 Tuesday, June 23, 2015, 10:24, Isaac Earle, Standard Operation, Other, Other, BL1A Holding Tank Water Released
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The water in the BL1A holding tank was released to the city sewer. This water was sampled, tested, and approved for release by RPG two weeks
ago. The total volume was 510L, a combination of water from the T2 and TNF systems. The total time required to pump out the water with all
valves fully open was 1hr2m. Paperwork for the water release was completed and returned to RPG. |
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Wednesday, July 15, 2015, 10:33, Isaac Earle, Standard Operation, Target 1, Cooling, T1 & T2 Cooling System Check
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- All T1 and T2 values on XTPAGE were stripped back to April 1, 2015: All systems appear to be functioning normally, nothing unusual observed
- Expansion tank levels checked visually: T1 level at 1/2" above top sensor nut, T2 level at 1/4" below top sensor nut --> filled
to 1/2" above |
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Monday, September 28, 2015, 10:29, Isaac Earle, Standard Operation, Other, Active Sump, RH Hot Cell Lab Active Sump High Level Sensor Tested
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The RH hot cell lab active sump high level sensor was tested as part of the yearly scheduled inspection. High water level was simulated by
tilting the sensor sideways with a long pole sample scoop. The Main Control Room and Hua Yang from Nuclear Medicine were notified before the test.
The alarm sounded as expected, and a message was received in the main control room. This is a latching signal, so a Control Room operator will |
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Wednesday, September 30, 2015, 17:07, Isaac Earle, Standard Operation, Target 2, Target, Target Moves for Profile Check - Possible Motor or Control Box Failure
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The T1 and T2 targets were moved to position zero, then back to the target position today so that beam profile could be checked using the profile monitors.
Movement for both targets was done with the portable control box.
The T1 target was moved from Position 4 to Position 0, then back to Position 4 (after checking the profile) with no issues. |
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Friday, October 02, 2015, 17:25, Ron Kuramoto, Standard Operation, Target 1, Target, Raise Target to lower Rad levels for 1AM7 repair
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Today the T1MK2 target was moved from Position 4 to Position 0 to lower the Rad fields for the 1AM7 repair in the 1A Tunnel. The Rad levels were still
to high only dropping by 1000uSv/Hr to 5000uSv/Hr, so the 1AM7 repair is planned for next Tuesday's maintenance day on Oct 6th. 1A will be off till
then giving a longer cool down. |
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Monday, October 05, 2015, 15:25, Isaac Earle, Standard Operation, Other, Other, Old T2 Protect Monitor Cassette Update
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The T2 protect monitor cassette removed in April 2015 (see E-log #154) was surveyed today. It was approximately 3mSv/hr at 0.5m and 15mSv/hr
on contact. It is unlikely that this monitor will ever be cool enough for hands-on elevation adjustment that it requires, therefore it has been bagged,
labeled, and transferred to the east hot cell for storage. |
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Tuesday, October 13, 2015, 10:52, Isaac Earle, Standard Operation, Target 1, Target, T1 & T2 Target Ladder Moves
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The T1 and T2 targets were both moved from Position 0 to Position 4 at approximately 2:30am on Saturday October 10th using the portable control
box. Operations had tried to move the T1 target to position 4 using the old control system but for unknown reasons it would move to any position
except position 4 and the portable control box had to be used. The portable control box should continue to be used for T1 and T2 target moves until |
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Monday, January 18, 2016, 17:19, Isaac Earle, Standard Operation, Target 1, Cooling, T1 & T2 Packages Drained; BL1A Holding Tank Released
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The T1 and T2 cooling packages were drained to the BL1A holding tank on Jan 8 2016. The volumes were 100L and 80L respectively. Before
starting there was 350L of water in the holding tank from the 500MeV system which Steve Sapriken drained in September 2015. The T1 and T2 systems
were sampled and delivered to RPG. After receiving permission from RPG to release all 3 portions of water it was pumped into the city sewer on Jan |
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Wednesday, February 03, 2016, 17:35, Isaac Earle, Standard Operation, Target 2, Cooling, T2 MRO Work
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The following work was performed at the T2 cooling package and target between Jan 25 - Feb 3, 2016:
- Cuno water filters removed (2), and new filters installed
- Target water solenoid, H.E. secondary side solenoid, Collimator A solenoid, and Collimator B solenoids removed and replaced with new 24V DC versions |
Thursday, March 31, 2016, 11:48, Isaac Earle, Standard Operation, Target 1, Target, T1 & T2 Beryllium Target Manufacturing Complete 
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Manufacturing of a new batch of T1 and T2 beryllium targets has been completed.
