title: The measurements of thoron, radon and their decay products thanks to Pinocchio, Tengu and Trolls.
abstract: In the present paper, the long noses of Pinocchio, Tengu and Trolls are used to measure, respectively, radon, thoron, and their decay products both by track-etch detectors and by Geiger-Müller (G-M) counters. Just recently, four new passive samplers (termed quatrefoil) have been developed which greatly simplify the detection of all airborne radionuclides by using either passive or real-time detectors. In particular, surface-deposited radon (thoron) decay products are sampled by films with large area and small surface density (0.1-1 mg cm(-2)). Once exposed, these films are stacked together for their detection by a pancake G-M counter. For the measurements of radon and thoron in soil, 25-cm-long tubes with sampling films along their internal surfaces can be successfully used. Once exposed, these films can be counted by a pancake G-M for the selective measurement of radon and thoron.
authors.affiliation: THL, Via Cassia 1727, Rome, Italy. ltommasino@gmail.com
authors.forename: L
authors.initials: L
authors.lastname: Tommasino
authors.forename: S
authors.initials: S
authors.lastname: Tokonami
authors.forename: P M
authors.initials: PM
authors.lastname: Tommasino
mesh_terms: D000396:Air Pollutants, Radioactive; D016902:Air Pollution, Indoor / Q000032:analysis*; D004781:Environmental Exposure; D004867:Equipment Design; D006798:Housing; D006801:Humans; D007558:Italy; D007564:Japan; D015233:Models, Statistical; D011834:Radiation Monitoring / Q000295:instrumentation* / Q000379:methods; D011874:Radiometry; D011886:Radon / Q000032:analysis*; D017687:Radon Daughters / Q000032:analysis*; D012306:Risk
chemical_list: D000396:Air Pollutants, Radioactive; D017687:Radon Daughters; D011886:Radon