 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. |
 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 |
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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Thursday, October 02, 2014, 11:26, John Wong, Empty, , , Maintenance, Broken insulators
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Thursday, October 02, 2014, 11:22
It was found that after the last process, Evap#2 has broken insulators - the cylinder insulator that supports the target centre legs and the block
insulator that supports the terminals. |
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Friday, October 03, 2014, 13:02, Anders Mjos, Empty, , , Maintenance, Broken insulators
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John Wong wrote:
Thursday, October 02, 2014, 11:22 |
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Wednesday, November 26, 2014, 14:09, Laura Lambert, , , , Maintenance, OMEGA-IR dark patch and backing pump trip
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Wednesday, November 26, 2014, 13:47
OMEGA-IR laser had a dark patch on it [see picture]
Cleaned window, still dark patch |
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Thursday, December 11, 2014, 10:20, Laura Lambert, , , , Maintenance, water supply shut off for lab closure over holidays
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Thursday, December 11, 2014, 10:17
water supply and return valves closed for lab closure over the holidays.
all taps leading into evap2 have been closed. |
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Wednesday, January 14, 2015, 13:46, Anders Mjos, Empty, , , Maintenance, Pumping down for water leak test
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Wednesday, January 14, 2015, 13:46: Roughing
Wednesday, January 14, 2015, 14:57: Starting turbo
Monday, January 19, 2015, 13 |
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Thursday, January 22, 2015, 14:21, Anders Mjos, Empty, , , Problems resolved, CG1A replaced
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| See previous e-log entry for details |
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Thursday, June 18, 2015, 11:39, Rick Maharaj, , , , , Installation of Extraction Electrode Insulator - New Material
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Tuesday June 16, 2015
An Extraction Insulator ITD0381 made from a different grade of AiN was installed in Evaporator 2 for testing purposes. The sub assembly included
the SIS Restraint Housing ITD0389, New Extraction Insulator ITD0381, Repeller Electrode ITD0377, Extraction Electrode ITD0374 with fingerstock mounted. |
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Thursday, July 30, 2015, 17:07, John Wong, , , , Maintenance, Connect NALCW to EVAP1
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Thursday, July 30, 2015, 17:02
EVAP1 cooling system is now on the NALCW. The city water has been removed from the system.
Tested all the cooling system interlocks by shutting off each individual valve, and the main supply valve to the lab - All Passed! |
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Friday, July 31, 2015, 15:10, John Wong, , , , Maintenance, Installed leftside port
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Friday, July 31, 2015, 15:09
The left side port was installed on the evaporator #2. Leak check was performed and no leak was detected.
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Monday, August 24, 2015, 12:58, John Wong, , , , Maintenance, Replacing turbo pump, IEVAP2TP1
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Monday, August 24, 2015, 12:54
The turbo pump was found to be faulty. The pump couldn't get on full speed and eventually timed out. Vacuum group inspected the pump
and it is time for a service. |
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Thursday, September 24, 2015, 09:48, Laura Lambert, Empty, 41077-5, , In progress, Sintering TaC coating container for UCx Target
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Thursday, September 24, 2015, 08:39
IGP1 = 6.5e-7Torr
HS water valves opened, no leaks detected. |
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