Apparatus and method for detecting gamma radiation

Details Apparatus and method for detecting gamma radiation Apparatus and method for detecting gamma radiation

1993-05-25

1994-12-13

Hannaher, Constantine

Radiant energy

Invisible radiant energy responsive electric signalling

Semiconductor system

2502521, G01T 116, G01T 700

Patent

active

053731638

ABSTRACT:
A high efficiency radiation detector for measuring X-ray and gamma radiation from small-volume, low-activity liquid samples with an overall uncertainty better than 0.7% (one sigma SD). The radiation detector includes a hyperpure germanium well detector, a collimator, and a reference source. The well detector monitors gamma radiation emitted by the reference source and a radioactive isotope or isotopes in a sample source. The radiation from the reference source is collimated to avoid attenuation of reference source gamma radiation by the sample. Signals from the well detector are processed and stored, and the stored data is analyzed to determine the radioactive isotope(s) content of the sample. Minor self-attenuation corrections are calculated from chemical composition data.

REFERENCES:
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patent: 4056726 (1977-11-01), Harchol
patent: 4090074 (1978-05-01), Watt et al.
patent: 4237470 (1980-12-01), Raudorf
patent: 4359639 (1982-11-01), Wykes et al.
patent: 4566114 (1986-01-01), Watt et al.

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