 Monday, May 13, 2013, 12:53, Nikita Bernier, BeO, , , Done, Sintering BeO pellets #6 
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Nikita Bernier wrote:
Tuesday, May 07, 2013, 16:48 |
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Monday, May 13, 2013, 17:17, Nikita Bernier, BeO, , , Done, Sintering BeO pellets #6
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Nikita Bernier wrote:
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 Tuesday, May 28, 2013, 17:50, John Wong, , Target Boat #2 , , Done, Sintering TaC coated end caps
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Tuesday, May 28, 2013, 17:36
The target containers endcaps were coated with TaC solution and let dry.
Each cap is wrapped with a small piece of graphite foil and inserted in the target boat. |
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Tuesday, August 27, 2013, 17:01, John Wong, , targetboat (TaC coated), , Done, Sintering TaC coated regular caps
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Tuesday, August 27, 2013, 16:48
Target boat is filled with TaC coated endcaps (brown) and some partial sinterred ones (gray) from before. (see attachment#1).
The container is wrapped with Ta heat-shield. |
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Thursday, August 29, 2013, 11:53, Laura Lambert, , targetboat (TaC coated), , Done, Sintering TaC coated regular caps
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John Wong wrote:
Tuesday, August 27, 2013, 16:48 |
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Tuesday, September 17, 2013, 11:21, John Wong, Nb, target boat #3 (brand new!) , , , Nb thermo treatment (Bob's samples)
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Tuesday, September 17, 2013, 11:14
Target boat contains 5 Nb discs. 3 discs are wraps with 0.001" thin of Nb foil (99.8% pure), and 2 are wraps with 0.001" Ta foil
(see attachment#1) |
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Thursday, September 19, 2013, 11:56, Laura Lambert, Nb, target boat #3 (brand new!) , , , Nb thermo treatment (Bob's samples)
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John Wong wrote:
Tuesday, September 17, 2013, 11:14 |
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Thursday, September 19, 2013, 17:02, John Wong, Nb, target boat #3 (brand new!) , , , Nb thermo treatment (Bob's samples)
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Laura Lambert wrote:
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Friday, September 20, 2013, 14:59, John Wong, Nb, target boat #3 (brand new!) , , , Nb thermo treatment (Bob's samples)
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John Wong wrote:
Tuesday, September 17, 2013, 11:14 |
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Monday, September 23, 2013, 16:18, John Wong, Nb, target boat #3 (brand new!) , , , Nb thermo treatment (Bob's samples)
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John Wong wrote:
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Tuesday, October 29, 2013, 15:50, Anders Mjos, , , , In progress, Copper bars on TGHT and TBHT
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Tuesday, October 29, 2013, 15:50: Pumping down
Wednesday, October 30, 2013, 09:32: Turbo started
Wednesday, October 30, 2013, 14:50: The Cu-bars were heated to 600A and 300A for TGHT and TBHT respectively. |
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Friday, November 01, 2013, 17:20, Anders Mjos, , , , Problems, Backing pump needs new filter
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The source of the poor vacuum in the backing line seems to be related to a dirty filter. We will try to find a replacement filter next week.
The problem seem to have started September 17th, when backing preassure CG1A went from 40 mTorr to 130 mTorr. CG1B remained around 30 mTorr. |
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Monday, November 04, 2013, 14:02, Anders Mjos, , , , Maintenance, Backing pump replaced
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Anders Mjos wrote:
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Wednesday, November 06, 2013, 17:36, John Wong, TaC, Target Boat #2, , In progress, Testing TaC matrix coating
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The purpose of this experiment is to improve the TaC coating mixed with other metals as additives. The coating solution will be sprayed on Ta metal
(0.015" thick, same thickness as the target container).
The samples will be sintered at ~ 1800C. Once the process is completed, a graphite tube will be inserted into the tube, and then re-heated |
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Thursday, November 07, 2013, 09:38, Anders Mjos, , , , Problems resolved, Heat Shield cooling line twisted
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See attached photo.
The Heat Shield has been taken to the Machine Shop for repair.
Friday, November 08, 2013 |
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Monday, January 20, 2014, 16:35, Laura Lambert, Empty, Ta-Target boat, , , Sintering Ta target boat with TaC coating
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Monday, January 20, 2014, 16:32
A new target boat was sprayed with TaC coating and let dry this morning.
The target boat is NOT wrapped with Ta-heat shield. |
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Friday, March 07, 2014, 10:34, Anders Mjos, , , , Problems resolved, TGHT2 water flow signal
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There was no signal going from the coils to the PLC. After manipulating the connection points on the coil a signal could again be established. Frequency
is ~ 40Hz. |
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Monday, March 10, 2014, 11:45, John Wong, , , , Maintenance, Replaced Backing Pump hose
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Monday, March 10, 2014, 11:44
Rick replaced the backing pump hose from 1.5" to 2.0" for better flow. And the HEPA filter was checked - it looks OK.
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Monday, March 10, 2014, 11:52, John Wong, , , , Problems resolved, The Chiller is down
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Monday, March 10, 2014, 11:45
The chiller tripped off on March 7, 2014.
Water is not flowing into the chiller; paddle wheel shows no signal.
Tried turning on the chiller locally; a few seconds |
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Friday, May 30, 2014, 13:15, Cameron Hodgins, , , , In progress, Sintering several carbides on tantalum foil backing
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Pressure down to 7.1e-7 Torr. Water valve to heat shield was opened; pressure remained stable.
Current turned up to 40 A for now. Will increase at 2 A/min up to 500 A over the weekend, then on Monday we will turn it up to 600 A and
check the temperature. |
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