Apparatus and method for detecting gamma radiation

Patent · Sat Jan 01 00:00:00 EST 1994

OSTI ID:869648

Sigg, Raymond A ^[1]

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1. Martinez, GA

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.

• Research Organization: Savannah River Site (SRS), Aiken, SC (United States)
• DOE Contract Number: AC09-89SR18035
• Assignee: United States of America as represented by United States (Wasington, DC)
• Patent Number(s): US 5373163
• OSTI ID: 869648
• Country of Publication: United States
• Language: English

Related Subjects

apparatus
method
detecting
gamma
radiation
efficiency
detector
measuring
x-ray
small-volume
low-activity
liquid
samples
overall
uncertainty
sigma
sd
hyperpure
germanium
collimator
reference
source
monitors
emitted
radioactive
isotope
isotopes
sample
collimated
avoid
attenuation
signals
processed
stored
data
analyzed
determine
content
minor
self-attenuation
corrections
calculated
chemical
composition
liquid sample
radioactive isotope
liquid samples
chemical composition
radiation detector
gamma radiation
radiation emitted
reference source
stored data
detecting gamma
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