Wednesday, January 12, 2022, 16:08 : HV ramped to 30kV, EZL=15kV, EE=-1.5kV

Ramping up to 250A on TGHT, 200A on TBHT. See MassMarkerTest#1 for ramp up values of the thermocouples.

Seeing some beam on FC0, changing magnet settings to Cs to check FC6 then will ramp up.

Thursday, January 13, 2022, 14:22 :  1.3e-10 approximately Cs on FC6. Optimal EE -2700V, slightly higher than standard on EZL.

 Ramping down to Na on the magnet, found 5 pA:

 Started a ramp up to nominal heater values (TGHT-500 A  TBHT-230 A) but too much HV sparking so aborted at TGHT-299 A and TBHT-230 A. Ramped HV down to 16kV to get sparking to slow down.

Ramped quickly back up to 30kV to get FC readings but since there is so much sparking, we decided to ramp everything down and open the vacuum chamber.

PLAN:

1. ramp down heaters, vent vacuum, open chamber.

2. Try to tape the thermocouples up so that they are further from ground.

3. Try to crimp the bottom of the mass marker tubes, and bend them upwards so they aren't facing ground.

4. Add a dedicated ground to the COIL power supply.

From Fernando:

---

Monday, January 17, 2022, 09:52: IG1 on. Source PS off. HV Cage removed. - AS
Monday, January 17, 2022, 11:11: Cage on. TGHT/TBHT PS on. - AS

Monday, January 17, 2022, 11:23: PS/ Sources on. - AS

Monday, January 17, 2022, 14:00: HV ramped to 20kV, EZL 10kV, EE, -1500V. Ramping TGHT/TBHT to previous values of 250A/200A.

Monday, January 17, 2022, 16:51 : Back to previous heater values, didn't find any Cs on FC6 so went to Na. Tuned and found the tune the opposite of last time, all voltage wanted to go lower. Found 736pA, maybe better than last time because I tuned quite a bit.

Monday, January 17, 2022, 18:00: Ramping to TGHT 300A, TBHT 230A, where we had sparking problems last time.

Monday, January 17, 2022, 18:17 : So far no sparking issues so I will start to heat up the mass markers. One spark about 4 mins after ramping up, after that maybe 10 sparks/40mins or so. Too many....

Monday, January 17, 2022, 19:20 : Got to 20A on the mass markers, will ramp down now.

Friday, January 28, 2022, 18:49 : Yesterday opened the HV rack to re-start data logging on the thermocouples. This morning ramped everything up and started the heaters. Found the Na current around 250A on the target, but abandoned looking for it because the TGHT heating was causing lots of outgassing, which was causing bias sparks. In addition, there is a weird effect where the Na current spikes, then slowly decreases over the course of an hour or something, to values lower than before the heating. Could this be an indication of some thermal issues, like cold spots where things condense? Or something is drifting. The HV common point on the target is at the mass markers now instead of at the exit of the ion source, but I can't imagine you would see such a large difference. The thermocouples do not change in value during these long slow declines. In light of this, decided to just go up and see what the thermocouples read. Settings were close to what is shown above - bit lower on the HV but magnet the same.

Monday, January 31, 2022, 16:23: Power/sources off. Thermocouple reader off. HV rack open. -AS

Wednesday, February 02, 2022, 07:36: IG1 & Turbo pumps off.  - AS

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.

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.

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. 

Tuesday, March 11, 2025, 14:36 Roughing. Target installed.

Tuesday, March 11, 2025, 15:06 TP1B turned on.

Tuesday, March 11, 2025, 15:10 TP1A turned on. 

Tuesday, March 11, 2025, 15:18 IG1 Turned on 6.25e-05T 

Tuesday, March 11, 2025, 16:39 Turned water on. Started autoramping TGHT/TBHT to 580/230A at 1A/30s

Wednesday, March 12, 2025, 11:03  slowly ramping BIAS/EE/EZL to 30/2.5/13 kV 

Wednesday, March 12, 2025, 14:00 no beam seen out. It seems that FC0 is working though. Investigation needed

Wednesday, March 12, 2025, 16:00 decreased HV to 0 to investigate. See report (to be released and attached) for more information

Friday, March 14, 2025, 09:20 :  increasing TGHT TBHT to 100A at 1A/30s, then to 580/230A at 1.7A/10s. 

Friday, March 14, 2025, 11:31 increasing BIAS/EE/EZL to 30/2.5/13 kV 

 Friday, March 14, 2025, 12:57    it appears that everything is stable. FC0 = 3.6e-10 A (VQSX).  beginning mass scan.  mass scan saved as '2025-03-14-13-30 MM a 0A.txt'

Friday, March 14, 2025, 14:12 mass separator focused at mass 115 to visualize indium.

