[20p-PB4-1~94] 2 Ionizing Radiation (Poster)

[20p-PB4-93] Visualization of various low-level gamma-ray radiation sources in the ambient environment using a high-sensitivity omnidirectional Compton camera

〇Hiroshi Muraishi¹, Ryoji Enomoto², Hideaki Katagiri³, Mika Kagaya⁴, Takara Watanabe⁵, Naofumi Narita³, Daisuke Kano⁵ (1.Kitasato Univ., 2.ICRR, Univ. of Tokyo, 3.Ibaraki Univ., 4.NIT, Sendai College, 5.NCCHE)

Keywords:Compton camera, Gamma-ray imaging, Radiation protection

We present the experimental protocols of visualizing various low-level gamma-ray radiation sources that exist in the surrounding environment. Experiments were conducted by using a low-cost and high-sensitivity omnidirectional gamma-ray imaging Compton camera which we developed. We demonstrated clear advantage to visualize gamma-ray sources by using our procedure with this camera. Our protocols can be more useful to find low-level radioactive contamination instead of the stationary dose rate monitors and/or portable survey meters used conventionally.