 Wednesday, May 11, 2011, 16:23, John Wong, SiC, 38481-8, HP-FEBIAD, Problems, Organics burnoff & Sintering 9x
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Wed May 11 16:20:21 2011: The HP-FEBIAD (w.o#38481-8) was filled with SiC (8.5mm, 555 discs). The target is wrapped with 3 Ta-heat shields
and is in the evaporator, which is being pumped down.
Thu May 12 10:52:48 2011: The evaporator ion gauge, IEVAPIG1 filament burnt out. The gauge comes in two filaments, so it is now running |
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Tuesday, May 17, 2011, 16:43, John Wong, , , , Maintenance, Evaporator Ion gauge replaced
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The evaporator ion gauge filament burnt out on May 11, 2011. A target was in the evaporator at that time and was about to being the sintering process.
The gauge had two filaments, so vacuum group helped to switch to the second filament. The evaporator was vented on May 17, 2011, and a new ion gauge
with two filaments was installed. The gauge was tested and it's working fine. |
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Wednesday, May 18, 2011, 13:13, John Wong, SiC, 38295-8, HP-FEBIAD, Problems, Organics burnoff & Sintering 6x
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Wed May 18 13:12:24 2011: Target is wrapped with 3 Ta-heat shields and is installed in the evaporator which is being pumped down.
Wed May 18 23:11:42 2011: TGHT was raised to 40A and held for about 6 hours; Vac gradually came down to 2.1e-6 Torr. TGHT increased
to 90A and pressure is going up, currently vac @ 2.9 e-5 Torr. Auto heating will begin soon at 0.5A/min --> 820A. |
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Wednesday, May 25, 2011, 14:42, John Wong, UO2/C, UCx-heatboat#1, LP-SIS, Done, Batch#1: UO2/C mixing & carbonization
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Before began the carbonization process, two cameras were setup in the hotlab for monitoring the evaporator and the power supply. On duty ISAC Ops
also helps to monitor on a regular basis and to grab the striptools + cameras (twice/shift) and put this information in the ISAC Logbook with subject header:
"UCx_2011_A 'date time'", for easy search. |
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Thursday, June 30, 2011, 12:42, John Wong, UO2/C, UCx-heatboat#1, LP-SIS, Done, Batch#2: UO2/C for carbonization
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Before began the carbonization process, two cameras were setup in the
hotlab for monitoring the evaporator and the power supply. On duty ISAC Ops also helps to monitor on a regular basis and to grab the striptools +
cameras (twice/shift) and put this information in the ISAC Logbook with subject header: "UCx_2011_B 'date time'", for easy search. |
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Monday, July 18, 2011, 15:55, John Wong, Empty, 38634-3, LP-SIS, Done, Sintering TaC coating for UCx#2
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Monday, July 18, 2011, 15:53: Target oven was coated with TaC and let dry over the weekend. The target is now installed in the evaporator
and currently being pumped down. No Ta-heat shields are required for LP target ovens.
Wednesday, July 20, 2011, 11:42: Evaporator had to be vented to remove the target because Ta-heat shields were actually required for UCx |
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Wednesday, July 27, 2011, 13:02, John Wong, UC2, 38634-3, LP-SIS, Problems, UCx#2 conditioning
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Wednesday, July 27, 2011, 12:58:
Target length = 11.2cm
Total UC2/C foils = 245 discs |
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Wednesday, August 03, 2011, 17:16, John Wong, Empty, 38634-8, LP-SIS, Done, Sintering TaC coating
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Wednesday, August 03, 2011, 20:27 : Target was wrapped with 3 new Ta-heat shields and 2 around the back block. The tar from the previous
UCx conditioning remained in the chamber was removed and cleaned. Chamber is currently being pumped down, vac currently @ 8.3 e-6 Torr.
Wednesday, August 03, 2011, 21:01: Begin to step up TGHT, currently vac @ 7.5e-6 Torr. |
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Thursday, August 04, 2011, 17:46, John Wong, UC2, 38634-8, LP-SIS, Problems resolved, Repacking UCx in new target oven
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Thursday, August 04, 2011, 17:44: All the UCx material from target oven 38634-3 was recovered and repacked in this new oven. Total mass
recovered = 45.911g and packed in 10.7cm length. Target is currently being pumped down.
