Reports until 12:10, Wednesday 16 April 2025
H1 ISC
camilla.compton@LIGO.ORG - posted 12:10, Wednesday 16 April 2025 (83945)
ISC Components from HAM1, all individual optics ready.

Matt, Elenna, Camilla

All individual optics removed from HAM1 have been inspected, cleaned and if needed swapped. Progress alogs: 8387583858.

The optics are in pans 1, 2 and 3. We still need to inspect the mirrors on the pericope and might swap more black glass beamdumps to DLC coated SS, but otherwise we are ready to install back into HAM1.  Optics that were changed are noted below, this has been updated in the D1000313 googlesheet. All removed optics are stored with the other optics in the staging building. 

Optic
Original 
New 
Note
M1
BS50%1064
E1000671-02
S/N 052
BS50%1064
E1000671-02
Note below *
Original Optic had specks on the center that couldn't be removed with FC 
M10
HR1064HT532 E1000669
S/N 014
HR1064HT532
E1000669-v1
S/N 043
Original Optic had cluster of specks on the center that couldn't be removed with FC 
M12
BS95%1064
E1000871-02
S/N 004
BS90%1064 
E040512-B3
IO820-05
Changed 95/5 to 90/10 BS
M15
HR1064
E1100048  
S/N 2.0-0990
BS50%1064  
E040512-B1
S/N IO826-08
Swapped from HR1064 to 50/50BS, changed handedness, moved picos.
First BS optic we tried to use in 83858 had 1" thin line across, so swapped again. 

* The M1 BS E1000671-02 had no S/N but the box was labeled with Coating Run 515074 & 315079 and datasheet. We scrubbed the pencil mark off the barrel so it's barely visible, but the coated side was above the writing, see photo attached.

Images attached to this report