Testing of the D-Shuttle personal dosemeter

A new dosimetry system was developed in Japan (Chiyoda Technol Corporation). It has been used for purposes of continuous long-term personal dose monitoring of residents in the area affected by the Fukushima Daiichi nuclear plant accident. The system includes a Si-diode based dosemeter, namely D-Shuttle, a small pocket reader, a laboratory table reader and PC with a complementary software application. After insertion of the dosemeter into the pocket reader, the reader's display shows the dose accumulated during the last day and the total dose. In this way, the dose can be checked by the resident anytime. A more detailed dose reconstruction in time can be done in laboratory. We tested this system, and probed its possible usability for first responders that would operate in emergency radiological events. Most of the results were in correspondence with producer's specifications and reference values, but there were several discrepancies observed.