title: Dose rate calculations for a reconnaissance vehicle.
abstract: A Chemical Nuclear Reconnaissance System (CNRS) has been developed by the British Ministry of Defence to make chemical and radiation measurements on contaminated terrain using appropriate sensors and recording equipment installed in a land rover. A research programme is under way to develop and validate a predictive capability to calculate the build-up of contamination on the vehicle, radiation detector performance and dose rates to the occupants of the vehicle. This paper describes the geometric model of the vehicle and the methodology used for calculations of detector response. Calculated dose rates obtained using the MCBEND Monte Carlo radiation transport computer code in adjoint mode are presented. These address the transient response of the detectors as the vehicle passes through a contaminated area. Calculated dose rates were found to agree with the measured data to be within the experimental uncertainties, thus giving confidence in the shielding model of the vehicle and its application to other scenarios.
authors.affiliation: Serco Assurance, Birchwood Park, Risley, Warrington, WA3 6AT, UK.
authors.forename: L
authors.initials: L
authors.lastname: Grindrod
authors.forename: J
authors.initials: J
authors.lastname: Mackey
authors.forename: M
authors.initials: M
authors.lastname: Salmon
authors.forename: C
authors.initials: C
authors.lastname: Smith
authors.forename: S
authors.initials: S
authors.lastname: Wall
mesh_terms: D001336:Automobiles; D003198:Computer Simulation; D004866:Equipment Contamination / Q000517:prevention & control*; D019544:Equipment Failure Analysis / Q000379:methods; D015233:Models, Statistical; D009010:Monte Carlo Method; D016273:Occupational Exposure / Q000032:analysis*; D011829:Radiation Dosage; D011834:Radiation Monitoring / Q000295:instrumentation* / Q000379:methods*; D011835:Radiation Protection / Q000295:instrumentation* / Q000379:methods; D011868:Radioisotopes / Q000032:analysis*; D012637:Security Measures
chemical_list: D011868:Radioisotopes