 Tuesday, October 20, 2015, 12:49, Dan McDonald, ITW, Standard Operation, , SiC#32, Tm2 hook up In ITW
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Lower and disconnect TM2 from crane in ITW, proceed with hooking up TM2 as per checklist with Anders. Double check flow meters and coils, reset TP1 and
TP2 |
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Friday, October 23, 2015, 07:41, Dan McDonald, Spent Target Vault, Maintenance, , , F-308's
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Six F-308's where received from Nordion #6,#15,#13,#16 all contained contamination. Loose contamination was removed with some fixed contamination remaining
levels are low enough to allow the transport of spent targets. flasks where serviced as per Nordion Document IS/PP 0009 F308, IS/PP 0981 F308. Flasks are
now located in the north hot cell area. |
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Thursday, June 30, 2016, 13:33, Dan McDonald, Spent Target Vault, Maintenance, , , F308's
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The five spent target F308 flasks where gone through in accordance with Nordion guidelines, the sixth spare is remains in the Hot Cell area. All
flasks where in reasonable shape with two needing weld repairs on the pallets. I replaced all the 3/4" pallet to flask fasteners with new Grade 8
bolts nut and washer combo. Flasks have been moved into the Hot Cell area awaiting movement into the Target Hall. |
Monday, July 10, 2017, 09:09, Dan McDonald, North Hot-Cell, Repair, , , manipulator cart repair 
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A hydraulic leak was found on the manipulator install and repair cart, upon further investigation the cause was a faulty cylinder. Once the
cylinder was removed and disassembled the inner bore was found to be scored beyond repair. Another point of interest was that the rod was painted to the
point that when retracted it compromised the rod seal causing the cylinder to leak. attached are photos outlining the issues. new cylinders are being sourced |
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Saturday, April 27, 2024, 09:35, Carla Babcock; Alexander Shkuratoff, Conditioning Station, Development, TM3, , TM3 source and service tray testing
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Saturday, April 27, 2024, 09:35 :
Started ramping up HV, EE and EL together. First small spark at 20.5kV on bias, no reaction in other devices.
Note both BIAS and EL are off in their readbacks. See table below |
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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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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, 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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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, 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 |
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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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Thursday, August 08, 2019, 09:33, Carla Babcock, ITE, Development, TM2, Ta#58, TM2 HV conditioning with protons, round 1
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Starting HV tests on TM2 with 50uA of protons.
Tuesday, August 06, 2019, 03:37 : Ramping up 500V every 2mins or so, couple of sparks, then consistent sparks at 34kV. No vacuum response on IG1
for any sparks, even though the current spikes from around 40uA to 1300uA. Brought it down to 28kV to stop sparking. See a response on the EZL frequently. |
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Friday, August 16, 2019, 14:23, Carla Babcock, ITE, Repair, TM2, ZrC#8, TM2 electrical checks in ITE
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Ramped voltage on TM2 up to 30kV with no problems. Bias current is at 29uA, same as original TM2 bias current (see archiver for ITE June 15th, before
protons) and similar to 31uA right after protons went off on Aug. 6.
TGHT=0A |
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Tuesday, September 17, 2019, 07:37, Carla Babcock, ITE, Development, TM2, ZrC#8, end of run HV investigations
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Ramping up HV to ~30kV, encountered problems and had to drop back to 28kV. No response on IG1 or anything else during sparks. Lots of charging-type behaviour
on the bias current. Protons at 55uA
Tuesday, September 17, 2019, 02:02 : 15 mins with only 1 spark at 30kV so increased the bias |
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Tuesday, July 07, 2020, 17:43, Carla Babcock, ITE, Development, TM4, , RF tests on new IG-LIS wiring
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Tested RF from RF driver into new IGLIS wires at ITE. Used 5V, 1MHz (2MHz setting because of internal halving issue).
As expected there was a very slight mismatch visible (original cable ~ 68 Ohms, new cable ~ 53 Ohms).
The matching resistor will be changed and it will be retested. |
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Friday, July 30, 2021, 16:19, Carla Babcock, ITE, Repair, TM4, Ta#62, Electrical issues on Ta62
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TLDR: TBHT voltage too high and rising too quickly with TGHT current - voltage
limited. TGHT power supply tripped breakers somehow. ITE:EL not outputting voltage.
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Friday, July 30, 2021, 16:31, Carla Babcock, ITE, Repair, , , ITE re-wire
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See the attached for the way ITE has been re-wired for the Ta62 run. Note also that the copper block in the schematic on TBHT negative may not actually
be connected. Wiring verification on Aug. 4. |
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