Tuesday, January 07, 2025, 16:00 -  Target assembly installed in test stand. electrical connections assessed:

Prior to installation:  oven and cathode isolated from heatshield. no shorts

After installation:  Oven and Cathode 35kΩ from HVC. 

Tuesday, January 07, 2025, 16:05  -  pumping down to rough vacuum

Tuesday, January 07, 2025, 16:45  TP1B on.      TP1A on.  Pumping down

Prior to proceeding, ensure that ALL water cooling is turned on, as it was all drained and empty for the past 2 weeks.

Tuesday, January 07, 2025, 17:10   Beam line TP1 and TP2 on. 

Wednesday, January 08, 2025, 09:01    chamber pressure at 1.0E-6 T,  beamline pressure at 3.7E-7 T

 Wednesday, January 08, 2025, 10:32 - water cooling all on. no effect on vacuum pressure. 

Wednesday, January 08, 2025, 10:33    - Increased argon pressure in the gas line has no effect on vacuum pressure. it is registered on the pressure gauge at feedthrough.- 

  - However, roughing pump doesn't seem to be venting the argon gas line. I disconnected the copper line to the venting valve to confirm pump activity. - no activity detectable. 

- removed pump from assembly. switching on by itself shows no evidence of pump functionality. When on, pump is heating to very hot temperatures. I've emailed Edi at vacuum group to investigate further.

Wednesday, January 08, 2025, 15:02   - Vacuum group says that the pump is dead. We can replace it if we'd like, but i've created a temporary solution by connecting the argon venting valve to the backing pumps. For the sake of being careful (although this may be overly cautious), we must avoid opening this venting valve without first isolating the connection from the turbo pumps via closing TSG:PV1

Wednesday, January 08, 2025, 15:04  ramping up COIL to ensure conditioning against outgassing later.  vacuum appears to be stabilizing below 2e-6 T

Wednesday, January 08, 2025, 16:32   vacuum recovered, beginning to heat at 1A/30s up to 580A/230A    TGHT/TBHT

Wednesday, January 08, 2025, 22:32   with COIL on, the vacuum pressure increased to ~2.2E-6 T before beginning to recover, leaving on to encourage vacuum recovery.

Thursday, January 09, 2025, 08:27 Vacuum at 1.0E-6 T.  COIL off.

Thursday, January 09, 2025, 10:15   Argon gas line at 0.5 bar.a

Thursday, January 09, 2025, 10:56   increasing BIAS/EE/EZL  to 30/1.5/13 kV 

Thursday, January 09, 2025, 11:19    turning on optics elements. TMS:Q2 is timed out and possibly unalive. - must be investigated

Thursday, January 09, 2025, 12:38  HV at 30kV. monitoring for spark activity 

Thursday, January 09, 2025, 12:53  over 15 minutes, there was just one possible spark.  I see also that TPS:Q2 (quadrupole prior to FC0) seems to be half-down. i can't seem to get it to stop timing out and recharge. must investigate further

after investigating further and attempting to reset/reconfigure. I tried power cycling the canbus controller as well. In the end, controls group determined that this controller needed to be replaced.

 Thursday, January 09, 2025, 14:34   all optics set.  setting COIL CATHODE to 40A 120V.   CATHODE is leaking 0 current. (0.000 mA readback).  

Thursday, January 09, 2025, 14:37   reading 2.91e-8A at FC0 . found Argon peak at 40 exactly. MB1 current 96.4561 A

Thursday, January 09, 2025, 14:42 using COIL CATHODE scan program to optimize. (data file measure_id=9106)  A local maximum was identified at 140V with 40A coil current. However, a short seems to show up when the cathode voltage reaches ~130V. it lets through only ~10mA at 130 and then will release up to at least 100mA at 140V.

As time passes, the sustained voltage drops over time, given a current limit of 100mA. it dropped to ~50V. On subsequent increases of the power supply, current begins leaking through at ~65V. 

Given this, I will continue (while monitoring the cathode power supply) with a cathode coil of 50V 90A.

Thursday, January 09, 2025, 15:28  FC0 = 2.21 e-8 A.    FC6 at 3.21e-10A   RPM taken for all 4.

