 Sun Sep 19 09:11:34 2021, CB (remotely), Baking RasPi status
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Accessed Pi remotely
( 1. Without the Internet, the Pi has no way of knowing what time is it.
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Fri Sep 17 16:42:25 2021, JM RSS ML + OG, CARME Realignment + Thermocouple installation 8x
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Laser surveying team worked till 11. Chamber was too high by 3mm close to the jet target and 6mm by the turbo pump (towards the dipole).
CARME lowered appropriate amount using bolts under CARME feet. Height checked using a laser on the centre point line of the middle flange turbo
end and mid point on the front of the chamber (see images). During lowering front foot swapped and valve supports moved slightly to give more clearance |
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Thu Sep 16 15:24:29 2021, JM RSS, CARME vented + thermocouple feedthrough
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Chamber has been vented back to atmosphere.
Motor was able to be pulled back to insert bloacking pin once at atmosphere.
Thermocouple feedthrough constructed with 4 thermocuples attached. Internal thermocouples each ~200mm in length with external thermocouples each |
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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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Fri Sep 10 18:09:14 2021, CB RSS ML, Leak test + baking system test
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Leak tested CARME via He leak tester + He
bottle. No leaks could be found. Some
indication of potential leak close to
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Fri Sep 10 10:50:55 2021, CB RSS ML, Pressure after overnight pump down
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Pressure found in 10-7 mbar range.
Decided to leak test anyway for safety.
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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 Sep 8 17:03:07 2021, CB RSS + OG NB, Six feedthrough flanges mounted 23x
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Continued to mount flanges as per previous ELOG entry.
Peter also remarked that the wires look a bit loose inside the holes, although this is how they were during
dirty tests in Edinburgh.
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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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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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Tue Sep 7 12:40:43 2021, CB ML + RH, CARME survey preparation
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Rudi and survey group representative came
to CARME.
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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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Mon Sep 6 14:13:17 2021, CB ML, Motors mounted - first attempt
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Mounted both motors on CARME. Started
with outside motor.
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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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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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Fri Sep 3 14:14:40 2021, TD, Leybold IE514 manual & calibration data
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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 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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Thu Sep 2 21:04:26 2021, CB RSS ML + DR OG, Gate valves mounted + pump down 6x
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Mounted both gate valves and support. Gate
valves could not be installed one bolt
rotated from 90 degrees as per drawings
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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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