Methods and apparatus for calibration of BGO scintillator gamma

Details Methods and apparatus for calibration of BGO scintillator gamma Methods and apparatus for calibration of BGO scintillator gamma

1991-09-27

1992-12-15

Hannaher, Constantine

Radiant energy

Calibration or standardization methods

250256, 250262, 25039007, G01C 2500, G01V 500

Patent

active

051719860

ABSTRACT:
The energy-to-channel response of a bismuth germanate scintillator (BGO) gamma ray spectra measurement system is calibrated by use of the 10.2 MeV gamma ray peak originating from epithermal neutron capture within the BGO crystal as a calibration reference line. The 10.2 MeV peak is located by successively fitting the detected spectrum to the combination of a gaussian-shaped gamma ray peak and an exponentially-shaped background, beginning at the upper end of the spectrum and successively sliding the fitting window downwards until the peak is reached. Once the 10.2 MeV peak has been located, the spectral gain is adjusted to shift the peak to an assigned calibration channel location adjacent the upper end of the overall spectral window.

REFERENCES:
patent: 3213279 (1965-10-01), Caldwell
patent: 3829686 (1974-08-01), Schultz et al.
patent: 4031367 (1977-06-01), Murphy
patent: 4433240 (1984-02-01), Seeman
patent: 4536841 (1985-08-01), Waechter et al.
patent: 4580048 (1986-04-01), Dion
patent: 4596927 (1986-06-01), Hopkinson et al.
patent: 4760252 (1988-07-01), Albats et al.
patent: 5023449 (1991-06-01), Holenka et al.
Response of Bismuth Germanate to Low Energy Neutrons, E. A. Mosson and M. R. Wormald, Nuclear Applications Centre, Harwell Laboratory, OXON OX11, ORA, UK, May 1990.

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