Thursday, January 09, 2025, 16:04   mass scan complete  -  2025_01_09-16_01 FEBIAD no retainer 1.txt CATHODE voltage was stable at 50V throughout.

 Thursday, January 09, 2025, 16:07  decreasing BIAS/EE/EZL to 0, 0, 0

 Friday, January 10, 2025, 09:09    ramping BIAS/EE/EZL  to 30/1.5/13 kV 

Friday, January 10, 2025, 11:51 Increasing COIL and CATHODE to 90A and 50V (was able to ramp cathode up to 100V before seeing current loss)

Friday, January 10, 2025, 11:53   FC0 = 1.7e-8 A.    FC6 = 4.9e-10 A    wire scans taken.

Friday, January 10, 2025, 12:00     Beginning mass scan with COIL CATHODE at 90A 50V   - 2025_01_10-12_28 FEBIAD no retainer 2.txt

Friday, January 10, 2025, 12:28   decreasing BIAS/EE/EZL to 0, 0, 0

 Friday, January 10, 2025, 13:15   gas inflow OFF (at rough vacuum pressure). Ramping up again BIAS/EE/EZL  to 30/1.5/13 kV 

Friday, January 10, 2025, 14:27   FC0 = 1.22e-8A.   FC6 = 2.93e-12A  (at 40) .   mass scan taken  = 2025_01_10-14_18 FEBIAD no retainer 3 argon off.txt     wire scans taken.

Friday, January 10, 2025, 14:28   TGHT TBHT cooling to 0A 0A at 1A/30s
 

Monday, January 13, 2025, 11:00   testing cathode isolation on cold target by ramping up cathode voltage until breakdown.   At 120V, CATHODE current is 2.4mA. (125V, 8.5mA), at 130V, current limiting and dropping voltage.

 Monday, January 13, 2025, 11:10   power supplies off. Winding down turbo pumps for chamber evac

Monday, January 13, 2025, 13:07   venting 

Wednesday, September 14, 2011, 15:33

blah blah blah...

Vac group has replaced the two turbo pumps.

The vacuum on TSGIG1 reads 2.85e-07. Turing on water on teststand and observing any changes in vacuum pressure.

 Tuesday, May 15, 2012, 10:13: Turbo pumps at speed. Vacuum at 1.4E-5.

Tuesday, May 15, 2012, 12:03: Cooling lines opened. Vacuum stable at 1.6E-6

Tuesday, May 15, 2012, 12:17: Target ready to be heated and biased.

Did the HV conditioning up to 30kV and started to ramp up the heaters to 580A and 230A.

Thursday, May 17, 2012, 08:36: Turbo pumps switched off in preparation of target removal.

Thursday, May 17, 2012, 08:51: Purging cooling lines.

Thursday, May 17, 2012, 08:55: Venting.

Thursday, May 17, 2012, 09:21: Target removed

Anders Mjos wrote:

A chip of insulator material was detected below the lower target insulator stand-off (attachment - left picture). The chip may come from the tube heater insulator above (attachment - right picture). The chip will be further investigated when the target is removed.

 The chip came from the lower insulator stand-off on the target assembly (see attachment). After investigating the chipped insulator, it was decided (Pierre, Friedhelm, Anders) not to replace it - as the risk involved may be less than the risk involved in replacing.

 Thursday, May 17, 2012, 13:15

After the test-stand, the EE was removed for inspection.  It was discovered that there were some solid residues coated on the extraction electrode and the common plate, but the ionizer tube was clean (see attachment#1).  Some samples were collected and will try to do some analysis.  This problem has been seen before but it's still not clear why the solid residues form after the test-stand.  

The EE & the common plate were cleaned with acetone and re-assembled back to the target.  

 Wednesday, April 10, 2013, 12:13: Stopped turbos in preparation for venting the chamber.

Wednesday, April 10, 2013, 13:05: Venting

Wednesday, April 10, 2013, 13:37: Ta#40 installed with 130 in lbs torque on all bolts.

