Refine your search:     
Report No.
 - 

Efficiency calibration of Ge detector for $$^{131}$$I and $$^{134}$$Cs in soil samples and a simplified calculation of cascade summing corrections for volume source

Asai, Masato ; Kaneya, Yusuke*; Sato, Tetsuya  ; Tsukada, Kazuaki ; Oe, Kazuhiro; Sato, Nozomi; Toyoshima, Atsushi

To measure radioactivities in soil contaminated by the accident of the Fukushima Daiichi Nuclear Power Plant, efficiency calibration of Ge detectors for $$^{131}$$I, $$^{134}$$Cs, and $$^{137}$$Cs in volume sources was investigated. $$gamma$$-ray detection efficiencies for these nuclei were determined precisely using standard soil samples containing $$^{134}$$Cs, $$^{137}$$Cs, $$^{175}$$Hf, and $$^{88}$$Zr. These standard sources were prepared by admixing radioactive solutions with soil, and point sources were made from the same solutions to determine their radioactivity concentrations. Cascade summing corrections for $$gamma$$ rays of $$^{134}$$Cs in soil samples were evaluated experimentally. To easily calculate the cascade summing corrections for volume sources, we examined a simplified method using averaged efficiencies, and evaluated its validity through a comparison of the calculated correction factors with the experimental ones.

Accesses

:

- Accesses

InCites™

:

Altmetrics

:

[CLARIVATE ANALYTICS], [WEB OF SCIENCE], [HIGHLY CITED PAPER & CUP LOGO] and [HOT PAPER & FIRE LOGO] are trademarks of Clarivate Analytics, and/or its affiliated company or companies, and used herein by permission and/or license.