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- Title
Absolute measurement of activity of 198Au foils using the 4πβ–γ coincidence counting method and corrections by the Monte Carlo simulation.
- Authors
Nishiyama, Jun; Harano, Hideki; Matsumoto, Tetsuro; Sato, Yasushi; Uritani, Akira; Kudo, Katsuhisa
- Abstract
The thermal neutron fluence rate is determined by the gold activation method. The absolute activity of the irradiated gold foil is measured by a 4πβ–γ coincidence counter. Using this method, corrections for the detection of conversion electrons and gamma rays by a 4πβ counter are very important to obtain accurate absolute activity. In this work, Monte Carlo simulations were performed to derive the correction factor K. The absolute measurement of 198Au activity for 20–100 μm thickness Au foils were performed to verify the calculating model of the 4πβ–γ coincidence counting system.
- Subjects
GOLD foil; COINCIDENCE circuits; MONTE Carlo method; THERMAL neutrons; ELECTRONS
- Publication
Radiation Protection Dosimetry, 2012, Vol 148, Issue 2, p237
- ISSN
0144-8420
- Publication type
Article
- DOI
10.1093/rpd/ncr029