Abstract
The study on using two detectors in order to measure accurately the activity of an unknown radioactive point source in a large bulky sample, named "a box", was expanded to the general case, including the geometrical and absorption effects together. Two NaI(Tl) detectors were positioned at the opposite sides of the sample, and mathematical correlations of the count rates were used to develop an algorithm, which gave quantities independent on the source location. The mathematical algorithm was validated by experimental results. This method reduces to a great extent the uncertainty of the activity determination.
Original language | English |
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Pages (from-to) | 632-647 |
Number of pages | 16 |
Journal | Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment |
Volume | 527 |
Issue number | 3 |
DOIs | |
State | Published - 21 Jul 2004 |
Keywords
- Absorption
- Dependence
- General case
- Geometry
- Location
- Point source
ASJC Scopus subject areas
- Nuclear and High Energy Physics
- Instrumentation