The job was completed under Machine Shop Work Order #41527. Eleven 12mm T1 targets (TBP1683) and seven 10cm T2 targets (TBP1691) were completed
(exhausting all stock of the leftover EDM'd target housings). The target window profiles (TBP1695) were laser cut at an outside shop for greater |
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Monday, April 11, 2016, 13:54, Isaac Earle, Standard Operation, Target 2, Target, T2-MK2 Target Transported from BL to HC
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The T2-MK2 target was transported from the beam line to the hot cell using the transfer flask. The target was measured to be 120mSv/hr at 0.5m.
The steel shielding plug was installed in the T2 target hole to reduce upwards shine.
New beryllium target cassettes will be installed on the target ladder before it is returned to the beam line. |
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Friday, April 15, 2016, 14:54, Isaac Earle, Standard Operation, Target 2, Target, T2-MK2 Target Changes & Return to Beamline
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On April 11th the T2-MK2 target was flushed with water, then overnight with air at 5psi supply pressure. The target ladder was in Position 0 for
this procedure.
On April 12th the target was pumped using a cold trap and the Varian leak detector for approximately 2 hours. |
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Wednesday, April 20, 2016, 10:01, Isaac Earle, Standard Operation, Target 1, Target, T1/T2 Monitor Electrical Check Complete
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Mike Russell from Diagnostics Group has completed an electrical check on the T1 and T2 profile and protect monitors. He reports that both profile
monitors look fine. The T1 protect monitor looks fine except for a weak or missing signal from the halo monitor. The T2 protect monitor looks
fine. |
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Friday, May 13, 2016, 15:04, Isaac Earle, Standard Operation, Target 2, Target, T2-MK2 Position 4 Adjusted to +1.5mm Offset
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The T2-MK2 target at Position 4 has been adjust to approximately +1.5mm offset. This causes the ladder to be moved downwards, raising the beam
spot location on the target window. The potentiometer ratio at this offset is approximately 0.810 (> 0.8059 nominal ratio for position 4, and
therefore closer to Position 5) |
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Wednesday, June 15, 2016, 11:00, Isaac Earle, Standard Operation, Target 2, Target, T2-MK2 Target Moved to Position #1
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Position #4 on the T2-MK2 target has now reached the maximum beam time. The target was moved to Position #1 at the nominal elevation. This
target should be used for the remainder of the 2016 running period. |
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Monday, January 09, 2017, 15:07, Isaac Earle, Standard Operation, Target 2, Target, T2-MK2 Target Moved from BL to HC
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The T2-MK2 target assembly was moved from the beam line to the hot cell today. A maximum field of 203mSv/hr was measured at approximately
0.5m
A steel shielding plug has been installed in the T2 hole to reduce shine and allow the T2 volume to be pumped down. |
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Thursday, January 12, 2017, 09:21, Isaac Earle, Standard Operation, Target 2, Target, T2-MK2 Position 1 Beam Spot
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The beam spot on the 10cm beryllium target in Position 1 on T2-MK2 (Target ID: "OCT.06#3") was measured and photographed yesterday. A
fairly well centered spot was measured to be approximately 4.6mm wide x 5.2mm tall on the entrance window and 5.7mm wide x 7.6mm tall on the exit window
using the Nikon micrometer level. This target first saw beam on June 16, 2016. |
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Thursday, January 19, 2017, 08:55, Isaac Earle, Standard Operation, Target 1, Cooling, T1 MRO work complete
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The following work was completed on the T1 cooling package:
- water drained to BL1A holding tank
- all resevoir o-rings changed |
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Wednesday, March 15, 2017, 16:13, Isaac Earle, Standard Operation, Other, Active Sump, Meson Hall Hot Cell Lab Active Sump Water Released
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On March 13th in the morning the Meson Hall Hot Cell Lab active sump reached the high level sensor. The system responded as expected: high
level panel warning light illuminated, siren sounded, and MCR notified via "B1 RCR1 RM6 WARN". A 1L sample was delivered to RPG for analysis.
After approval, the sump was pumped out over the following two days. The procedure in Document #64834 was followed for sampling and pump-out. |
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Tuesday, October 10, 2017, 12:09, Isaac Earle, Standard Operation, Target 2, Target, T2-MK2 position 4 target changed
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The following work was performed on the T2-MK2 target assembly during the 2017 fall shutdown:
Oct 4, 2017: |
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