Friday, March 14, 2025, 14:12  increasing MM current, following mass peak.

__ Current __ FC6 output __

    0A        1.9e-11

    1A        2e-11

    2A        2.22-11

    3A        4.6e-11

    4A        5.9e-10

    5A        3.6e-9

    6A        8.6e-9

 Friday, March 14, 2025, 14:39  conducting mass scan.   '2025-03-14-15-20 MM b 6A.txt'   after the scan, it was noticed that the mm current had failed at some point during the scan.

Friday, March 14, 2025, 15:27   conducting mass scan with 0A mm current.  saved as 2025-03-14-15-55 MM c 0A.txt

Friday, March 14, 2025, 15:55 ramping down HV

Friday, March 14, 2025, 15:56 ramping down TGHT TBHT to 0 (1A/30s) to assess and correct mm OL issue

Tuesday, March 18, 2025, 14:49 After bringing down vacuum to open test stand, the mass marker connection has been investigated. Two multipin connections have become disconnected, seems to be at a soldered junction.

Tuesday, March 18, 2025, 14:51    MM has been moved to different pins for operation. multipin will be fixed at a later date. Now test stand has been vacuumed down and TGHT TBHT brought to 580 230 for measurement.

Tuesday, March 18, 2025, 14:51 MM temperatures:

MM current    _____    temperature:

0A ___ 195.8°C

1A ___ 198.1

2A ___ 223.7°C

3A ___ 282.1°C

4A ___ 370.1­­­°C

5A ___ 486.4°C

6A ___ 631.6°C

Tuesday, March 18, 2025, 16:17 cooling TGHT TBHT at -1A/30s to 0A

Wednesday, March 19, 2025, 16:30 :  Mass marker replaced - new ceramic oven and sleeve, new reservoir with Indium - 0.102g.  Same transfer tube and target assembly

Wednesday, March 19, 2025, 16:45:  Install complete, roughing vacuum

Wednesday, March 19, 2025, 17:07  Turbopumps on

Thursday, March 20, 2025, 10:00 :  Water cooling on. Increasing TGHT TBHT to 580 230 at 1A/30s.

Thursday, March 20, 2025, 12:00 :  at ~200A 200A, increased heating rate to 1A/10s

Thursday, March 20, 2025, 13:45 increasing HV BIAS/EE/EZL to 30/2.5/13 kV 

Thursday, March 20, 2025, 14:32   at HV now, stable. Beginning mass scan.    

 Thursday, March 20, 2025, 15:15  magnet positioned at mass 115

Friday, March 21, 2025, 11:08   Temperature testing

Current ___ Temperature

0A     184.5

1A     187.2

2A     208.3

3A     268.7

4A     374.1

5A     419.2

6A     495.8

 Friday, March 21, 2025, 12:09   cooling TGHT TBHT at 1.7A/10s to make Faraday cage accessible for controls work

                           decreased cooling rate to 1A/20s for final 100A. at 14:00, test stand was opened for controls work.

Wednesday, March 26, 2025, 10:08   Turbo pumps switched off for venting and changing the mass marker reservoir

Wednesday, March 26, 2025, 18:01  Chamber opened, MMR replaced with MMR3, roughed, now turbopumps on.

Thursday, March 27, 2025, 12:38 TGHT TBHT brought up to 580 230 at 1A/30s for 100A and then 1.7A/10s for the rest. now increasing  HV BIAS/EE/EZL to 30/2.5/13 kV 

 Thursday, March 27, 2025, 13:58    at high voltage, beginning mass scan.   (h)

Thursday, March 27, 2025, 14:37    Magnet at 115, measuring beam output with increases of MM current

current ___ FC6 output

0A    8.2e-11

1A    8.2e-11

2A    8.6e-11

3A    1e-10

4A    1.88e-10

5A    5e-10

6A    8.7e-10

Thursday, March 27, 2025, 15:26 beginning mass scan at MM 6A. --- MM Current failed at the beginning of the mass scan. data still collected - indium peak lower than expected due to gradual cooling. mass scan saved (i) 2025-03-27_15-32 mm i 6A-0A.txt

Thursday, March 27, 2025, 15:33   cooled 0A mass scan beginning - (j) 2025-03-27_16-13 mm j 0A.txt

Thursday, March 27, 2025, 16:32  decreasing HV to 0

Friday, March 28, 2025, 09:13  spinning down turbo pumps to vent system. Must *begin* to repair/replace the multipin connection. - will affix twisted pair to two appropriate channels for IGLIS AC

Tuesday, April 08, 2025, 12:26   spinning down turbo pumps 

 Wednesday, April 09, 2025, 15:36  Twisted pair wire shielded, routed and crimped for iglis and high(er) current purposes. multipin channels 8 and 9.

                 roughing.

