Radiant energy – Invisible radiant energy responsive electric signalling – With or including a luminophor
Patent
1994-10-14
1996-02-06
Fields, Carolyn E.
Radiant energy
Invisible radiant energy responsive electric signalling
With or including a luminophor
250262, G01T 117, G01V 504
Patent
active
054897793
ABSTRACT:
The present invention is a system for analyzing the energy levels of radiation detected by a radiation detector having a multichannel pulse height analyzer. The radiation detector generates signals representative of the energy level of the detected radiation, and the analyzer increments a particular channel dependent on the signal from the detector. The channel incremented by the analyzer is in response to an empirical relationship of the particular channel with respect to energy level. The empirical relationship is determined so that energy spectral peaks occurring over substantially the entire energy detection range of the detector have peak widths spanning substantially equal numbers of analyzer channels. In one embodiment of the invention, the detector is a scintillation counter responsive to gamma ray radiation. In one embodiment of the invention, the empirical relationship is approximated by an ordered expression comprising a third order polynomial function.
REFERENCES:
patent: 4471435 (1984-09-01), Meisner
patent: 5055675 (1991-10-01), Bridges
patent: 5067090 (1991-11-01), Seeman
patent: 5289386 (1994-02-01), Anderson
Pemper Richard R.
Prati Enrique J.
Fagin Richard A.
Fields Carolyn E.
Glick Edward J.
Western Atlas International Inc.
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