Published October 1991
| Version v1
Journal article
A Monte Carlo based method of including gamma self-absorption for the analysis of environmental samples
- 1. Inst. de Fisica Corpuscular, Univ. de Valencia, Consejo Superior de Investigaciones Cientificas, Burjassot, Valencia (Spain)
- 2. Dept. de Fisica, Univ. de Extremadura, Caceres (Spain)
Description
We propose a new method to calculate the full-energy-peak efficiency of Ge(Hp) detectors, including gamma self-absorption, using a Monte Carlo technique. We have studied several samples geometries, which are the most commonly used in environmental radioactivity. Petri vial and Marinelli beakers, supposing different densities for the material in the sample, between 0.4 and 1.6 g/cm3. For each geometry we have found an important change of self-absorption on density and we have calculated the dependence of full-energy-peak efficiency on sample density for a set of energies between 100 and 2000 keV. (orig.)
Additional details
Publishing Information
- Journal Title
- Nuclear Instruments and Methods in Physics Research. Section B
- Journal Volume
- 61
- Journal Issue
- 4
- Series
- Nucl. Instrum. Methods Phys. Res., Sect. B.
- Journal Page Range
- 535-540
- ISSN
- 0168-583X
- CODEN
- NIMBE
INIS
- Country of Publication
- Netherlands
- Country of Input or Organization
- Netherlands
- INIS RN
- 23032120
- Subject category
- S46: INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY;
- Descriptors DEI
- EFFICIENCY; GAMMA RADIATION; GE SEMICONDUCTOR DETECTORS; HIGH-PURITY GE DETECTORS; INELASTIC SCATTERING; KEV RANGE 100-1000; MEV RANGE 01-10; MONTE CARLO METHOD; SAMPLING; SELF-ABSORPTION
- Descriptors DEC
- ABSORPTION; CALCULATION METHODS; ELECTROMAGNETIC RADIATION; ENERGY RANGE; IONIZING RADIATIONS; KEV RANGE; MEASURING INSTRUMENTS; MEV RANGE; RADIATION DETECTORS; RADIATIONS; SCATTERING; SEMICONDUCTOR DETECTORS; SORPTION