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.

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

ISAC Test Stand FEBIAD Ion Source and ISACT optics screen grabs before practicing tuning.  Tune saved as: data/febiaddata/tune/120228-1620_0.snap and data/isactdata/tune/120228-1620_0.snap respectively.<br>

Seeing 1.93e-06 on TMS:FC0 and 3.30e-09 on TMS:FC6.

Friday, May 17, 2024, Spare FEBIAD Development target installed

Friday, May 17, 2024, 17:00: Roughing

Friday, May 17, 2024, 17:38:  TP1B started.

Friday, May 17, 2024, 17:43 TP1B Green. OK.

Friday, May 17, 2024, 17:46 : TP1A on.

Friday, May 17, 2024, 17:54 : TP1A Green. OK.

 Tuesday, May 21, 2024, 09:47 :   TP1A and TP1B switched off. Source tray calibrated leak to be removed.

 Tuesday, May 21, 2024, 10:13 :   VV1 open for venting to atmospheric pressure.

Tuesday, May 21, 2024, 11:26 :  Source tray calibrated leak removed, target calibrated leak connected to gas line. Chamber closed, roughing valves open. Roughing down.

 Tuesday, May 21, 2024, 12:02  TP1B on

Tuesday, May 21, 2024, 12:04: TP1A on. 

 Tuesday, May 21, 2024, 15:12  gradually raising BIAS/EL/EE voltages to 50kV/25kV/2kV.

Tuesday, May 21, 2024, 15:58  increasing BIAS to 50+kV, watching for sparks.

Tuesday, May 21, 2024, 16:38: voltage stable at 55kV. after 10 minutes, of high voltage with no sparks, dropping the voltages to 0V.

Wednesday, May 22, 2024, 11:36:  increasing voltage BIAS/EL/EE to 30kV/15kV/1.5kV.

Wednesday, May 22, 2024, 11:56 gradually increasing COIL to 80A, letting vacuum recover as necessary. 

Wednesday, May 22, 2024, 13:31:  COIL to 90A, recovering vacuum.

 Wednesday, May 22, 2024, 16:58 increasing TGHT TBHT to 440A/290A at 1A/30s. reducing COIL to 0A and voltages to 0V overnight

Thursday, May 23, 2024, 11:14 :  increasing voltage BIAS/EL/EE to 30kV/13kV/1.5kV.

Thursday, May 23, 2024, 11:33:  Sensor on beam line vacuum TMSIG6 not working. reports bad vacuum, despite both TMSTP6 TMSTP2 running at full speed. Likely that vacuum is at appropriate level.

Thursday, May 23, 2024, 11:35: turning on optics and confirming correct tune.  --- cannot do this due to interlock on TP6.  investigating problem. -- switched to filament 2 on control panel

Thursday, May 23, 2024, 13:14:  after setting magnet to argon-40, running degaussing script for coil / anode optimization  - measure_id= 6220.  heat map at bottom. . optimal point at 120V 40A (local maximum)

Thursday, May 23, 2024, 13:45:  allowing vacuum to recover after scan. vacuum during scan was approximately 4e-6 T

Thursday, May 23, 2024, 13:57 running mass scan with gas on -  2024-05-23-14-25 LP FEBIAD backup leak 1.txt

Thursday, May 23, 2024, 14:29 mass scan gas off (purged) - 2024-05-23-15-03 LP FEBIAD backup leak 2.txt

Thursday, May 23, 2024, 15:04   increasing tght tbht to 490A 320A 

Thursday, May 23, 2024, 15:26:  when at TGHT TBHT = 461A/313A, the anode power supply began current limiting (shorted to hvc)

Thursday, May 23, 2024, 15:28  cooling to 460A/310A

Thursday, May 23, 2024, 15:35  cooling to 450A/300A 

 Thursday, May 23, 2024, 15:44  stopped cooling at 455A/305A as the anode became UNshorted.

