Friday, November 01, 2019, 15:47: A symbiotic  peek seal assembly  was installed on the manipulator grip to verify the temperature at high voltage and high current.

Friday, November 01, 2019, 15:48: Three  thermocouples added for temperature readings.

Friday, November 01, 2019, 15:47: Roughing

Friday, November 01, 2019, 16:19: Turbos on.

Friday, November 01, 2019, 16:27: IG1 on.

Friday, November 01, 2019, 16:29: RGA on.

AS

Monday, November 04, 2019, 07:41: Waterlines opened. No response on RGA. Vacuum ok @ 3.97e-07T.

Monday, November 04, 2019, 07:44: Power / sources on.

Monday, November 04, 2019, 07:47: Auto-ramping TGHT to 300 A @ 2 A per min.

Monday, November 04, 2019, 10:57: Auto-ramping TGHT to 400 A @ 2 A per min.

FM

Monday, November 04, 2019, 12:11: Auto-ramping TGHT to 500 A @ 2 A per min.

Monday, November 04, 2019, 13:35: Auto-ramping TGHT to 600 A @ 2 A per min.

Monday, November 04, 2019, 14:48: Bias/EE/EZL @ 30/1.5/13 kV.

Monday, November 04, 2019, 15:03: Bias/EE/EZL @ 40/2.0/17 kV.

Monday, November 04, 2019, 15:04: Sparks observed after reaching 40 kV. TMS:TP6 down. Back down to 32 kV.

Monday, November 04, 2019, 15:04:  Bias to 40 kV. One spark only. Seems stable now.

Sparks occurred sparsely. Max time without a spark was 26 minutes.

Monday, November 04, 2019, 16:09: Bias/EE/EZL @ 30/1.5/13 kV.

Monday, November 04, 2019, 16:16: RGA restart.

AS

Tuesday, November 05, 2019, 08:30: RGA Restarted.

Tuesday, November 05, 2019, 08:32: Begin bringing up HV to 35 kV on BIAS.

Tuesday, November 05, 2019, 08:35: BIAS / EE / EZL @ 35 / 1.8 / 15 kV.

Tuesday, November 05, 2019, 08:55: No sparks after 20 minutes. Move up to 40 kV.

Tuesday, November 05, 2019, 08:59: BIAS / EE / EZL @ 40 / 2.0 / 20 kV.

Tuesday, November 05, 2019, 09:34: Audible Spark*. Restart TSG: CB1, VCB1, CBCx2. Reset & restart turbo pump. TMS:TP6. Appears on EZl cur.

Tuesday, November 05, 2019, 09:37: RGA off. Leave it off.

Tuesday, November 05, 2019, 09:38: Audible Spark* but not loud at all. Restart TSG: CB1, VCB1, CBCx2. Reset & restart turbo pump. TMS:TP6.

Tuesday, November 05, 2019, 10:00: BIAS / EE / EZL @ 35 / 1.8 / 17.5 kV.

Tuesday, November 05, 2019, 10:06: BIAS / EE / EZL @ 0 / 0 / 0 kV.

Tuesday, November 05, 2019, 10:07: Auto-cooling TGHT to 500 A @ 4 A per min.

Wednesday, November 13, 2019, 07:29: Turbo pumps & ion gauge off. RGA was already off.

Friday, November 15, 2019, 08:43: Venting.

Wednesday, October 09, 2024, 11:28   Target loaded, remote power supply added for mass marker, negative channel on pin 5, positive channel on pin 7.

Wednesday, October 09, 2024, 11:50   roughing

 Wednesday, October 09, 2024, 12:51   Turbo pumps TP1A TP1B on

 Thursday, October 10, 2024, 09:27:   Water cooling turned on. no effect on vacuum (2.6e-6T)

Thursday, October 10, 2024, 09:45:   Increasing TGHT TBHT to 150/150A at 1A/30s

Thursday, October 10, 2024, 11:07    TGHT TBHT at 120/120A  .   increasing TGHT TBHT to 580/230 at 1A/10s 

Thursday, October 10, 2024, 12:29   during the current increase, when TBHT was at 230 and TGHT reached ~460, the TBHT current began decreasing. Upon inspection, the TBHT voltage is higher than normal and hitting its limit. It may be that there is another current path. that is, it may be shorted. 

as TGHT increases, TBHT voltage continues to increase.   TGHT voltage is similarly higher than usual, at 6V to deliver 500A.

on another note, the vacuum value has been increasing slowly throughout heating, possibly due to the presence of indium within the mass marker reservoir, or simply because this target has not been hot for some time. Leaving TGHT at 502A for the time being.