Wednesday, April 10, 2013, 13:37: Roughing

Wednesday, April 10, 2013, 13:58: Started turbos

Wednesday, April 10, 2013, 14:07: Turbos at speed

Wednesday, April 10, 2013, 14:08: Vacuum at 9.2E-6 Torr

 Thursday, April 11, 2013, 08:26: Opened cooling water. Vacuum stable at 2.2E-7 Torr

Monday, April 15, 2013, 08:40: HV conditioned to 30kV TSG:BIAS:RDCUR at 37 uA

Monday, April 15, 2013, 08:46: Started Target Heat Ramp 580A / 230A

Monday, April 15, 2013, 13:30: Target at temperature TGHT:RDCUR=574A, TBHT:RDCUR=230A

Monday, April 15, 2013, 15:10: Mass scan

Monday, April 15, 2013, 16:21: Target will be left at temperature overnight.

 Tuesday, April 16, 2013, 08:40: Mass scan

Tuesday, April 16, 2013, 13:08: Started Target Cooling Sequence

 Wednesday, April 17, 2013, 08:43: High voltage BIAS to zero

Wednesday, April 17, 2013, 08:47: Turbos off

Wednesday, April 17, 2013, 16:20: Target will likely be removed tomorrow Thursday.

Thursday, April 18, 2013, 11:13  : Venting

Thursday, April 18, 2013, 11:17: Water lines purged

 Thursday, April 18, 2013, 11:29: Chamber vented. Target Removed

Target installed at the Test Stand after an inspection in the lab. EE was cleand. All bolts torqued to 130 in lbs

Thursday, April 18, 2013, 13:48: Rouging

Thursday, April 18, 2013, 14:11: Starting turbos

Thursday, April 18, 2013, 14:20 : Turbos at speed

Thursday, April 18, 2013, 14:21 : Vacuum at 2.3E-5 T 

Friday, April 19, 2013, 08:23: Opened cooling water. Vacuum stable at 9.6E-6 T

Vacuum is somewhat higher than expected (5.2E-7 T) . Will went and clean the o-rings on the doors.

Monday, April 22, 2013, 09:32: Turbos off.

Monday, April 22, 2013, 10:57: Venting

Monday, April 22, 2013, 12:25: Vented

Monday, April 22, 2013, 14:09: Roughing

Monday, April 22, 2013, 14:31: Started Turbos

Monday, April 22, 2013, 14:40: Turbos at speed

Monday, April 22, 2013, 14:41: Vacuum at 1.8E-5 T

Tuesday, April 23, 2013, 09:52 : Vacuum at 2.6E-7 T - already an improvement from yesterday

Thursday, April 25, 2013, 08:47: Stopped turbos. A test target with at new FEBIAD coil will be tested.

Thursday, April 25, 2013, 13:27: Venting

Friday, September 27, 2013, 11:41: Roughing

Friday, September 27, 2013, 12:08: Turbos started

Friday, September 27, 2013, 12:16: Turbos at speed.

Friday, September 27, 2013, 12:18: Vacuum at 1.5E-5 T

Monday, September 30, 2013, 08:41: Opened water supply. Vacuum stable at 1.5E-7 T

TGHT Q=5.5 T=28.0
TBHT Q=5.8 T=28.0

Monday, September 30, 2013, 15:19: Flow sensor moved from TBHT to HS

TGHT Q=5.5 T=27.9
HS      Q=3.6 T=27.8

Tuesday, October 01, 2013, 12:08: Taget Biased to 30kV.

Wednesday, October 02, 2013, 08:50: Started autoramping to 580A/230A

Wednesday, October 02, 2013, 08:50: Opened IV4

Wednesday, October 02, 2013, 10:51 TGHT/TBHT 250A / 239A
TGHT Q=5.5 T=28.5
HS      Q=3.6 T=29.2
SUPPLY (ext)    27.3
RETURN (ext)  27.8

Wednesday, October 02, 2013, 13:28 TGHT/TBHT 250A / 570A
TGHT Q=5.5 T=30.4
HS      Q=3.6 T=33.4
SUPPLY (ext)    27.4
RETURN (ext)  29.3

Wednesday, October 02, 2013, 13:30: TBHT was starting to limit on voltage. Increased voltage limit to 2.4V.

Thursday, October 03, 2013, 08:21: TMS:TP2 timed out over night.

