 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 |
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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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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. |
Thursday, July 04, 2019, 08:57, Isaac Earle, Safe Module Parking, Development, , , SMP vacuum system installed 
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July 3:
- Assembled exhaust line flexible hose and fittings as per ISK0529 Rev D then leak checked: 1.4E-1 Torr test port pressure, 1.1E-7 atm-cc/s leak
rate, no response to helium spray at both ends of flexible line (all vacuum fittings purchased from Kurt Lesker under Requisition #1046936)
- |
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Friday, June 21, 2019, 07:16, David Wang, South Hot-Cell, Development, TM4, , TM4 new source tray leak check at SHC.
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New source tray was installed on TM4 yesterday. LD was used to pump down all water lines. Tube heater +D circuit has a big leak around water block
area. At base LR5.5 XE-5 atm.cc/sec, base pressure 170 mtorr, When Chad moved this helium probe close to water block area, The leak rate on
LD went to maximum level right away. When the probe was moved out of water block area, the LR went back to base level. The test repeated again with same |
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Thursday, June 20, 2019, 15:09, Isaac Earle, Safe Module Parking, Development, , , SMP motor wiring inspected by electrician
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The AC wiring for the SMP motor was inspected by Randy Boehm (TRIUMF electrician) as recommended by Franco Mammarella (TRIUMF electrical engineer).
After inspecting the system Randy required the following changes:
AC wiring inside the control panel be increased to 16awg minimum (14awg preferred)
Wiring between the control panel and |
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Friday, June 14, 2019, 08:15, David Wang, ITE, Standard Operation, TM2, , 5 shielding blocks are moved to ITE.
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| ITE is configured to take proton beam. |
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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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Thursday, June 13, 2019, 09:09, Travis Cave, South Hot-Cell, Standard Operation, TM4, no target and no source tray, Module move
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| TM#4 has been moved from the conditioning station to the south hot cell. The module has no source tray. |
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Wednesday, June 12, 2019, 08:56, Carla Babcock, Conditioning Station, Maintenance, TM4, No target, More TM4 conditioning without source tray
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The conditioning station was ramped down overnight and David ramped it back up this morning. Currently trying to get it to sit stable at something higher
than 55kV.
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Monday, June 10, 2019, 18:12, Carla Babcock, Conditioning Station, Maintenance, TM4, No target, Attempt to push bias > 56kV
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Monday, June 10, 2019, 16:59 : TM4 back up to BIAS / EL = 56.1kV / 29.5kV
Monday, June 10, 2019, 17:14 : After 57kV on the bias, things seem to be getting sketchy. The EL voltage and current are a bit jumpy and stepping
that voltage up seems to produce a slight spike in the bias current. |
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Monday, June 10, 2019, 16:22, Carla Babcock, Conditioning Station, Maintenance, TM4, No target, Ramping V on TM4, no HV cover in TH
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Ramped down the bias so David could remove the HV cover and lock out the target hall.
Ramped back up to BIAS / EL = 50kV / 26kV quickly with no sparks.
Monday, June 10, 2019, 15:35 : BIAS / EL = 52kV / 26kV |
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Monday, June 10, 2019, 14:13, Travis Cave, Spent Target Vault, Standard Operation, , , Old TM#4 source tray moved
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The old TM#4 source tray in the south hot cell was moved to the spent target vault. The tray had a low of 7.5mSv/hr to a high of 22.1mSv/hr though
a 390 degree rotation. |
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Monday, June 10, 2019, 08:26, Carla Babcock, Conditioning Station, Maintenance, TM4, No target, Ramping voltage on TM4 w/o source tray
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TM4 in conditioning station with no source tray, extraction electrode set to HV bias. Brought up to 30kV over the weekend by ISAC ops with no issues.
BIAS=30kV
EL=15kV |
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Friday, June 07, 2019, 13:11, David Wang, Conditioning Station, Development, TM4, , TCS and TM4.
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| TM4 has been connected at TCS for HV test. TCS water system and vacuum pumps are switched on. |
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Friday, June 07, 2019, 08:56, Travis Cave, Conditioning Station, Standard Operation, TM4, no target, Module move
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| TM#4 has been moved from the south hot cell to the conditioning station. |
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Thursday, June 06, 2019, 10:01, Travis Cave, South Hot-Cell, Standard Operation, TM4, no target, no source Tray, Electrical Check
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Results from the electrical check of TM#4 at the south hot cell with no source tray. R&U are shorted and when meggered A&P have a value
of 193k ohms. See attached for details. |
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Tuesday, June 04, 2019, 08:46, David Wang, ITE, Standard Operation, TM2, , ITE water signal interlock check.
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ITE water signal interlock check is done. Everything is good. Coil 2 circuit no longer used in ITE . PQRU are looped as one circuit fro coil 1
circuit on Module since now. |
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Friday, May 24, 2019, 09:11, Travis Cave, South Hot-Cell, Standard Operation, TM4, no target, Module move
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| TM#4 has been moved from the south west silo to the south hot cell. |
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Thursday, May 23, 2019, 11:22, Travis Cave, South Hot-Cell, Maintenance, , , Removing garbage from the south hot cell.
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A 55 Gal. drum was remotely lowered into the south hot cell. It was then filled with compressable waste. Then the drum was remotely removed from
the south hot cell. The drum measured about 20microSv/hr upon removal from the south hot cell. |
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