lambda)

VME crates and kepco turned off

Water lines closed

Will turn off pumps remotely later. Left PLC on

Easy recovery after power outage, just had to power cycle the ground PLC IOC and the BiRa IOC.

Test stand vacuum currently pumping down again. Water and HV elements still off.

Tuesday, January 03, 2023, 11:13: Reset IG6 - Filament 2. Vacuum 7.22e-06T - AS

Tuesday, January 03, 2023, 14:00: Both Turbo pumps on.

Tuesday, January 03, 2023, 14:27: Vacuum @ 2.32e-06T

Tuesday, January 03, 2023, 14:28: FS#2 opened. Vacuum ok.

Tuesday, January 03, 2023, 14:29: FS#3 opened. Vacuum ok.

Tuesday, January 03, 2023, 14:30: FS#4 opened. Vacuum ok.

Tuesday, January 03, 2023, 14:31: FS#5 opened. Vacuum ok. Stable @ (2.24-2.32)e-06T. - AS