Investigation of self-powered gamma flux detectors with Lead(II) oxide serving as both emitter and insulator

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H. Shi
Shuwei Yue
Guy Jonkmans
Bhaskar Sur
John W. Hilborn

Abstract

The use of Lead(II) oxide as the electron-emitting component and the insulating component of self-powered flux detectors is a concept that had not been previously explored. Detectors constructed from various combinations of electrodes (stainless steel, Al, Pb, and W) and insulating materials (Al2O3 and PbO) were irradiated in a 427 Gy/h gamma field. Although high gamma sensitivities were achieved, PbO did not prove to be a strong emitter of gamma-induced electrons. Nevertheless, PbO did serve as a better insulator than one that is currently in use, namely alumina.

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