Thursday, May 23, 2024, 16:19  mass scan with gas off - 2024-05-23-16-18 LP FEBIAD backup leak 3.txt

Thursday, May 23, 2024, 16:21   gas on - mass scan -  2024-05-23-16-51 LP FEBIAD backup leak 4.txt

Thursday, May 23, 2024, 16:52 :  increasing TGHT TBHT again to test anode shorting threshold:  - shorted at: 458A/308A.  then decreased to 450A/300A, did not UNshort until after a few minutes at that current.  shorted when increased to 456/306

Thursday, May 23, 2024, 17:22   decreasing voltages to 0V

 Thursday, May 23, 2024, 11:14 :  increasing voltage BIAS/EL/EE to 30kV/13kV/1.5kV.

 Tuesday, May 28, 2024, 12:59  cooling target to 0A. will remove target to attempt fix on anode short.

 Tuesday, May 28, 2024, 17:17   TGHT TBHT at 0A. TP1A and TP1B 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.

42972-5 Base / 42972-9 Lid

Tuesday, November 05, 2024, 16:30: Roughing. 

Tuesday, November 05, 2024, 17:04: TP1B on.

Tuesday, November 05, 2024, 17:13: TP1A on.

Tuesday, November 05, 2024, 17:21: IG1 on @ 2.41e-05T 

Wednesday, November 06, 2024, 10:35: Vacuum @ 5.75e-07T. Waterline FS#5 open. 

Wednesday, November 06, 2024, 16:24: TGHT/TBHT ramping to 580/230A at 2A/min

Thursday, November 07, 2024, 09:16:  Increasing BIAS/EE/EZL to 30/2.5/13 kV slowly

Thursday, November 07, 2024, 11:26:  as expected, no beam out to FC0. slowly increasing to bias to 45kV alongside ezl to 28kV

Thursday, November 07, 2024, 11:27:   TGHT dropped out for 1s. Did not register a trip or anything. simply jumped down to 0A and immediately recovered.

Thursday, November 07, 2024, 14:40:   At 45kV, there were no sparks noticed. The target assembly was brought down to 0V and ramped down to 0A/0A at -2A/min  

Wednesday, November 13, 2024, 09:15: PS Off. TP off - AS. 

Wednesday, November 13, 2024, 11:26: VV1 opened - BB. 

Started the HV conditioning: TSG:BIAS=30kV and TSH:EE=-700V.

Heaters conditioning went fine: 580A and 230A.

Did a mass scan:

Plotdump-local-clean.txt Sept19 11 12-45-22.txt

Set for Li-7 for over the night on TMS:FC6.

Tuesday, September 20, 2011:

Did another mass scan today at 5:40. Saved as: plotdump-local-clean.txt Sept 20 11 11-51-20.txt

Started target cool-down. Tomorrow the target would be ready to be removed from the Test Stand.

Wednesday, September 21, 2011:

Turned off the HV & optics.

Target is ready to be removed. Currently, it's under vacuum and the water is still on.

Started the HV conditioning: TSG:BIAS=30kV

Started the heaters conditioning: TGHT up to 580A and TBHT up to 230A.

Today, did a did a mass scan: plotdump-local-clean.txt Sep30 11 12-20-08.txt

Optimized a bit the tune with Friedhelm, then started the Target Cooldown.

Turned off the HV and locked up the transformer. Isolated the ion source box. The target is under vacuum and the water is still on.

Evgeniy rebooted the ISAC Test Stand IOC. Re-started EPICS at the Test Stand.

Found all 4 turbo pumps off and their backing valves closed. Re-started the pumps.

In January Controls will install a new firewall for ISAC Test Stand. Until then ISAC Test Stand can be used, but it may require an IOC reboot once in while.

Started both ISACT and SOURCES Archivers.

Did a local IOC reboot to cure to white-out. The test stand is now operational.

Rick and John installed the ITE-TM4-SiC#27-HP-SIS-May2012 in the Test Stand. Pumping down.