 Monday, April 11, 2011, 10:22, John Wong, Empty, 38295-9, HP-FEBIAD, Done, Fins diffusion bonding 
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Mon Apr 11 10:21:56 2011: Target is wrapped with 3 Ta-heat shields. Evaporator is pumping down.
Mon Apr 11 14:34:32 2011: Evaporator has been pumped down for over 4 hours. Vac @ 2.83e-6 Torr. (see attachment#1 for pumping
down process). |
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Tuesday, April 12, 2011, 10:30, John Wong, Empty, 38481-5, HP-FEBIAD, Done, Fins diffusion bonding
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Tue Apr 12 10:29:38 2011: Target wrapped with 3 Ta-heat shields. Evaporator is currently being pumped down.
Tue Apr 12 15:03:55 2011: Evaporator has been pumped down for over 4 hrs. Set TGHT @ 20A/ 0.066V, Vac @ 2.46e-6 Torr. (See Attachment#1
pumping down process). |
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Wednesday, April 13, 2011, 10:37, John Wong, Empty, 38481-7, HP-FEBIAD, Done, Diffusion bonding of Ta Fins for FEBIAD-HP
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Wed Apr 13 10:37:25 2011: Target is wrapped with 3 Ta-heat shields. Evaporator is currently being pumped down.
Wed Apr 13 15:28:02 2011: Evaporator has been pumped down for over 5 hrs. Vac @ 2.38e-6 Torr. (See attachment1: Pumping process)
Wed Apr 13 15:29:21 2011: Set TGHT @ 20A/0.074V, Vac 2.98e-6 Torr. |
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Thursday, April 14, 2011, 09:53, John Wong, Empty, 37810-1, HP-FEBIAD, Done, Fins Diffusion bonding
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Thu Apr 14 09:52:59 2011: Target is wrapped with 3-Ta heat shield and ready to go into the evaporator.
Thu Apr 14 11:57:29 2011: The process is on hold until the problem with the screw and the washer of the evaporator is resolved. See
ID#15 for more details. |
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Thursday, April 14, 2011, 17:03, John Wong, Empty, 38481-7, HP-FEBIAD, Problems resolved, Evap. bolt/washer problems & solutions 6x
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Thu Apr 14 14:03:17 2011: What did we see after the fin diffusion bonding of Ta fins for FEBIAD-HP (w.o#38481-7) ? :
1. A problem occurred during the FEBIAD HP Ta fin diffusion bonding and was discovered after the evaporator chamber was opened.
The washer was "wielded" on to the left leg of the target (see attachment #1: washer on target leg). |
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Monday, April 18, 2011, 18:14, John Wong, Empty, 38295-8, HP-FEBIAD, Problems, Sintering target oven coated with TaC
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Mon Apr 18 18:10:53 2011:
FEBIAD-HP target (w.o 38295-8) is coated with TaC (previously prepared on Feb 15, 2011). This target will be used for the SiC run in Oct,
2011. The target is wrapped with 3 Ta-heat shields and is in the evaporator. Pumping down of the evaporator is in process, currently vac @ |
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Wednesday, April 20, 2011, 16:42, John Wong, Empty, 38481-8, HP-FEBIAD, Done, Sintering target oven coated with TaC
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Wed Apr 20 16:39:46 2011: Target oven was coated with TaC early today. The target was allowed to dry and then wrapped with 3 Ta heat-shields.
The target is in the evaporator and it is being pumped down. Vac is currently at 9.48e-6 Torr.
Wed Apr 20 17:51:12 2011 : TGHT @ 60A/0.225V, Vac @ 5.98e-6 Torr. |
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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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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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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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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, March 23, 2011, 18:23, John Wong, , , , , Diffusion Bonding of Ta Fins for FEBIAD HP-A (w.o#38481-4)
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March 23, 2011
12:30: Target oven is wrapped with 3 Ta-heat shields. Pumping down evaporator
18:24: IEVAPIG1 is reading at 4.55e-6 Torr. The p/s will be turned on tomorrow since there is no ISAC Ops on site. |
 Friday, March 25, 2011, 17:22, John Wong, , , , , Diffusion Bonding of Ta Fins for FEBIAD HP-A (w.o#38481-4)
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John Wong wrote:
March 23, 2011 |
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Tuesday, March 29, 2011, 10:20, , , , , Problems, Loss of cooling water
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According to Jonathan Aoki, the electricians will be servicing another MCC which will result in loss of cooling water for about 8 hours starting at 16:00
March 30. We shouldn't be running the evaporator or any condensers at that time. |
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Tuesday, March 29, 2011, 10:30, , , , , Done, Loss of cooling water update
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| It's the NON-ACTIVE water that will go off. The evaporator is on sity water, so it will be OK. |
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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, 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, 15:40, Anders Mjos, Empty, , , Maintenance, Re-sealing of Glove Box
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2011-09-01:
Glove box was leaking (air/argon) between base and box. Light was shining through.
Removed old neoprene seal at base.
Resealed glove box between base and box with DAP Butylflex. No light shining through after repair.
Replaced rubber disks at 4 feed-throughs.
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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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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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