We often measure both the dose and dose rate of scattered radiation when evaluating occupational exposure. However, no studies have emphasized the need to consider the energy of the scattered radiation. The conventional apparatus for taking energy measurements, X-ray spectrometers, are not easy to handle. Recently, the X2 survey meter that can measure both the dose and mean energy of scattered radiation was offered by Unfors RaySafe. However, no detailed the fundamental performance on mean energy of the X2 survey meter. Therefore, this study evaluated the fundamental performance of X2 survey meter in comparison to CdTe spectrometer. As a result, the X2 survey meter had a similar response to the CdTe spectrometer. Furthermore, the X2 survey meter has advantages that the sensor is small, the measured value is obtained immediately. We concluded that the X2 survey meter facilitates accurate monitoring of the scattered radiation.

 Supply Platform of Short-lived Radioisotopes for Fundamental Research has been started since 2016. Purpose of this program is to provide non-commercial RIs from accelerator facilities to researchers of various scientific fields after approving the research projects. The suppliers are domestic 4 large accelerator facilities, which have permission to use radiation generating apparatus under “Act on Prevention of Radiation Hazards due to Radioisotopes, etc.”. However, it is an open question whether these facilities can provide RIs without legal notification of dealing businesses. In this paper, we report the record of how to make to be realized this platform under legal permission of use.