 Wednesday, April 17, 2013, 10:35, David Wang, ITE, Standard Operation, TM4, , I moved 5 shielding blocks back to ITE.
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| 5 shielding block had been moved back to ITE. The ITE is configured to take proton beam. |
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Thursday, April 05, 2012, 10:30, David Wang, ITE, Standard Operation, TM4, , I moved 5 shielding blocks back to ITE this morning.
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| MAA is secured .The ITE and MAA are ready for taking proton beam now. |
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Friday, April 12, 2013, 10:27, David Wang, ITW, Standard Operation, TM1, , I reconnected TM1 to ITW.
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| TM1 has been reconnected in ITW. Water interlock check for TM1 is done. |
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Thursday, July 04, 2013, 11:37, David Wang, ITW, Standard Operation, TM1, UCx, I reconnected TM1 to ITW.
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| I reconnected TM1 to ITW on 02 July.The pumping down is good so far. TM1 water interlock check is good also. |
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Wednesday, December 04, 2013, 11:05, David Wang, ITW, Standard Operation, TM4, Ta41#, I disconnected TM4 in ITW
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| I disconnected TM4 in ITW .The job took about 20minutes and I got 0.11 msv dose. |
Thursday, April 23, 2015, 09:08, David Wang, Conditioning Station, Maintenance, TM1, UCx12, Huge Leak on TM1 contaiment box window. 
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There is a huge leak on TM1 containment box window. I did a 70 psi helium pressure test on all TM1 water circuits this morning. The LD base leak rate
was 0.0XE-9 atm.cc/sec. When applying the 70 psi helium to containment box window circuit, the leak rate on LD jumped to 1XE-4 atm.cc/sec in 5 seconds.I
released the helium source right away,t but the conditioning station is full of helium molecules already, and the leak rate on LD stays at 1xE-5 |
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Friday, February 27, 2015, 09:34, chad fisher, South Hot-Cell, Maintenance, , , Hot cell Entry February 25 2015
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See attached report.
Summary:
Radio problems just before entry to cell. Inspection afterwards revealed batteries charge but battery in one radio shorts out after a couple loads/cycles. |
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Friday, July 03, 2015, 13:29, chad fisher, South Hot-Cell, Repair, TM2, , Hot Cell/ Module Fields
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Field measured at block "R" through tool port with pole monitor is 6.65 mSv/H.
There are three air hoods and two air lines currently available. |
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Monday, March 09, 2015, 09:42, chad fisher, South Hot-Cell, Development, , , Hot Cell Table Swiping
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3 swipes of the south hot cell table were taken from the target hall through the roof hatch (2 standard, 1 alpha).
Initial results of the table swipes are pending however swipes of the pool tool and end effector are clean, 0 counts, booties, gloves clean.
Fall arrest equipment has a puzzling 6000 counts, and suit 500 counts. |
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Friday, August 31, 2012, 12:10, chad fisher, South Hot-Cell, Maintenance, , , Hot Cell Maitenance
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Entered south hot cell Wednesday and replaced the pre-filter air filter as well as the front two light bulbs. Also removed two bags of compressible garbage,
one bag of metal, and of course the bagged air filter (as Joe M. expressed as interest in havung it).
Inital checks found approximately 4000 cpm on the cell side of the temporary Al. panel used during the cell entry, 2000 cpm on the tacky mats layed |
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Tuesday, March 14, 2017, 07:34, chad fisher, South Hot-Cell, Maintenance, , , Hot Cell Fields
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I have re-measured the fields in the hot cell. Fields at shield door Al cover are 101 uSv\h, in cell at the east manipulator are 245 uSv\h, and the largest
field is 1.84 mSv\h...this appears to be the high current fasteners removed from the last target. |
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Thursday, February 27, 2020, 16:08, Anders Mjos, North Hot-Cell, Maintenance, , , Hot Cell Entry
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Chad entered the NHC today to tighten set-screws on both slave side manipulators and re-align the West side slave. Work took place using the HC Confined
Space Entry procedure. See attached checklist. WP I2020-02-27-4 |
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Monday, May 03, 2021, 15:14, Frank Song, ITE, Maintenance, , , High voltage test in ITE
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| Anders and I prepared ITE high voltage test in April 30 ( Friday morning), The MAA is locked for this. |
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Wednesday, January 27, 2021, 14:30, David Wang, Cooling, Development, , , High active water system purging
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High active water are purged to holding tank at B2 level. There should be around 48 gallons are purged out of system. No purging on dump circuits
on both ITW/ ITE. |
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Monday, April 16, 2012, 16:17, Bevan Moss, Conditioning Station, Standard Operation, TM1, No Target, High Voltage Test
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A high voltage test was completed on a target free TM1 in the conditioning station. Only the turbo pumps on the target module were operational
due to phase 2 construction. Testing started at 2:51PM with the following vacuum gauge readings, 1.6 x 10^-6 Diagnostics Box, 7.4 x 10^-7 Service Cap,
2.0 x 10^-6 Containment Box. Voltage was increased ~3kV at a time every minute until 21 kV was reached with a current of 0 uA. Voltage was then increased |
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Tuesday, October 14, 2014, 17:19, Anders Mjos, Conditioning Station, Standard Operation, TM3, No target, High Voltage Conditioning
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Wednesday, October 14, 2014
The BIAS voltage was brought up between 1:30pm and 5pm. Sparks tripped the BIAS power supply at voltages between 20 - 24 kV. Multiple attempts
were made. The current was about 50-60 uA. |
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Wednesday, January 07, 2015, 09:31, Anders Mjos, Conditioning Station, Development, TM2, , High Voltage Conditioning
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No Source Tray installed. Loop on cooling circuit D. All other circuits blanked off.
Voltages stated below are set point voltages. These corresponds reasonably well with the local read backs on the power supplies. The read back
voltages in EPICS are somewhat lower. |
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Wednesday, November 02, 2011, 13:12, Bevan Moss, Conditioning Station, Standard Operation, TM4, SiC#26 High Powered, High Voltage (HV) testing
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The silicon carbide targets voltage was raised to 42 kV today before continuous current draw was observed. It took roughly 10 minutes to raise
the module to this voltage with only the occasional spark. The ION gauge reading was 2.0 x 10^-6 T, The service cap IMG 3.6 x 10^-6 T, and the secondary
vacuum was 4.5 x 10^-6 T. Setup check and conditioning was performed by Pierre. |
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Friday, November 18, 2011, 16:29, Bevan Moss, Conditioning Station, Standard Operation, TM1, N/A, High Voltage (HV) testing
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TM1 was high voltage tested without a target on November 16, 2011 with Don Jackson, Pierre Bricault, and Bevan Moss. The module was able to hold
up to 25 kV but between that and 32 kV there was lots of discharge which could be measured in the vacuum. See the attached plot for the voltage current
and sparks. |
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Friday, April 08, 2016, 08:13, Anders Mjos, ITE/ITW Cooling, Maintenance, , , High Active Water Resistivity
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The high active water resistivity took a long time to recover after the upgrade to the water cooling circuit. The system needed about a month (from end
February to end March) to recover to nominal values. See attached plot of archiver data.
TM1 has now been connected in ITW and the water resistivity remains > 8 MOhm cm, which should allow normal operation. However, the resin is |
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