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Reports until 16:15, Thursday 16 June 2022
H1 ISC (ISC, SYS)
keita.kawabe@LIGO.ORG - posted 16:15, Thursday 16 June 2022 - last comment - 09:21, Wednesday 14 June 2023(63625)
List of HAM1 optics, revised

This is an updated table reflecting all work that happened since Oct/2013 including our recent HAM1 incursion. The previous version from Oct/2013 is in alog 7844.

Systems, please update Optics BOM and the drawings in D1000313. Use attached as a reference. M18 needs to be newly added to D1000313 as it wasn't added when they installed REFL LSC_B sensor. M2, M12 and BDV2 need to be merely  updated.

Bold font means that the information is not up to date in D1000313. Bold Italic with an underline means that the information in D100313 is not up to date AND it was installed/swapped in the latest incursion.

(Also note that there was a mix-up in the S/N in the old table. The optic we extracted from M2 had a serial number of 0944. In the old table, M2 was supposed to be 0990, OTOH 0944 was supposed to be M15. I don't know the S/N of M15 as of now but assume that it's 0990.)

ID Type and DCC S/N or marking Mount Path etc. comments
M1 2" 50% IR, E1000671-02 ? RH REFL air-vac splitter. 2nd 50:50 common to LSC/ASC REFL path. No change.
M2 2" 50% IR, E1000671-02 ? LH, V-dump behind. REFL vac steering. 3rd 50:50 common to LSC/ASC REFL path.

New. Used to be HR, E1100048 (ID 0944).

AOI is large (larger than 50deg), reflectivity 41% in situ. alog 63544

RM1 2" Curved +1.7m HR IR, E1100056-01 ICS ASSY-D1001396-24 HTTS REFL vac MM TT1 No change.
RM2 2" Curved -0.6m HR IR, E1100056-03 ISC ASSY-D1001396-22 HTTS REFL vac MM TT2 No change.
M5 2" Curved +1.7m HR IR, E1100056-01 3 RH with dump REFL vac MM fixed No change.
M6 2" 50% IR, E040512-B1 (as opposed to E1000671-02) IO824-01 on the barrel LH with pico REFL vac LS/AS splitter. 4th 50:50 common to LSC/ASC  REFL path. No change.
M7 2" HR IR, E1100048 ? LH REFL air steering No change.
M8 2" HR IR/GRN, E1000425 ? Peri wth dump POP/ALS peri No change.
M9 2" HR IR/GRN, E1000425 ? Peri with dump POP/ALS peri No change.
M10 2" HR IR, HT GRN, E1000669 ? LH POP/ALS dichroic No change.
M11 2" HR GRN, E1000652 ? LH with dump ALS steering No change.
M12 2" 95% IR, E1000671-v1-02 ? LH POP vac/air splitter New. Used to be  90:10 (ID IO820-09). alog 63523
M13 2" HR IR, E1100048 ? RH with dump PSL reference No change.
M14 2" 90% S-pol IR, E040512-B4 IO823-?? on the barrel RH REFL splitter for high power dump No change.
M15 2" HR IR, E1100048 0990? RH pico with dump POP vac steering for LSC No change.
M16 2" HR IR, E1100048 0965 RH with dump POP air steering No change.
M17 2" 50:50 IR for P, E1000671 ? RH 1st 50:50 common to LSC/ASC REFL path. No change.
M18

2" 50:50 IR for P, E1000671

? RH LSC REFL A and B splitter. No change. Doesn't exist in D1000313.
M101 1" HR IR, E1000595 ? 1" LH with dump part of REFL WFS sled No change.
M102 1" HR IR, E1000595 ? 1" LH with dump part of REFL WFS sled No change.
M103 1" 50% IR, E1000671-02 ? 1" LH pico part of REFL WFS sled No change.
M104 1" HR IR, E1000595 ? 1" LH pico with dump part of REFL WFS sled No change.
L101 1" f=+334mm, E1000845-03 ? 1" lens part of REFL WFS sled No change.
L102 1" f=-167mm, E1000845-08 ? 1" lens part of REFL WFS sled No change.
L1 1" f=+222mm, E1000845-02 ? 1" lens for LSC REFL No change.
L2 f=+334mm, E1000845-10 ? 2" lens for LSC POP No change.
BDV1 HR IR, old iLIGO N/A (no marking) BDV for REFL air No change.
BDV2 HR IR, E1000048 2.0-0947 BDV for POP air No change. alog 45279
HW1 1" IR half wave plate from ALS stock N/A (no marking) rotator mount for REFL

No change.

Images attached to this report
Comments related to this report
jeffrey.kissel@LIGO.ORG - 09:21, Wednesday 14 June 2023 (70439)FRS, SYS
The IIET tickets that are open to address the "DOCS_NEEDED" call for help in this alog are:
    IIET:11724 ECR: Second REFL LSC RF Photodetector
    IIET:23545 Attenuate light on in-vac ISC sensors in HAM1
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