Abstract
A simultaneous determination of gamma and neutron fluences in a mixed neutron + gamma field can be achieved by gamma-ray spectrometry, optimizing the moderator-converter-detector assembly and measuring both the direct gamma-lines and the neutron induced prompt gammas. For the prompt gamma-lines a combination of high efficiency and low background is the goal, and it can be best achieved if the gamma-energy is in the range above about 1 MeV up to 2.5 MeV. The optimal moderator-converter thickness can be determined experimentally. Most converter elements produce gamma-rays in the low energy range. If chlorine is used as a converter, the 1164.7 keV peak and the 1950-1960 keV peaks seems to be a good choice. A very practical material containing chlorine is PVC. It is an efficient moderator, it is solid, common, and can be handled easily.
Original language | English |
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Pages (from-to) | 237-241 |
Number of pages | 5 |
Journal | Journal of Radioanalytical and Nuclear Chemistry |
Volume | 268 |
Issue number | 2 |
DOIs | |
State | Published - 1 May 2006 |
ASJC Scopus subject areas
- Analytical Chemistry
- Nuclear Energy and Engineering
- Radiology Nuclear Medicine and imaging
- Pollution
- Spectroscopy
- Public Health, Environmental and Occupational Health
- Health, Toxicology and Mutagenesis