Apparatus and method for detecting gamma radiation
A high efficiency radiation detector is disclosed 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. 4 figures.
- DOE Contract Number:
- AC09-89SR18035
- Assignee:
- Dept. of Energy, Washington, DC (United States)
- Patent Number(s):
- US 5373163; A
- Application Number:
- PPN: US 8-066235
- OSTI ID:
- 6879922
- Resource Relation:
- Patent File Date: 25 May 1993
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
GAMMA DETECTION
RADIATION DETECTORS
DESIGN
RADIOASSAY
X-RAY DETECTION
CHEMICAL COMPOSITION
GE SEMICONDUCTOR DETECTORS
DETECTION
MEASURING INSTRUMENTS
RADIATION DETECTION
SEMICONDUCTOR DETECTORS
400101* - Activation
Nuclear Reaction
Radiometric & Radiochemical Procedures
440101 - Radiation Instrumentation- General Detectors or Monitors & Radiometric Instruments