 Tuesday, November 26, 2019, 15:43, Anders Mjos, SiC, 42464-3, HP-FEBIAD, Problems resolved, Water to vacuum leak on heat shield line
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This morning, the vacuum responded to shutting of the water of the heat shield circuit (leak rate without pumping leveling out). The vacuum chamber was
vented and the heat shield with flexible lines was replaced with another heat shield with fixed lines. The chamber was again pumped down and water opened
at ~150 mTorr to test the leak up rate without pumping. No leaks apparent, so continued pumping down with turbo pump. At a vacuum of about 1E-6 Torr the |
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Tuesday, September 12, 2017, 13:08, Aaron Schmidt, , , , , Window shutter added
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Tuesday, September 12, 2017, 12:00:
The coated back window was changed to a shuttered window.
On star-point flange bolt interfered with the shutter, however it was removed, shortened, and re-installed. |
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Wednesday, April 25, 2018, 07:21, Aaron Schmidt, , , , Done, HS swap evap 2
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Wednesday, April 25, 2018, 07:05: TGHT & TBHT off
Wednesday, April 25, 2018, 07:15: BV1 & TP1 off
Wednesday, April 25, 2018, 07:17: PV1 & BP1off |
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Friday, June 08, 2018, 08:33, Aaron Schmidt, , , , Problems resolved, Chiller tripped / Alarm
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Alarm noted on passing Hot Lab. RPG notified, no radiological hazards. ISAC ops contacted, drop in DI water last night.
Entered w/ PPE. Chiller alarming. Evap 1 running ok
Friday, June 08, 2018, 08:30: Chiller turned on/off. Reset. No alarm. |
Thursday, June 21, 2018, 11:38, Aaron Schmidt, Ta, 42218-9, HP-SIS, Done, Conditioning Ta#56 
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Ta#56 HP-SIS target description:
Total Ta foils = 470 [6x20 packs + 350 single discs]
Foil Thickness = 0.025mm |
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Tuesday, September 11, 2018, 10:47, Aaron Schmidt, , , , , Evap 2 step discrepancy
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Tuesday, September 11, 2018, 10:45:
TGHT: 53.4 A TBHT: 57.75
Actual |
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Tuesday, April 16, 2019, 13:40, Aaron Schmidt, , , , , Replace bottom insert on HS
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Tuesday, April 16, 2019, 13:38: Replaced the bottom insert on the heat shield.
Used small amount of isopropyl alcohol to wipe the inside if the HS out. |
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Tuesday, April 23, 2019, 13:55, Aaron Schmidt, Ta, 43044-4, LP-SIS, In progress, Conditioning Ta#58
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Ta#58 LP-SIS target description:
Total Ta foils = 470 [6x20 packs + 350 single discs]
Foil Thickness = 0.025mm |
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Tuesday, May 14, 2019, 13:57, Aaron Schmidt, , , LP-FEBIAD, Done, Test FEBIAD
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Tuesday, May 14, 2019, 13:56: Removed old HS w/ flexible lines & swapped in the FEBIAD. (HS waterlines are still purged.) Roughing.
Tuesday, May 14, 2019, 14:06: Turbo pump on.
Tuesday, May 14, 2019, 14:22: Waterlines opened. Vacuum ok @ 5.34e-05T & dropping. |
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Tuesday, May 21, 2019, 14:34, Aaron Schmidt, , , , , HS swap to EVAP 2 flex line.
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| Tuesday, May 21, 2019, 14:33: Install flexible line evap 2 HS. |
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Monday, September 16, 2019, 14:50, Aaron Schmidt, Ta, 44062-5, LP-SIS, In progress, Conditioning Ta#59
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Ta#59 LP-SIS target description:
Total Ta foils = 470 [6x20 packs + 350 single discs]
Foil Thickness = 0.025mm |
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Tuesday, September 17, 2019, 13:25, Aaron Schmidt, , , LP-SIS, Problems resolved, Turbo pump / roughing troubleshoot.
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Swapped out VCRs on HS to tray connection. (Right one felt slightly off)
Tuesday, September 17, 2019, 13:23: roughing.
Tuesday, September 17, 2019, 13:32: Turbo pump on. |
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Thursday, September 26, 2019, 14:03, Aaron Schmidt, Nb, 41882-3, TARGET BOAT, In progress, HS swap & test Nb target
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HS# 42752-7
Thursday, September 26, 2019, 13:46: Remove Flexible lines HS
Thursday, September 26, 2019, 14:03: Assy installed. |
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Tuesday, October 08, 2019, 14:16, Aaron Schmidt, SiC, , HP-FEBIAD, In progress, Temp measurements.
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Tuesday, October 08, 2019, 14:14: Remove Flex line HS.
HS: 42752-1
Waterlines not open yet. |
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Friday, November 15, 2019, 13:26, Aaron Schmidt, SiC, , HP-FEBIAD, Problems resolved, Temp map testing - 1. (Leak issue)
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HS 42752-5 - Setup for Temperature mapping.
Friday, November 15, 2019, 13:26: Roughing.
Friday, November 15, 2019, 13:36: Turbo pump on. |
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Thursday, November 21, 2019, 08:10, Aaron Schmidt, SiC, , HP-FEBIAD, In progress, Temperature mapping.
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Thursday, November 21, 2019, 08:09: PS on. Leak issue resolved (Evap 2 Elog 466). Vacuum @ 4.10e-07T.
Thursday, November 21, 2019, 08:15: Auto-ramping TGHT / TBHT @ 2 A per min to 300 / 150 A. |
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Monday, November 25, 2019, 11:35, Aaron Schmidt, , , , In progress, Flex - line HS installed
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Leak noted on previous TaC sintering on HP FEBIAD # 42464-3.
Swapped out gaskets on HS flex line a re-tightened.
Monday, November 25, 2019, 11:31: Roughing. |
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Tuesday, December 03, 2019, 08:24, Aaron Schmidt, , , LP-FEBIAD, In progress, Temperature mapping.
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Tuesday, December 03, 2019, 08:15: Waterlines opened. Vacuum ok @ 4.06e-07T
Tuesday, December 03, 2019, 08:23: Unable to start due to flow trip? PS off.
Tuesday, December 03, 2019, 08:25: Turbo & Vac off. |
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Wednesday, March 04, 2020, 14:33, Aaron Schmidt, , , , Maintenance, PS swap out
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The TGHT PS was found to be defective.
It was uninstalled w/ Joel S: I2020-02-28-2. |
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Wednesday, May 20, 2020, 07:18, Aaron Schmidt, , , , , Check Evap 2
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Gradually open waterlines under vacuum after period of no use.
Wednesday, May 20, 2020, 07:17: Vacuum @ 1.13e-06T
Wednesday, May 20, 2020, 07:19: Hot lab cooling water return opened. Vacuum @ 1.13e-06T. |
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