Pcal Gold Standard and Working Standard Configuration Change Proposal

Document #:

LIGO-T1800359-v2

Document type:

T - Technical notes

Abstract:

This document describes the rationale behind the proposed configuration change for the Pcal Gold Standard and Working Standards. Part one reviews the current Working Standard/Gold standard setup, as well as the calculations that go into power sensor calibrations. Part two evidences the need for a reconfiguration of the Pcal Standards. Part three details measurements that have been taken to determine the source of the error for which the configuration change becomes necessary. Part four describes the factors taken into account in changing the standard. Part five presents the final configuration.

Files in Document:

• pcal-gold-standard.pdf (8.2 MB)

Topics:

• Calibration
• Final Design
• Auxiliary Optics

Authors:

• Yannick Lecoeuche
• Marek Szczepanczyk
• Richard Savage
• Sudarshan Karki
• Travis Sadecki

Related Documents:

• LIGO-T1500036-v1: Index of Photon Calibrator Gold Standard and Checking Standard NIST calibrations