 Thursday, June 13, 2019, 10:55, David Wang, Conditioning Station, Repair, TM4, , TM4 HV test at TCS without source tray.
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I brought up TCS bias to 57.5 KV on TM4 without source tray at TCS. It was kept at this level about 1.0 hours. Some intermediate sparks. No spark trip
on devices. 57.5KV is very close to the HV up limit of this module. |
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Monday, July 08, 2019, 14:56, Carla Babcock, Conditioning Station, Repair, TM4, Dummy HP SIS target, First TM4 conditioning with new source tray
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Ramping up TM4 with new source tray in. Current condition: new source tray but no water running in lines B, D or window. Multipin on the source tray
grounded but no lines running into the service tray. Vacuum at 1e-6T.
Small sparks at each BIAS voltage increase starting at 30kV. First real spark around 38kV. |
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Tuesday, July 09, 2019, 09:15, Carla Babcock, Conditioning Station, Repair, TM4, Dummy HP SIS target, Conditioning TM4 w/ new ST up to 45kV
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Left TM4 at 40kV overnight with no previous heating. There was only one real spark which turned off TP2 but ops turned it back on. Ramping up again.
Tuesday, July 09, 2019, 09:13 : At 45kV the module is sparking on the top pretty regularly. Turned down and David will remove cover and lock out
target hall. |
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Wednesday, July 10, 2019, 11:59, Carla Babcock, Conditioning Station, Repair, TM4, Dummy HP SIS target, Conditioning TM4 w/ new ST up to 50kV
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David raised the bias to 49.5kV. Module is still sparking mainly on top. Humidity is super high.
Wednesday, July 10, 2019, 09:50 : sitting at 49.7kV for a coupe mins, big spark in vacuum took everything down.
Wednesday, July 10, 2019, 10:16 : Bias at 50kV drawing 0.1mA but looking pretty jumpy. Left it here for ~5 mins then had to turn down bias for |
Monday, July 15, 2019, 13:29, David Wang, Conditioning Station, Development, TM4, , Vacuum surge when TM4 B line iwas supplied with water. 
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Yesterday, TM4 B line was supplied with water at TCS for testing. TCS: IG1 and IG2 had big response on it. See attachment. The water was disconnected
right away, and line was purged. Vacuum recovered after overnight pump. |
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Tuesday, July 16, 2019, 08:44, Travis Cave, Conditioning Station, Standard Operation, TM4, no target, Module move
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TM4 has been moved from the conditioning station to the south west silo. Module was placed with the turbo pump facing south which puts the windows
facing north and south and the shutter facing west. |
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Monday, July 29, 2019, 16:17, Carla Babcock, Conditioning Station, Repair, TM4, Dummy LP SIS, New leak on EE water line while testing new In seals
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Original Problem:
Leaks on the B and D copper blocks, probably due to corrosion between the blocks and the inserts. Final solution, after many tries, was to make
an indium sheet the size of the copper blocks and use that to seal the entire surface. |
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Tuesday, August 06, 2019, 01:13, Carla Babcock, Conditioning Station, Repair, TM4, Dummy HP SIS target, Checks on EE line leak fix and window line leak (not fixed)
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TM4 has developed 4 leaks so far:
Line B - seems to be solved with an indium gasket (some testing already done)
Line D - seems to be solved with an indium
gasket (some testing already done)
EE - indium gasket installed, preliminary tests are good
Window cooling line - David found |
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Friday, August 16, 2019, 08:51, David Wang, Conditioning Station, Repair, TM4, , TM4 waterlines helium pressure test at TCS.
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LD base leak rate, 0.0Xe-9atm.cc/sec. Helium pressure, 70psi. 5 minutes each circuit. No response on all water line except containment box window which
has a VCR leak issue now. Window line leak rate, 2.3Xe-4 atm.cc/sec. |
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Friday, August 16, 2019, 08:52, David Wang, Conditioning Station, Standard Operation, TM4, , TM4 is moved from TCS to SW silo.
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| TM4 is moved from TCS to SW silo this morning. The move is good. |
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Monday, September 09, 2019, 06:38, David Wang, Conditioning Station, Standard Operation, TM4, UCx27, HS and window line leak check.
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| TM4 HS and window line are helium pressure checked at TCS. 70 psi helium 5 minutes. No response @1.2XE-8 atm.cc/sec. They are leak free. |
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Tuesday, September 10, 2019, 08:25, David Wang, Conditioning Station, Standard Operation, TM4, UCx27, Argan vent TCS.
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| TCS is argon vented. TM4 is disconnected at TCS. |
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Tuesday, October 01, 2019, 16:30, Anders Mjos, Conditioning Station, Standard Operation, TM2, Ta#58, Conditioning of Ta#58
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Tuesday, October 01, 2019, 15:15: Started roughing.
Tuesday, October 01, 2019, 16:30: Started TPs
Tuesday, October 01, 2019, 16:34: All TPs at speed |
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Friday, October 04, 2019, 16:43, David Wang, Conditioning Station, Standard Operation, TM2, , TM2 has been connected at TCS.
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| TM2 has been connected at TCS this morning. helium pressure test on Tm2 HS line is done. No leak. |
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Thursday, October 31, 2019, 08:49, Anders Mjos, Conditioning Station, Repair, , , Water leak on non-active cooling water circuit
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Yesterday a leak was discovered in the ISAC-I experimental hall. The leak appears to be at the connection between the evaporator and the return water
line. 1 in of water was lost from TCS:TK1. The water is currently valved off to prevent further leakage.
A fault reportt has been submitted to mechanical |
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Thursday, November 07, 2019, 08:56, David Wang, Conditioning Station, Standard Operation, TM2, SiC#38, TM2 in TCS.
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Helium pressure leak check on TM2 HS line at TCS is done. No leak. Also, Helium are sprayed to gas line adapter and fittings. No leak. TM2 is connected
at TCS. Anode plug on TCS is connected to module 52pin connector. Water system is started. Vacuum pumping down is good. HV cover will be installed today. |
 Thursday, November 07, 2019, 10:39, Anders Mjos, Conditioning Station, Standard Operation, TM2, SiC#38, Conditioing SiC#38
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Thursday, November 07, 2019, 10:35: Tested source to 30 A on TGHT, TBHT and COIL. ANODE at 100 V.
Tuesday, November 12, 2019
The FEBIAD source worked well over the weekend. The anode current limit was adjusted twice to stop voltage limiting. About 5E-8 A on the FC with |
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Wednesday, November 27, 2019, 13:46, David Wang, Conditioning Station, Standard Operation, TM2, SiC 38# febiad, TM2 SiC #38 disconnection checklist.
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| TM2 was disconnected in ITE yesterday. |
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Thursday, January 09, 2020, 13:49, Travis Cave, Conditioning Station, Standard Operation, TM3, no target, Module move
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| TM#3 has been moved from the south west silo to the conditioning station. |
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Thursday, January 09, 2020, 14:14, David Wang, Conditioning Station, Standard Operation, TM3, , Start of TCS roughing pump for TM3.
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| I started TCS roughing pump. TM3 TP1 and TP2 will be started tomorrow morning. |
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