 Sun Oct 31 07:29:17 2021, CB JM + RSS OG, Detectors mounted on plate in CARME 8x
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(Wed 27 October)
Dismounted plate from rod. Dismounted broken detectors from plate and placed back in box. Dismounted "dog leg" struts and replaced
with fully un-threaded struts. |
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Sun Oct 31 07:21:09 2021, CB JM RSS, Detectors arrived in GSI 6x
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(Tue 26 October)
Two new CARME DSSD arrived in GSI and collected. Visually inspected both sides. No obvious damage. Photos attached. Second detector (3335-2)
was shipped in upside-down box. Does not seem to have made any difference. |
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Fri Oct 29 15:09:27 2021, CB JM + RSS OG DR, Preparation to mount new DSSDs 6x
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(Mon 25 October - Tue 26 October)
Considered different strategies to mount DSSDs inside CARME, while waiting for 2x new DSSD to arrive.
Plan A: Mount DSSDs on plate on the bench, slide plate on rod, then attach cables, then attach strain relief |
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Sat Oct 23 12:58:11 2021, JM, GSI vacuum and bakeout testing summary
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Attachment 1 shows the pump-down of the CARME chamber at GSI before installation of kapton cabling inside the chamber and mounting of the chamber on
the ring. Discontinuity in the plot is from switching between the pirani gauge and IE514 gauge. The pumping of the chamber in the turbo regime follows
the power law where P ~ 1/(nt) due to outgassing from the chamber being dominated by water outgassing which has an n ~1 dependence (for first order |
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Fri Oct 22 13:22:48 2021, TD, CARME FEE64 adaptor PCB 10x
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Fri Oct 22 13:11:26 2021, TD, MSL type TTT14 assembly drawings & pin assignments
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Thu Oct 21 20:26:44 2021, JM TD, Thermocouple and Connector cables 10x
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NEG pump electrical connections tested - all connections sound.
Detector carriers have been redrilled and are currently being cleaned. Carriers were checked within the chamber, mounting much easier with new
hole. Distances to NEG feedthroughs and thermocouple feedthrough from the carrier also checked. NEG feedthroughs have sufficient separation now moved, |
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Mon Oct 18 16:25:11 2021, JM RSS TD, NEG rotation + cable removals
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Kapton cabling and the broken ceramic detector holder have been separated. Required holding jacking plate in a vice and using lots of propanol to wet
the jacking screw. A long set of kapton cabling has been removed from the other side of the chamber which can be used when mounting the detectors. The
feedthrough flange was re-mounted on that side with no kapton cabling. |
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Sun Oct 17 11:48:48 2021, TD RSS, Sunday 17 October 14x
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Looking downstream the RHS motor assembly has loose green/yellow (gnd?) see attachment 1
Install blank base plate to trial install in downstream CARME chamber. The rod is just through all of the mounting holes - see attachments 2 & 3
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Sat Oct 16 17:25:47 2021, RSS TD, Broken detectors
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One of the detectors was damaged while mounting (see pictures 1-3).
Second detector was found already damaged when opened (see pictures 4-5). |
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Fri Oct 15 19:37:12 2021, RSS TD + DR, Friday 15 October 8x
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Ring seal is out. See picture 1.
Bellow (towards CARME) was installed in the gas jet chamber. Attached are some pictures. |
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Thu Oct 14 15:54:47 2021, TD RSS, Thursday 14 October
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Attachment 1 - what is function of the 4x c/s holes indicated?
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Wed Oct 13 15:28:22 2021, RSS TD + OG, Split funnels 7x
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| Split funnels installed on 4 (of 8) 2x78 way D connector feed-throughs. |
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Wed Oct 13 15:16:12 2021, TD, Orientation of 2x 78 way D connector feedthroughs
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Looking downstream
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Wed Oct 13 12:06:09 2021, RSS TD, Flanges cleaned 12x
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RSS & TD had some success cleaning the COF600 flange surfaces of the staining and residues observed when the downstream COF600 section was opened yesterday
https://elog.ph.ed.ac.uk/CARME/118
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Wed Oct 13 11:59:23 2021, TD, [How to] Open COF600 copper wire seals
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Use the M10 jacking points provided top/bottom and
left/right on the upstream and downstream sides of the
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Tue Oct 12 13:54:21 2021, RSS TD + OD DR, CARME opened 20x
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With the assistance of Oemer and Davide all of the M22 bolts removed from the downstream section of the CARME chamber. To separate the downstream section
from the
upstream sections it was necessary to use a lever between M10 bolts screwed into the lift points of adjacent sections of the CARME. The upstream sections |
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Tue Oct 12 09:22:37 2021, RSS TD + OG DR, Motors problem solved
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Neg and ion cables were taken off and were put in the box.
Top support was taken off.
Motors are rotating again. Have to be careful with the position of the limit switches. |
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Mon Oct 11 11:24:16 2021, RSS TD ML, Valve support and cable labeling
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Split funnels were given to Oemer for cleaning. Have received them back after lunch.
Valve support is installed again (see picture 1).
Ion pump was connected but not activated. Michael will help in doing so. No vacuum support to help will RGA. Will proceed without it. |
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Sat Oct 9 09:47:33 2021, CB, To do list for next week
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0. Give split-funnels to OG or Grossmontage to clean. Mount back foot support for gate valves. Critical when we split.
1. Wait for vacuum division to come to install: IE514 cables to current CM52 module, ion pump cables + controls + turn on, RGA head + program
+ turn on |