Method of detecting high energy radiation via a bismuth oxide co

Details Method of detecting high energy radiation via a bismuth oxide co Method of detecting high energy radiation via a bismuth oxide co

1977-09-28

1980-10-07

Smith, Alfred E.

Radiant energy

Invisible radiant energy responsive electric signalling

Semiconductor system

G01T 122

Patent

active

042270847

ABSTRACT:
X-rays or .gamma.-rays are detected by irradiating a beam of high energy radiation onto a crystalline bismuth oxide compound having the formula Bi.sub.10-14 X.sub.1 O.sub.n wherein X is at least one element selected from the group consisting of Al, Ga, Ge, Si and Ti and n is a numeral substantially equal to the stoichiometric amount of oxygen within the compound. The above bismuth oxide crystalline compound may be placed in a radiation dosimeter or be applied as a radiation-sensitive coating on a cylinder or plate of an apparatus for producing electrostatic copies (i.e., an in a xerographic process or the like).

REFERENCES:
patent: 3864725 (1975-02-01), Merrin
patent: 4065671 (1977-12-01), Mayeux et al.
"Journal of Research of the National Bureau of Standards-A. Physics & Chemistry", vol. 68A, No. 2, Mar-Apr., 1964, pp. 197-206.
"Journal of Crystal Growth" vol. 1, 1967, pp. 37-40.
Nestor et al., "Bismuth Germanate: A High-Z Gamma Ray and Charged Partide Detector" IEEE Transactions on Nuclear Science, vol. NS-22, Feb. 1975, pp. 68-71.
Cho et al., "Bismuth Germanate as a Potential Scintillation Detector in Positron Cameras," Journal of Nuclear Medicine/Instrumentation and Physics, vol. 18, No. 8, pp. 840-844.

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