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Report No.

Investigation of electronic personal dosemeters response in the $$gamma$$-ray field with low dose rate

Kojima, Naomi; Nakagawa, Takahiro ; Yamazaki, Takumi ; Takimoto, Misaki  ; Takada, Chie 

In late years, Electronic Personal Dosemeter (EPD) has been widely used because of its useful specifications: indicating measurement values on site, lower detect limits than glass badge. However, an investigation of its response characteristic is difficult to perform using actual low dose rate $$gamma$$-ray. The investigation needs sheildings of a entire irradiation room for reducing natural radiation. In this study, at the compact irradiation system with low dose rate which National Institute of Advanced Industrial Science and technology developed, $$gamma$$-ray of $$^{137}$$Cs below 0.1$$mu$$Sv/h were irradiated to two models of EPD with recording function. Integrated dose and standard deviation for EPD were analyzed to investigate response characteristics for low dose rate radiation.



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