 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. |
 Wednesday, May 20, 2020, 12:54, Marla Cervantes, , 41882-1, TARGET BOAT, Done, Conditioning graphite target #1 (T2) 
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Marla Cervantes wrote:
Friday, March 20, 2020, 19:39 |
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Wednesday, May 27, 2020, 13:04, Marla Cervantes, , 44139-7-SK, , Done, Conditioning graphite target #2
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Wednesday, May 27, 2020, 10:22
IGP1 = 3.2e-7 Torr
TGHT = 0.186 V, 0.028 A |
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Monday, July 13, 2020, 11:03, Aaron Schmidt, , , , , Pump down / leak / vacuum check.
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Darwin reported that he was unable to achieve vacuum of 150mTorr. The flex-line HS had been removed last week for modifications. SS gaskets received
today. Replaced HS gaskets (Cu).
Monday, July 13, 2020, 11:00: Roughing. |
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Wednesday, August 05, 2020, 13:38, Aaron Schmidt, , , , , RP Swap on EVAP 2
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BP1 swapped with RP2 (TS beamline)
U-line installed.
Wednesday, August 05, 2020, 13:37: Roughing. |
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Wednesday, August 12, 2020, 08:58, Aaron Schmidt, , , , In progress, Install Flex line HS
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Flex line HS installed. New SS gaskets.
Wednesday, August 12, 2020, 08:56: Roughing (Check).
Wednesday, August 12, 2020, 09:17: Ready for turbo pump. |
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Saturday, August 22, 2020, 11:44, Marla Cervantes, , 44489-11, , Done, C-Cartridge test#1
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Saturday, August 22, 2020, 11:41
A Ta short tube was coated with TaC and sintered, then it was loaded with a c-cartridge
Now is currently under vacuum and it will be heated to 2000 °C during 3 days |
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Wednesday, August 26, 2020, 10:27, Marla Cervantes, , 44489-8, , Done, C-Cartridge test #2
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Wednesday, August 26, 2020, 10:26
A Ta short tube was loaded with a C-cartridge
Currently, the tube is under vacuum and it will be heated to 2000 °C during 3 days. |
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Monday, August 31, 2020, 12:57, Marla Cervantes, , 44489-15 , , Done, TaC coating heating test
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Monday, August 31, 2020, 12:23
A short naked Ta tube (no heat shielding), previously coated with TaC was set under vacuum,
and it will be kept at 2000 °C for 3 days to later identify the TaC's carbon penetration. |
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Monday, September 21, 2020, 17:01, Marla Cervantes, , 44139-8-SK, TARGET BOAT, Done, Conditioning graphite target #3
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Monday, September 21, 2020, 16:50
450 graphite foils coated with graphite slurry were loaded in a tantalum tube, the tantalum tube was wrapped with 3 Ta heat shields and installed
in the EVAP, to measure the temperature, a pack of 4 Ta foils were inserted in each side of the tube. |
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Wednesday, October 07, 2020, 12:25, Aaron Schmidt, , , , In progress, IEVAP2:TP1 Swap out.
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Wednesday, October 07, 2020
TP1 was not spinning up past 4krpm. Stalling & tripping out. Examined with Vacuum group, appears to be starting to seize. Exchange turbo pump.
Serial# 500937 |
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Tuesday, November 24, 2020, 08:13, Aaron Schmidt, , , , , Flex - line HS installed
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Monday, November 23, 2020, 17:01: Flex-line HS installed.
Tuesday, November 24, 2020, 08:03: Vacuum @ 9.55e-07T.
Tuesday, November 24, 2020, 08:08: Vacuum Ok |
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Tuesday, November 24, 2020, 12:56, Marla Cervantes, , 44139-8-SK , TARGET BOAT, Done, Graphite casting conditioning
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Tuesday, November 24, 2020, 09:23
A batch of 60 discs of 18 mm diameter were loaded in a tantalum tube. The tantalum tube was wrapped with 3 layers of Ta foil for heat shielding
and mounted in the EVAP2. EVAP2 pumped down overnight and Aaron made a leak test this morning (elog 524). |
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Tuesday, February 09, 2021, 06:48, Aaron Schmidt, , NA, , Done, Ta coating test
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Monday, February 08, 2021, 17:00: Installed brackets w/ Ta wire and a small piece of Re to test voltage drop.
Rough down, TP on. Waterlines open.
Tuesday, February 09, 2021, 06:44: Vacuum @ 8.63e-07T. |
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Thursday, February 11, 2021, 10:57, Marla Cervantes, , NA, , Done, Re coating Test 1
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Thursday, February 10, 2021, 12:00
Objective: Heat a Re wire to evaporate it and deposit a layer of Re on the inner surface of a Ta tube.
A Re wire of 1mm diameter was clamped with Cu brackets in EVAP2, the wire is partially enclosed in a Ta tube. EVAP2 pumping down |
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Tuesday, February 23, 2021, 08:59, Marla Cervantes, , NA (Cu-tube), , Done, Re coating Test 2
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Tuesday, February 23, 2021, 08:49
Yesterday a heat shield was washed and when dry it was installed in the EVAP2,
A 1mm thick rhenium wire was held within two copper brackets to pass through a Cu tube with the intention of coating its inside face |
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Monday, March 01, 2021, 13:58, Aaron Schmidt, , , , , Flex - line HS installed
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Flex-Line HS had been fully scrubbed out earlier. All gaskets replaced.
Empty. Quick check for leaks.
Monday, March 01, 2021, 13:57: Roughing. |
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Tuesday, March 23, 2021, 08:07, Aaron Schmidt, , , , , Re - Ta test. Leak check.
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Modified HS installed with new brackets as per Marla.
Tuesday, March 23, 2021, 08:02: Vacuum @ 3.64e-07T. Waterlines opened.
Tuesday, March 23, 2021, 08:06: Vacuum @ 3.60e-07T. Stable. |
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Thursday, March 25, 2021, 07:57, Aaron Schmidt, , , , , Re - Ta test. Leak check.
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Thursday, March 25, 2021, 07:55: Vacuum @ 5.12e-07T. Waterlines opened.
Thursday, March 25, 2021, 07:55: Vacuum @ 5.09e-07T. Stable.
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Sunday, March 28, 2021, 11:24, Marla Cervantes, , NA (Ta-tube), , Done, Re-coat 3
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Objective: Coating the inner surface of a tantalum tube to make a destructive test and use a reference for the tantalum boats coatings
Results: The tube was coated
Sunday, March 28, 2021, 11:23 |
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