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
- Country of Publication:
- United States
- Language:
- English
Similar Records
sup 235 U accountability measurements on small-samples (U)
sup 235 U accountability measurements on small samples
Related Subjects
400101* -- Activation
Nuclear Reaction
Radiometric & Radiochemical Procedures
440101 -- Radiation Instrumentation-- General Detectors or Monitors & Radiometric Instruments
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
CHEMICAL COMPOSITION
DESIGN
DETECTION
GAMMA DETECTION
GE SEMICONDUCTOR DETECTORS
MEASURING INSTRUMENTS
RADIATION DETECTION
RADIATION DETECTORS
RADIOASSAY
SEMICONDUCTOR DETECTORS
X-RAY DETECTION