Magnet PS breaker tripped during a mass scan yesterday. Reset breaker and cleared interlocks.

TGHT Q=5.5 T=30.4
HS      Q=3.6 T=34.0
SUPPLY (ext)    27.3
RETURN (ext)  29.3

Thursday, October 03, 2013, 08:28: Started mass scan 200 -> 0 m/q. FC0 7.5E-8 A

Thursday, October 03, 2013, 14:29
TGHT Q=5.5 T=30.6
HS      Q=3.6 T=33.9
SUPPLY (ext)    27.4
RETURN (ext)  29.6

Thursday, October 03, 2013, 15:14: Lowered TBHT:RDCUR  to 230A.

Thursday, October 03, 2013, 15:37: Increased EE to -2000 V

Thursday, October 03, 2013, 16:22
TGHT Q=5.5 T=30.6
HS      Q=3.6 T=33.9
SUPPLY (ext)    27.5
RETURN (ext)  29.6

Friday, October 04, 2013, 08:08
TGHT Q=5.5 T=30.6
HS      Q=3.5 T=33.9
SUPPLY (ext)    27.5
RETURN (ext)  29.3

Mass scan started.

Friday, October 04, 2013, 08:46: Cool down started.

Friday, October 04, 2013, 13:35: TPS:IV4 closed

Friday, October 04, 2013, 13:41: Source debiased.

Tuesday, October 15, 2013, 09:56: Turbos stopped. Vacuum at 1.15 E-7 T

Tuesday, October 15, 2013, 12:44: Venting

After the conditioning, some oxidation (?) from the standards (?) were found on the Plasma Electrode and around the Target Tube. See attachment

NOTE:

TBHT Power Supply is 600A. EPICS thinks it is 500. Multiply current setting with 1.2 for actual current to the tube.

Friday, March 28, 2014, 10:38: Stopped turbos. Vacuum at 1.3E-7 T 

Friday, March 28, 2014, 15:05: Venting

By RM

Friday, March 28, 2014, 15:22: Target assembly installed

Friday, March 28, 2014, 15:43: Chamber Roughing started

Friday, March 28, 2014, 15:58: Turbos started

Friday, March 28, 2014, 16:03: TP1B at speed

Friday, March 28, 2014, 16:06: TP1A at speed

Friday, March 28, 2014, 16:07: IG1 Turned on - reading 1.29e-05T

 By R.M.

Monday, March 31, 2014, 09:55: Water to heatshield line turned on, no change in vacuum: 1.31e-07 T

Started March 31, 2014:

- did the HV conditioning up to 30kV.

April 1, 2014:

- started the Heaters Conditioning. 

Heaters Conditioning finished.

The Power Supplies front panel:

TGHT: 5.56V and 580A

TBHT: 2.23V and 227A

April 2, 2014:

- did a mass scan. NOTE: data is shifted by 10-15%.

plotdump-local-clean.txt_Apr2_14_16-33-19.txt

After the scan finished I found the Test Stand EPICS screens whited-out. Decided with Friedhelm to leave it as it was for the night and to contact Controls next day to reboot it without tripping the heaters and the HV.

April 3, 2014:

Found everything recovered. Except: “SOURCES ARCH IS RUNNING” was red. So, I restarted it. Jane Richards and Friedhelm didn’t do any IOC reboot. Also found that the data from yesterday’s scan was saved (see the previous scan).

Did another mass scan:  plotdump-local-clean.txt_Apr3_14_10-18-13.txt

NOTE: data is shifted by 10-15%.

Cooling down .

HV and Heaters Conditioning had finished. The target was cooled down and it's ready for the on-line installation.

Friday, April 04, 2014, 08:23: Target bias, EE and EZL to zero. Turbos off.

Friday, April 04, 2014, 10:14: Venting 

Friday, April 04, 2014, 10:48: Target removed - By R.M.

Friday, August 29, 2014, 14:51: Roughing

Friday, August 29, 2014, 15:11: Starting turbos.

