Radiant energy – Invisible radiant energy responsive electric signalling
Patent
1989-02-01
1990-11-06
Howell, Janice A.
Radiant energy
Invisible radiant energy responsive electric signalling
250369, 25037001, G01T 136
Patent
active
049688898
ABSTRACT:
An improved system for gamma-ray spectroscopy characterized by an interface module that controls the injection of electronic pulses as well as separation logic that enables storage of pulser events in a region of the spectrum of a multichannel analyzer distinct from the region reserved for storage of gamma-ray events. The module accomplishes this by tagging pulser events (high or low) injected into the amplification circuitry, adding an offset to the events so identified at the time the events are at the output of the analog to digital converter, and storing such events in the upper portion of the spectrum stored in the multichannel analyzer. The module can be adapted for use with existing gamma-ray spectroscopy equipment to provide for automatic analyses of radioisotopes.
REFERENCES:
Johnson et al., "Utilization of Concurrently Gathered Pulser Data for . . . Validation of .gamma.-ray Spectra . . . ", IEEE Trans. of Nuc. Sc. NS-28 (2/81).
Anders, "Experience with GE(Li) Det. . . . and a Practical Approach to Pulse Pileup . . . ", Nuc. Inst. & Meth., 68, p. 205 (1969).
Hartwell et al, "An On-Line Automated .gamma.-Spectrometer for Coolant Monitoring at L.O.F.T.", IEEE Trans. on Nucl. Sc., NS-30 (1983).
Hartwell et al, "On-Line .gamma.-Ray Data Acquis. at the Power Burst Facility", Nucl. Inst. & Meth. in Phys. Res., A242, p. 487 (1986).
Goodwin Scott G.
Hartwell Jack K.
Johnson Larry O.
Killian E. Wayne
Hanig Richard
Howell Janice A.
Kozak Frank J.
Moser William R.
Smith Bradley W.
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