An In-Vacuum BR/TDF Measurement Apparatus

L E Gilliam; R A Osiecki

doi:10.1117/12.939480

3 June 1987 An In-Vacuum BR/TDF Measurement Apparatus

L E Gilliam, R A Osiecki

Proceedings Volume 0675, Stray Radiation V; (1987) https://doi.org/10.1117/12.939480
Event: 30th Annual Technical Symposium, 1986, San Diego, United States

Abstract

An in-vacuum BR/TDF measurement apparatus has just been assembled as part of a larger space environmental effects facility. The sample stage and detector assemblies are mounted within and the requisite optics train and light sources external to a 48-in. diameter vacuum chamber. The chopped and field stopped f/60 incident beam enters the chamber through a window of appropriate material. Argon ion, helium neon, and CO2 lasers, as well as a xenon arc lamp, are used as light sources. Beam size on the sample is about 1-cm diameter with the detectors mounted on a 60-cm arm. The detectors can be rotated from within about 2° of the incident beam to directly facing the incident beam and can measure reflectance of a normally incident beam to about 83° and transmittance from 150° to 180°.

Citation Download Citation

L E Gilliam and R A Osiecki "An In-Vacuum BR/TDF Measurement Apparatus", Proc. SPIE 0675, Stray Radiation V, (3 June 1987); https://doi.org/10.1117/12.939480

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