Efficiency estimation for detecting U. cap alpha. particles in solid-state nuclear track detectors
The detection efficiencies of solid-state nuclear track detectors, made with cellulose nitrate materials (LR-115 II) or alkyl diglycol carbonate (CR-39) were investigated. Detection efficiency for a surface ..cap alpha.. source was experimentally obtained by changing the dimensions between the detector and the source, while ..cap alpha..-particle incident efficiency was calculated. The ratio of the detection efficiency to the incident efficiency was then determined. It was confirmed that the ratio for LR-115 II was dependent on energy, but for CR-39 the ratio showed almost no dependency. Considering the relationship between solid absorber thickness and detection efficiency of the surface ..cap alpha.. source, detection efficiencies of U in various metals were estimated. The efficiency for U contained in Al and Fe was proposed as 16% for LR-115 II and 22% for CR-39. Using these efficiencies, amounts of U in some Al and Fe ingots were determined. These agreed with concentrations obtained by neutron-activation analysis with deviations of less than 15%.
- Research Organization:
- Hitachi, Ltd., Japan
- OSTI ID:
- 5232159
- Journal Information:
- Health Phys.; (United States), Vol. 49:3
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
ALPHA DETECTION
DIELECTRIC TRACK DETECTORS
PERFORMANCE
NATURAL URANIUM
ACTIVATION ANALYSIS
ALPHA PARTICLES
CARBONATES
CELLULOSE
EXPERIMENTAL DATA
GEOMETRY
NEUTRON REACTIONS
NITRATES
SURFACE BARRIER DETECTORS
ACTINIDES
BARYON REACTIONS
CARBOHYDRATES
CARBON COMPOUNDS
CHARGED PARTICLE DETECTION
CHARGED PARTICLES
CHEMICAL ANALYSIS
DATA
DETECTION
ELEMENTS
HADRON REACTIONS
INFORMATION
MATHEMATICS
MEASURING INSTRUMENTS
METALS
NITROGEN COMPOUNDS
NUCLEAR REACTIONS
NUCLEON REACTIONS
NUMERICAL DATA
ORGANIC COMPOUNDS
OXYGEN COMPOUNDS
POLYSACCHARIDES
RADIATION DETECTION
RADIATION DETECTORS
SACCHARIDES
SEMICONDUCTOR DETECTORS
URANIUM
440101* - Radiation Instrumentation- General Detectors or Monitors & Radiometric Instruments