Characterization Of The Absolute Photon Sensitivity Of Gold Cathode Photoelectric Detectors

C. M. Dozier; R. K. Freitag; D. L. Fehl

doi:10.1117/12.936569

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12 August 1986 Characterization Of The Absolute Photon Sensitivity Of Gold Cathode Photoelectric Detectors

C. M. Dozier, R. K. Freitag, D. L. Fehl

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Proceedings Volume 0689, X-Ray Calibration: Techniques, Sources, and Detectors; (1986) https://doi.org/10.1117/12.936569
Event: 30th Annual Technical Symposium, 1986, San Diego, United States

Abstract

The responses of gold cathode photoelectric detectors to photons in the 3 to 7.5 keV energy band have been measured using synchrotron radiation. The photoelectron detectors under study have cathodes with a conical configurations. Their sensitivities with respect to position on the cathode are nearly uniform (within 30 percent) over approximately 65 percent of the cone surface. The responses fall rapidly near the outer edges. Sensitivities with respect to the photon angle of incidence are proportional to (sin θ)-1. In the photon energy band covered, the measured response of the detectors are approximately 20 percent lower than the responses measured with conventional x-ray sources. These differences are due to differences in the geometries of the two calibrations.

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C. M. Dozier, R. K. Freitag, and D. L. Fehl "Characterization Of The Absolute Photon Sensitivity Of Gold Cathode Photoelectric Detectors", Proc. SPIE 0689, X-Ray Calibration: Techniques, Sources, and Detectors, (12 August 1986); https://doi.org/10.1117/12.936569

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