title: Development of collimator for in-situ measurement of 90Sr specific activity by β-ray survey meter and Monte Carlo calculation.
abstract: For the in-situ measurement of (90)Sr contamination, the collimators to be combined with the β-ray survey meter were designed with MCNP-4C calculations. The designed collimators were manufactured and its characteristics were measured in accordance with the calculations. The calculated energy deposition in the survey meter agreed within 27% to its counting rate measured in terms of their dependencies on the collimator dimension. This supports the usability of the manufactured collimators and numerical correction of the sensitivity of the survey meter depending on the geometry.
authors.affiliation: Center of Medical Education, Sapporo Medical University, W17, S1, Chuo, Sapporo 060-8556, Japan. tanakaken@sapmed.ac.jp
authors.forename: Kenichi
authors.initials: K
authors.lastname: Tanaka
authors.forename: Jun
authors.initials: J
authors.lastname: Takada
mesh_terms: D001610:Beta Particles; D003198:Computer Simulation; D017076:Computer-Aided Design; D015233:Models, Statistical; D009010:Monte Carlo Method; D011874:Radiometry / Q000295:instrumentation* / Q000379:methods*; D013326:Strontium Radioisotopes / Q000032:analysis*
chemical_list: D013326:Strontium Radioisotopes