40m QIL Cryo_Lab CTN SUS_Lab TCS_Lab OMC_Lab CRIME_Lab FEA ENG_Labs OptContFac Mariner WBEEShop
  OMC elog  Not logged in ELOG logo
Entry  Fri Dec 13 14:59:18 2019, Stephen, General, General, OMC Beam Dump Production Cure Bake IMG_6080.JPGIMG_6079.JPG
    Reply  Wed Dec 18 21:54:53 2019, Koji, General, General, OMC Beam Dump Production Cure Bake P_20191218_160650_vHDR_On.jpegP_20191218_160705_vHDR_On.jpegP_20191218_160733_003.jpeg
       Reply  Mon Sep 28 16:03:13 2020, rana, General, General, OMC Beam Dump Production Cure Bake 
          Reply  Mon Sep 28 16:13:08 2020, Koji, General, General, OMC Beam Dump Production Cure Bake 
Message ID: 394     Entry time: Mon Sep 28 16:13:08 2020     In reply to: 393
Author: Koji 
Type: General 
Category: General 
Subject: OMC Beam Dump Production Cure Bake 

According to the past backscatter test of the OMC (and the black glass beamdump: not V type but triangular type on a hexagonal-mount), the upper limit of the back reflection was 0.13ppm. https://nodus.ligo.caltech.edu:8081/OMC_Lab/209

I don't have a BRDF measurement. We can send a few black glass pieces to Josh.

ELOG V3.1.3-