Thursday, October 10, 2024, 13:34    Increasing BIAS/EE/EZL to 30/2.5/13 kV. 

Thursday, October 10, 2024, 14:27  beginning mass scan - reservoir at 0 A. (reservoir contains solid Indium)    - mass scan res In 0A

 Thursday, October 10, 2024, 15:19   increased current through reservoir with magnet sitting at mass 115 - noticeable increase in Indium presence in beam beginning at ~2.5A. Brought res current to 3.0A, waited for FC6 current to plateau.- at 5e-10A

Thursday, October 10, 2024, 15:27   mass scan run again

Thursday, October 10, 2024, 15:57   res current decreased to 0A

Thursday, October 10, 2024, 15:57  dropping voltages to 0V 

Thursday, October 10, 2024, 16:12  voltages at 0, decreasing TGHT TBHT at 1A/30s 

ABC 123 blah blah blah...

link to old e-log

See attached file for photos of the broken tube 

Test stand vented

Friday, September 23, 2011, 16:3: The connection on the 9-pin connector for FEBIAD targets showed burn marks from the previous FEBIAD tests. Corresponding mark was found on the connector on the target side. Because of this the upper and lower 9-pin connectors were swapped to have a clean connector for the next FEBIAD target.

Anders Mjos wrote:

Friday, September 23, 2011, 16:3: The connection on the 9-pin connector for FEBIAD targets showed burn marks from the previous FEBIAD tests. Corresponding mark was found on the connector on the target side. Because of this the upper and lower 9-pin connectors were swapped to have a clean connector for the next FEBIAD target.

 See attachment#1: 9-pin-connector.jpg 

• While testing SiC#26 a leak was discovered on the water line to the heat shield. The leak was in the right joint (see attachment). The heat shield water lines were removed from the test stand and repaired in the Machine Shop. 
• Kapton was added to the FEBIAD coil line to prevent it from shorting to the target heater line (see attachment).

The gas system has been checked. The variable valve opens at about 7.55 very fast. Please be careful when using it. Stepsize for opening around this value should be 0.01. Gas lines have been pumped with pump in the high voltage rack. Ne leak was opened to release pressure.

test stand vented

Rick Maharaj wrote:

test stand vented

 Thursday, October 13, 2011, 15:40: Pumping down

Friday, October 14, 2011, 10:00: Cooling water is on. Pressure increase from 8e-7 to 3e-6 torr. Venting.

Friday, October 14, 2011, 11:10: Replaced seals on cooling lines with new silver plated SS seals. Pumping down.

Friday, October 14, 2011, 13:25: Cooling water is on. Vacuum at 1.35e-6 torr.

Monday, October 17, 2011, 09:00: Vacuum at 5.4e-7 torr. target ready to be heated.

Variable leak valve with serial number F3-592 has been replaced by F3-649 due to regulating problems described previously by Fridhelm Ames.

Anders Mjos wrote:

Variable leak valve with serial number F3-592 has been replaced by F3-649 due to regulating problems described previously by Fridhelm Ames.

 The variable leak valve F3-592 has been repaired. Contaminated diaphragm was replaced. See attachment for details.

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.

Anders Mjos wrote:

Anders Mjos wrote: Variable leak valve with serial number F3-592 has been replaced by F3-649 due to regulating problems described previously by Fridhelm Ames.  The variable leak valve F3-592 has been repaired. Contaminated diaphragm was replaced. See attachment for details.

 The leak valve has been tested with He and a leak detector. The leak valve could regulate in the complete range of the leak detector. 10^-11 to 10^-4 atm cc/s

turbo pumps shut off due to work on cooling water system

All turbo pumps have been restarted after cooling water is back and running.

Both turbo pumps at the source box were found off. TSG:TP1A has been started normally. TSG:TP1B does not spin up above 3KRPM even after several attemps. A fault report has been send to vacuum group.