Friday, August 29, 2014, 15:19: Turbos at speed

Friday, August 29, 2014, 15:21: Vacuum at 1.6E-5 T

Tuesday, September 02, 2014, 08:36: HS cooling water supply opened. Vacuum stable at 1.4E-7 T

Tuesday, September 02, 2014, 08:50 : BIAS/ EZL / EE to 30 / 14 / -1.5 kV. Started auto ramping to 500 / 150 (180) A

Tuesday, September 02, 2014, 09:23 

Supply ~97psi, Return ~7psi

Thursday, September 04, 2014, 12:38 : Starting cool-down

Thursday, September 04, 2014, 15:20: Closed IV4

Thursday, September 04, 2014, 15:37 : BIAS / EZL / EE to 0

Friday, September 05, 2014

Target cooled down. Power supplies switched off.

Monday, September 08, 2014, 14:07: Turbos stopped.

Monday, September 08, 2014, 15:15: Venting. HS cooling water lines purged.

Monday, September 08, 2014, 16:00: Target removed.

 Monday, March 16, 2015, 18:53: Started turbos

Monday, March 16, 2015, 19:00: Turbos at speed. Vacuum at 1.3E-5 T

Tuesday, March 17, 2015, 09:03: Opened cooling water. Vacuum stable at 1.9E-7 T

Tuesday, March 17, 2015, 09:12: Opened IV4. BIAS/EZL/EE to 30/14/1.5 kV

Tuesday, March 17, 2015, 09:20: Started heating TGHT/TBHT to 400/150 A at 2/1 A/min

Wednesday, March 18, 2015, 08:41: Continued heating TGHT/TBHT to 580/170 A at 2/1 A/min

Wednesday, March 18, 2015, 09:33: MB1 found tripped on water flow. Water pressure is low this morning as cyclotron main magnet was switched on, but not all water pumps. Expected to be resolved soon..

Some emittance scans at 170, 180, 190, 200 A TBHT were done

Thursday, March 19, 2015, 08:47: Heating TBHT to 220 A

Thursday, March 19, 2015, 08:56: Heating TBHT to 230 A

Thursday, March 19, 2015, 10:50: EE at -2000 V for 10 min

Thursday, March 19, 2015, 10:52: EE back at -1.5 kV

Thursday, March 19, 2015, 17:54: Started cool down of target

Friday, March 20, 2015, 08:47: Closed IV4

Friday, March 20, 2015, 08:47: RGA off.

Friday, March 20, 2015, 08:50: Stopped turbos

Friday, March 20, 2015, 10:24: Venting

Friday, March 20, 2015, 11:45: Target removed.

Monday, May 25, 2015, 14:35: Rouging

Monday, May 25, 2015, 15:05: Turbos started.

Monday, May 25, 2015, 15:15: Turbos at speed. Vacuum at 2.4E-5 T

Tuesday, May 26, 2015, 07:45: Opened water circuit for HS line. Vacuum stable at 6.3E-7 T. No response on RGA

Tuesday, May 26, 2015, 07:50: Autoramping to 500/200 A at 2/1 A/min. Good vacuum 2E-6, bad vacuum 4E-6 T

Tuesday, May 26, 2015, 07:52: IV4 open

Tuesday, May 26, 2015, 13:15: Continue auto-ramping to 580 A

Tuesday, May 26, 2015, 13:48: BIAS/EZL/EE 30 / 15 / 1.5 kV

Tuesday, May 26, 2015, 17:29: ~6 sparks/hour

Wednesday, May 27, 2015, 08:14: A couple of sparks over night.

Wednesday, May 27, 2015, 09:23: Autoramping TBHT to 220 A

Wednesday, May 27, 2015, 09:41: Found FC0 and FC6 bias to be off

Wednesday, May 27, 2015, 09:42: Autoramping TBHT to 230 A

Wednesday, May 27, 2015, 10:30: EE to 2 kV

Wednesday, May 27, 2015, 10:37: Starting cool down at 4/2 A/min

Wednesday, May 27, 2015, 10:40: EE to 1.5 kV

Wednesday, May 27, 2015, 12:37 : BIAS/EZL/EE OFF

Wednesday, May 27, 2015, 12:37 : IV4 closed

Wednesday, May 27, 2015, 13:02: Stopped turbos

Wednesday, May 27, 2015, 13:41: Venting