title: Some problems on the measurement of 222Rn concentrations by passive cup method.
abstract: A passive cup monitor has been constructed by using a 50 mm radius stainless steel hemisphere. The conductive housing has reduced the scatter in track densities. In dwellings with high 220Rn concentrations, it is particularly necessary to measure 222Rn concentration with a monitor having a radon exchange rate less than 0.1 h-1.
authors.affiliation: Department of Nuclear Engineering, School of Engineering, Nagoya University, Japan.
authors.forename: T
authors.initials: T
authors.lastname: Iida
authors.forename: Q
authors.initials: Q
authors.lastname: Guo
authors.forename: Y
authors.initials: Y
authors.lastname: Ikebe
mesh_terms: D011834:Radiation Monitoring / Q000295:instrumentation*; D011886:Radon / Q000032:analysis*
chemical_list: D011886:Radon