 Tue Sep 7 11:37:05 2021, CB RSS + OG, Update on strain relief screw issues
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Tested every strain relief. M3 screws get stuck at different points in each hole. Only one good hole out of 16
(2x8).
They were tested in Edinburgh - unclear if this is a result of baking at high temperatures, or bad screws, or
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Tue Sep 7 14:10:02 2021, CB RSS + OG, Strain relief SS support re-drilled
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Re-drilled SS supports in order to fit M3 screws.
Used hand tool cleaned with alchool for 6 of the 8.
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Wed Sep 8 10:52:54 2021, CB RSS + OG, First feedthrough flange mounted 
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Assembled feedthrough flange with re-cut
SS support bracket. M3 vented on the
sides, M3x30 partly threaded on top. Top
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Thu Sep 9 13:01:07 2021, CB RSS + OG, All feedthrough flanges mounted and motor rotated
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Moved cables that touched neg pumps. See
photos. Please bear in mind perspective.
Note avoiding touching chamber
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Wed Nov 3 16:39:01 2021, CB RSS + NP DR NK ML, Interaction chamber lifted in place
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Prepared to move interaction chamber in place. Ok CARME side, flange has M10 bolts. On interaction chamber side i.e. bellows it has M8 bolts.
DS designed this to have loose fit under assumption of M10 side actually being 3/8 holes i.e. 9.9 mm. However holes are 10.2 mm. Furthermore
Grossmontage suggest loose fit will be damaged in baking in the long term. |
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Tue Aug 31 18:34:41 2021, CB RSS + DR OG, CARME on Al stand
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Lifted CARME off the floor and mounted feet on sides. It was found impossible to put four bolts for each foot
due to alignment conflict. Three bolts were mounted per foot instead.
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Thu Sep 2 10:41:16 2021, CB RSS + DR OG, CARME connected to the CRYRING
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Connected CARME to the CRYRING via tube
plus bellows. See attach.
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Fri Nov 5 12:27:11 2021, CB RSS + DR NP ML US, First pump down of YR09
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Tightened all flanges.
Added Pirani gauge and third IE514 to interaction chamber.
Stated pump down. Around 100 mbar on Interaction chamber Pirani gauge very loud metallic noise is heard. Found bellows between CARME and interaction |
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Wed Nov 3 11:18:11 2021, CB RSS + DR NK ML, Leak closed
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Found CARME at 1.0E-6 mbar. Beginning leak test.
Found leaks in the same location as before. Roughly 1~3E-8 mbar l second vs. base leak of 1E-12 |
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Wed Sep 1 17:14:16 2021, CB RSS + DR ML, CARME mounted on the CRYRING
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Lifted CARME with Al support on the
CRYRING. No issues during transportation.
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Tue Aug 31 07:09:54 2021, CB RSS (rem) JM, Preparation for mounting 6x
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(30 August 2021)
The current state of YR09 is as per attach 1. CCC has been removed, but additional pumps and gauges remain. Some
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Tue Aug 31 11:55:11 2021, CB RSS, Last preparations for CARME lift
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Found strut bolts in the bag with
spherical washers. Mounted the struts and
the washers. See attach 1.
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Wed Sep 1 12:05:28 2021, CB RSS, Preparation for CARME on CRYRING YR09
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Mounted additional cross member for motor
support. See attach 1
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Fri Sep 3 08:12:39 2021, CB RSS, Pressure after overnight pump down
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03.09.2021 09:00 5.27E-7 mbar
03.09.2021 13:00 4.08E-7 mbar
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Fri Sep 3 08:14:51 2021, CB RSS, Issues foreseeable splitting CARME 7x
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In order to install the detector supports
and eventually install the detectors
themselves CARME must be split and
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Fri Sep 3 15:55:00 2021, CB RSS, Issues with cable clamps
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Attempted to mount cable clamps for strain
relief on inner part of Allectra
feedthroughs.
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Sat Sep 4 15:54:50 2021, CB RSS, Motor mounting preparation
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Prepared the motors to be mounted and
found all components required. No issues.
May have to partly dismount again to fix
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Sat Sep 11 16:01:44 2021, CB RSS, Preparations for shutdown
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Found CARME pressure at 2E-7 mbar
Raspberry pi took pictures until 4 am and
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Tue Oct 5 17:30:01 2021, CB RSS, NEG activation tests
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Found D2000 #1 activated and at 250C (25W)
to prevent getting dirty when other NEGs
are activated. See previous entries.
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Wed Oct 6 09:47:30 2021, CB RSS, Neg activation tests -2
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Attempted activating 2xUHV1400 connected to top C4, channel #3 with P 300 W (450 C?), t rise 30 min, t hold 90
min as yesterday
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