[1M01-04] Dosimeter Development

[1M04] Development of real-time γ-ray spectrum / dose monitor

*Hikari Nishimura¹, Takaaki Miyoshi¹, Sachie Kusaka¹, Singo Tamaki¹, Fuminobu Sato¹, Isao Murata¹ (1. 1Division of Sustainable Energy and Environmental Engineering, Graduate School of Engineering, Osaka University)

Keywords:the sequential Bayesian estimation, dose measurement, gamma ray spectroscopy

Recently, medical applications of radiation have been widely spread. However, exposure of medical staffs is sometimes not focused on, because treatment of patients is the first priority. It is thus important to decrease the exposure for them as much as possible. In this study, we developed a system which can simultaneously measure energy spectrum and dose of gamma-rays in real time in medical application spots. We conducted experiments using standard gamma-ray sources in order to comfirm accuracy of the result of Bayesian estimation. As a result, we confirmed this system can simultaneously measure energy spectrum and dose of gamma-rays in real time , even in the field where a large number of gamma-ray are mixed.