ELOG - H1OMC Spot positions

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Message ID: 163 Entry time: Fri Aug 30 12:24:28 2013

Beam heights on the diodes

DCPD1: 14.459mm -> With 1.5mm shim, the beam will be 0.038mm too low.

DCPD2: 14.221mm -> With 1.25mm shim, the beam will be 0.026mm too low.

QPD1: 14.691mm -> With 1.75mm shim, the beam will be 0.056mm too low.

QPD2: 14.379mm -> With 1.5mm shim, the beam will be 0.118mm too low.

Attachment 1:

DCPD1.png 2.146 MB Uploaded Fri Aug 30 13:42:39 2013 | Hide | Hide all

Attachment 2:

DCPD2.png 2.268 MB Uploaded Fri Aug 30 13:42:59 2013 | Hide | Hide all

Attachment 3:

QPD1.png 1.922 MB Uploaded Fri Aug 30 13:43:14 2013 | Hide | Hide all

Attachment 4:

QPD2.png 1.575 MB Uploaded Fri Aug 30 13:43:25 2013 | Hide | Hide all