 Tuesday, January 22, 2013, 16:14, John Wong, , , LP-SIS, Done, Heating RFQ components & measuring temperatures 
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Tuesday, January 22, 2013, 12:38
This is to test the newly developed RFQ target to be commissioned this year. The purpose of this test is to see how well the RFQ components
can sustain the high temperature. One thermocouple is connected inside the target and the other is connect outside of the Cu heat-shield. RGA |
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Monday, February 18, 2013, 16:43, John Wong, Empty, , LP-SIS, Done, Sintering TaC coating on the RFQ target container
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Monday, February 18, 2013, 16:28
The RFQ target container is coated with TaC and ready to be sintered. No Ta-heat shields are used. This container will be used for
the SiC#28-LPSIS-RFQ. |
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Friday, February 22, 2013, 15:55, John Wong, SiC, , LP-SIS, Done, Sintering SiC#28-RFQ
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Friday, February 22, 2013, 15:49
The LP-SIS RFQ target container was previously coated with TaC and sintered up to ~1500C (TGHT @ 600A, TBHT @ 300A).
The container is loaded with 325 discs of SiC, a total of 10.9cm in length. |
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Friday, April 19, 2013, 09:39, Rick Maharaj, Empty, , , Done, thermocouple Feedthru
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A thermocouple feedthru was installed via 9 pin sub-D connector. It runs from the the conflat cross on the top of the evaporator to the upper 9
pin connector of the target mounting plate. |
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Tuesday, May 07, 2013, 16:53, Nikita Bernier, BeO, , , Done, Sintering BeO pellets #6
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Tuesday, May 07, 2013, 16:48
5 BeO pellets were made. Each weights about 1.3 g (including org mass). |
 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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Friday, October 04, 2013, 16:21, John Wong, Empty, , LP-SIS, Done, Sintering TaC coating on a LP target container to be used for C-grv tube test
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Friday, October 04, 2013, 15:37
A LP target container is coated with TaC. The container is wrapped with 3 layers to heat shield.
This container will be used for the graphite tube test. |
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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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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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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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Thursday, March 27, 2014, 18:04, John Wong, , , TARGET BOAT, In progress, Studying WC sintering on Ta surface
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Thursday, March 27, 2014, 17:38
TEST #1
WC slurry was prepared in non-aqueous environment (see lab book for procedures). The solution was dripped on two Ta plates (3.1cm2) and let |
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Thursday, April 24, 2014, 18:13, John Wong, , , TARGET BOAT, Done, Tests: Sintering carbon Mesh coated with WC
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Thursday, April 24, 2014, 17:25
The purpose of this experiment is to see if the carbon mesh is suitable for coating and sintering with uranium carbide. For this test, the
mesh is coated with WC slurry (previously prepared). |
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Thursday, May 29, 2014, 18:16, Cameron Hodgins, , , TARGET BOAT, In progress, Sintering several carbides on tantalum foil backing
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Purpose: Sinter one sample of each of TiC, VC, Cr3C2, ZrC, NbC, Mo2C, TaC, and WC on 5x10 mm tantalum foil to see if the samples are usable for SEM.
Samples were prepared using a solution of PEG (2.56 g), PVB (2.45 g), paraffin oil (1.12 g), MEK (15 mL), and EtOH (23 mL). Slurries made using
0.0013 mol of each carbide with ~230 uL of the solution. Applied via paintbrush onto 5x10 mm tantalum foil. |
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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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Friday, June 06, 2014, 16:01, Cameron Hodgins, , , TARGET BOAT, In progress, Sintering several carbides on tantalum foil backing
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Auto-ramp started. Max current = 500 A, voltage = 11.05 V. Current is being increased at 2 A/min. In the first 20 minutes, the pressure went up to about
10E-6 T, but has slowly decreased since then. Everything looks ok. The system will be left until Monday morning (June 9th). |
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