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Microdosimetry of epithermal neutron field at the Kyoto University reactor
Y Onizuka1, S Endo, M Ishikawa
1School of Health Sciences, Kyushu University, Maidashi, Higashi-ku, Fukuoka 812-8582, Japan. onizuka@shs.kyushu-u.ac.jp
Radiation Protection Dosimetry
|August 27, 2002
Abstract:
Microdosimetric spectra were measured in order to gain the microdosimetric parameters of some epithermal neutron fields. Changes in dose mean lineal energy YD as a function of depth of heavy water showed a trend of softening with heavy water of the beam. The neutron absorbed dose was obtained by using the frequency mean lineal energy. Results show good agreement with measurements with the activation method using gold foil. This study demonstrated how microdosimetric parameters change in radiation quality as a function of heavy water depth.