 Wednesday, March 13, 2019, 15:43, Marla Cervantes, , 43630-6, , Done, Graphite insert test #4
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Wednesday, March 13, 2019, 15:41
An uncoated tantalum tube was loaded with a graphite insert (with conical caps).
3 tantalum foils were wrapped around the tantalum tube and a Ta cap was added. |
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Monday, April 01, 2019, 16:35, Darwin Ortiz Rosales, , 43630-4, , Done, TaC coating/graphite/sintering
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Monday, April 01, 2019, 16:35
Container was coated with TaC and a roll of graphite inserted inside the tube. A couple of TaC coated Ta springs inside to keep graphite
pressed against walls of cylinder. |
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Wednesday, April 03, 2019, 16:59, Marla Cervantes, TaC, 43630-5, , Done, TaC coating/sintering for graphite insert test
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Wednesday, April 03, 2019, 16:57
Tantalum tube was coated with TaC and wrapped with Ta heat-shield (3 layers)
Desired temp = 1900 C (expected TGHT ~445A/7.5V). |
Sunday, April 07, 2019, 08:13, Marla Cervantes, , 43630-5, , Done, Graphite insert test #5 
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Sunday, April 07, 2019, 08:10
A graphite insert (with conical caps) was loaded in tantalum tube previously coated with TaC,
and wrapped with 3 tantalum foils, |
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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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Friday, May 10, 2019, 16:58, Marla Cervantes, , 43943-1, , Done, TaC coating/sintering for graphite insert test
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Friday, May 10, 2019, 16:54
A tantalum tube was coated with TaC,and wrapped with three tantalum sheets,
the tube was set in the EVAP2 to sinter the TaC coating. |
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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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Tuesday, May 21, 2019, 18:01, Marla Cervantes, , 43943-1, , Done, Graphite foil test
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Tuesday, May 21, 2019, 17:57
A tantalum tube previously coated with TaC and sintered was loaded with graphite foils.
The mass of the foils was 20.04 g. |
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Friday, May 24, 2019, 15:29, Marla Cervantes, , 43943-2, , Done, Graphite insert test
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Friday, May 24, 2019, 15:26
A graphite insert with tantalum wires in its caps
was loaded in a tantalum tube, the system will be heated to 2000 C |
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Monday, June 17, 2019, 17:03, Marla Cervantes, , 43943-2, , Done, Graphite insert test
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Thursday, June 6, 2019, 16:43
A graphite insert with tantalum wires in its caps was loaded in a tantalum tube.
The system will be heated to 2000 C again (see |
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Wednesday, August 28, 2019, 05:59, Marla Cervantes, , 44062-2-SK, , Done, Graphite insert test
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Wednesday, August 28, 2019, 06:00
A graphite insert (with conical caps) was loaded in tantalum tube
the Ta tube was wrapped with 3 tantalum foils, |
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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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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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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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Saturday, July 25, 2020, 08:58, Darwin Ortiz Rosales, ZrC, 44139-7-SK, , In progress, ZrC for Luca's experiments
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Friday, July 24, 2020, 15:00
Ta tube cotaining 497 ZrC discs wrapped with Ta heat-shields (3 layers)
Desired temperature= 1800C (expected TGHT 410 A), TBHT will be set fixed at 230A (max). |
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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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Tuesday, August 18, 2020, 10:41, Marla Cervantes, TaC, 44489-11, , Done, TaC coating/sintering
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Thursday, August 19, 2020, 17:28
A short tantalum tube was coated with TaC and wrapped with 3 layers of Ta,
a Ta foil was attached to the end of the tube to be able to measure the temperature during heating |
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