 Wednesday, April 09, 2025, 16:26   turbo pumps on

Thursday, April 10, 2025, 09:43    beginning heating - TGHT TBHT to 580 230 at 1A/30s

Thursday, April 10, 2025, 10:41     at 100A100A. increasing ramp rate to 1.7A/30s

Thursday, April 10, 2025, 11:39 increasing HV BIAS/EE/EZL to 30/2.5/13 kV 

 Thursday, April 10, 2025, 14:49   mass scan at 8A. Frequent sparking, ~1/min but doesn't appear to be affecting anything. no affect on optics or power supplies.  appears to be inside TS chamber as well.   mass scan saved (l 8A) 2025-04-10_15-04 mm l 8A.txt

Thursday, April 10, 2025, 14:50   MMR current decreased to 6A. waiting to cool to begin mass scan. sparks have stopped .

Thursday, April 10, 2025, 15:08  beginning mass scan.  (m 6A)  saved. 2025-04-10_15-34 mm m 8A.txt

Thursday, April 10, 2025, 15:34  MMR current 0A. repeat mass scan after cooled. (n 0A) saved.  2025-04-10_16-10 mm n 0A.txt

Thursday, April 10, 2025, 16:02 voltages to 0 for temperature testing

Current ___ Temperature

0A    205     

1A     205.5 

2A     227    

3A     268    

4A     327    

5A     391    

6A     462      

7A     546

8A      645.6

Thursday, April 10, 2025, 16:51    cooling TGHT TBHT at 1A/30s

 Friday, April 11, 2025, 09:00  spinning down turbo pumps to vent chamber. must replace source cup (p2n style --> old style)

Friday, April 11, 2025, 09:56  opened VV1 to begin venting the chamber. 

Friday, April 11, 2025, 15:39    P2N source cup removed, old source cup installed for repeat test. roughing chamber now.

 Friday, April 11, 2025, 16:05   turbo pumps on

Monday, April 14, 2025, 09:43  Water cooling on. TGHT TBHT ramping up at 1A/30s to 580A/230A

Monday, April 14, 2025, 12:57 increasing HV BIAS/EE/EZL to 30/2.5/13 kV 

Monday, April 14, 2025, 16:53   This trip has caused some sort of communication issue with the TGHT, This caused TGHT to be 'stuck' at 580A. I had to eventually cut power to the supply and have power cycled it. have not been able to restore power to it remotely

Fixed TGHT. Was able reset it locally after opening the cage.

Tuesday, April 15, 2025, 08:06   Turbo pumps off to vent, remove target and examine. 

Tuesday, April 15, 2025, 08:43   VV1 open 

Tuesday, April 15, 2025, 11:22   Target opened, taken apart, examined. Appears that the MMR transfer line had become dislodged from the target block, preventing transfer. Fixed this, reassembled, put back in TS.

Tuesday, April 15, 2025, 11:23  roughing.

Tuesday, April 15, 2025, 12:00  turbo pumps on.

Tuesday, April 15, 2025, 13:23  water cooling on. no effect on vacuum

Wednesday, April 16, 2025, 09:37 ramping TGHT TBHT 

Wednesday, April 16, 2025, 12:46  increasing HV BIAS/EE/EZL to 30/2.5/13 kV

Wednesday, April 16, 2025, 14:47 HV BIAS /EZL has been sparking occasionally, so increase has been slow

Wednesday, April 16, 2025, 15:05   mass scanning - 0A MMR. 

Wednesday, April 16, 2025, 15:07    spark external to TS (audible) tripped IG1 and shut down all power supplies. error thrown by TGHT as before.. cannot reset remotely. must discuss this error with controls.

Wednesday, April 16, 2025, 15:17  reset all and ramped up quick. running mass scan. 0A MMR  (q 0A) 2025-04-16_15-42 mm q 0A.txt

Wednesday, April 16, 2025, 15:43 heating MMR

current ___ FC6 output

0   4.4e-12

1   3e-12

2   4e-12

3   5e-12

4   6e-12

5   8e-12

6   4.8e-11

7   1.5e-10

8   9.1e-10

Wednesday, April 16, 2025, 16:31 mass scan 8A (r)   2025-04-16_16-31 mm r 8A.txt

Wednesday, April 16, 2025, 16:32 dropping HV to check temperatures

Current ___ temperature   (note. takes ~ 6 min to cool from max to min)

0A   197

1A   206

2A   218

3A   220

4A   300

5A   395

6A   500

7A   608

8A   735

Wednesday, April 16, 2025, 17:01  cooling TGHT TBHT at 1A/10s

Thursday, April 17, 2025, 08:37  turbo pumps off, spinning down 

Thursday, April 17, 2025, 11:15  venting

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.