[2J01-08] Dose Assessment

[2J05] Study on optimization method for contamination inspection of vehicles in nuclear emergency

(2) Confirmation of the usefulness of the new set-up for portable radiation portal monitors for vehicles

*Kouhei Kawasaki¹, Hirokazu Hiraoka², Iwao Ezaki¹, Masanori Kimura², Orihiko Togawa², Shota Saito² (1. CTC, 2. JAEA)

Keywords:Nuclear Emergency, Urgent Protective action planning Zone, Contamination Inspection, Portable Radiation Portal Monitor, Screening measurement with designated area of vehicle

Vehicles carrying evacuees during a nuclear emergency are subject to contamination inspections, and the operation of screening by measuring tires and wiper are required. The introduction of portable radiation portal monitors for vehicles is expected to be quick tire inspections, however, it is difficult to inspect the tire and the wiper at the same time, so further speeding up the inspection process is an issue. In this study, we attempted to discriminate each type of contamination by using a different the new set-up of detectors for the purpose of simultaneous inspection of tires and/or wiper. We will report the usefulness of the the new set-up and the results of simulation calculations of detector response under realistic contamination assumptions.