Thursday, August 04, 2011, 20:23: Current vac 5.6e-6 Torr. Stepping up TGHT to 104A, vac increasing slowly. Being auto heating |
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Monday, August 29, 2011, 11:21, John Wong, Empty, 38634-6, LP-SIS, Done, Sintering TaC coating oven for TaC#1
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Monday, August 29, 2011, 13:16: Target oven was coated with TaC and let dry over night. The target oven is in the evaporator and currently
being pumped down.
Monday, August 29, 2011, 15:12: Currently vac @ 8.41e-6 torr. |
 Tuesday, August 30, 2011, 16:30, John Wong, Empty, Target Boat, LP-SIS, Done, Sintering of End Caps
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Anders Mjos wrote:
Tuesday, August 30, 2011, 09:29: Target Boat wrapped with 3 Ta heat shields. 6 D-End Caps and 6 End |
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Tuesday, September 06, 2011, 17:05, John Wong, Empty, 38634-6, LP-SIS, Done, Sintering TaC coating oven for TaC#1
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John Wong wrote:
Monday, August 29, 2011, 13:16: Target oven was coated with TaC and let dry over night. The target oven |
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Wednesday, September 07, 2011, 13:33, John Wong, Empty, , , Maintenance, Changed Evaporator#1 Backing Pump oil
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Wednesday, September 07, 2011, 11:18:
IEVAP:CG2 @ 52mT before oil change.
Edi D.V changed the oil for the backing pump. WP#2011-09-07-2. CG2 currently @ 21mT. |
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Wednesday, September 07, 2011, 13:41, John Wong, TaC, 38634-6, LP-SIS, Done, TaC#1: Sintering and Organics burn-off
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Wednesday, September 07, 2011, 15:31
125 discs of TaC/C
Total discs mass = 125 |
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Friday, September 09, 2011, 10:05, John Wong, Empty, , HP-FEBIAD, Done, Sintering TaC coating
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Friday, September 09, 2011, 10:05
Target oven coated with TaC, and wrapped with 3-Ta heat shields. Chamber is currently being pumped down.
TGHT @ 140A, IG 9.2 e-6 Torr, BP 20mT. |
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Monday, September 12, 2011, 13:08, John Wong, Empty, Target Boat, , Done, Sintering TaC coating on End Caps
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Monday, September 12, 2011, 13:07
Target boat is loaded with coated TaC end caps for sintering. Target boat is wrapped with 3 Ta-heat shields.
Max TGHT = 580A |
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Tuesday, September 13, 2011, 16:53, John Wong, SiC, 38295-9, HP-FEBIAD, Done, Ready 9x
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Tuesday, September 13, 2011, 16:51
Target is wrapped with 3-Ta heat shields.
Loaded with 555 SiC discs (total mass 64.24g) |
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Wednesday, September 21, 2011, 13:23, John Wong, Empty, 38634-10, LP-SIS, Done, Sintering TaC coating on target oven for UCx#3
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Wednesday, September 21, 2011, 13:23
Target oven was wrapped with 3-Ta heatshields including the back block.
Target is in the chamber and currently being pumped down. |
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Thursday, September 22, 2011, 20:34, John Wong, Empty, 38634-9, LP-SIS, Done, Sintering TaC coating for UCx#2 (spare)
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Thursday, September 22, 2011, 20:21
Target oven was wrapped with 3 Ta-heat shields and has been pumping down.
IG currently @ 3.2e-6 Torr, BP @ 25mT. |
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Thursday, September 29, 2011, 10:58, John Wong, UO2/C, UCx-heatboat#2, , Done, UCx#3: Batch#1 - UO2/C mixture of carbonization 6x
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Thursday, September 29, 2011, 10:54
UO2/C mixture was made on Tuesday Sept 27, casted on a piece of glass and let dried in the fume hood for ~2days.
Dried UO2/C mass = 61.72g |
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