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Reports until 08:42, Tuesday 18 July 2023
H1 SYS (IOO, ISC, SEI, VE)
jeffrey.kissel@LIGO.ORG - posted 08:42, Tuesday 18 July 2023 - last comment - 09:28, Tuesday 18 July 2023(71441)
H1 (W)HAM1 Feedthru Photo Inventory 
J. Kissel

Here's an inventory of the (W)HAM1 feedthrus as they stand on July 18 2023. Comments will show pictures of each feedthru, separated (and labeled) by feedthru.

As we consider 
    - changing the seismic isolation system in HAM1 from an iLIGO stack with an aLIGO HAM ISI,
    - whether we should keep the second LSC REFL detector
    - including a jitter attenuation cavity
    - more or less suspended optics
for the future of HAM1 at both sites, it's important to get an up-to-date inventory of what feedthrus are available.
Also, a good portion of the WHAM1 integration issues relate to drawing updates (see IIET:5118 Ticket Tree), for which this inventory will help as well.

Here're the pertinent drawings
Systems Layout (as it stands at -v4): D0901821
Flange Layout (as it stands at -v8): D1002872
In-vac Cable Routing (as it stands at -v4): D1300075

One can see some further discussion in T2300221.
Comments related to this report
jeffrey.kissel@LIGO.ORG - 08:53, Tuesday 18 July 2023 (71442)IOO, ISC, VE
Link 

Here's pictures of WHAM1-D4
Images attached to this comment
jeffrey.kissel@LIGO.ORG - 08:57, Tuesday 18 July 2023 (71443)
Link 

Here's pictures of WHAM1-D5
Images attached to this comment
jeffrey.kissel@LIGO.ORG - 09:01, Tuesday 18 July 2023 (71444)
Link 

Here's pictures of WHAM1-D6
Images attached to this comment
jeffrey.kissel@LIGO.ORG - 09:04, Tuesday 18 July 2023 (71445)
Link 

Here's pictures of WHAM1-D1
Images attached to this comment
jeffrey.kissel@LIGO.ORG - 09:08, Tuesday 18 July 2023 (71446)
Link 

Here's pictures of WHAM1-D2
(which is in-between and beneath HAM1 and HAM2 which butt up against each other, so the pictures kinda stink. Sorry! But, it looks like there's quite litte on this feedthru anyways).
Images attached to this comment
jeffrey.kissel@LIGO.ORG - 09:12, Tuesday 18 July 2023 (71447)
Link 

Here's pictures of WHAM1-D3
Images attached to this comment
jeffrey.kissel@LIGO.ORG - 09:17, Tuesday 18 July 2023 (71449)
Link 

Here's pictures of WHAM1 "East" (-Y) door
Images attached to this comment
jeffrey.kissel@LIGO.ORG - 09:19, Tuesday 18 July 2023 (71450)
Link 

Here's pictures of WHAM1 "South" (-X) door
Images attached to this comment
jeffrey.kissel@LIGO.ORG - 09:23, Tuesday 18 July 2023 (71451)
Link 

Here's pictures of WHAM1 "West" (+Y) door
(with a lot of bellows going to ISCT1.)
Images attached to this comment
arnaud.pele@LIGO.ORG - 09:24, Tuesday 18 July 2023 (71452)
Link

Thanks Jeff for those pictures. I added a link to this alog from the WHAM1 flange layout: https://dcc.ligo.org/D1002872-v8 for reference.
If you spot any additional redlines from the posted -v8 'D1002872-v7-redline.pdf', please add them to the DCC.

jeffrey.kissel@LIGO.ORG - 09:28, Tuesday 18 July 2023 (71454)
Link 

Here's pictures of the feedthrus on the top WHAM1
The first three pictures (619-621) are viewed on a ladder in front of the "East" (-Y) door, looking toward the +Y direction.
The second two pictures (622-623) are viewed on a ladder in front of the the "South" (-X) door, looking toward the +X direction.
Images attached to this comment
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