title: [A set of devices for monitoring radon and thoron in various media].
abstract: A new class of devices has been designed for rapid and integral measurements of environmental radon and thoron at the levels much lower than the approved normal ones. The operation principle of the devices' transducers is based on deposition of ionized decay byproducts of radon and thoron onto the surface of a semiconductor detector in the measuring chamber, followed by recording of their alpha-radiation. The devised radiometers have some advantages, namely: a high sensitivity (10 Bk/m3), simultaneously record the air levels of radon and thoron in the spectrometric operation of measurements, require no changeable aerosol filters and potent air blowers. The available serial foreign analogues of radiometers have worse parameters and functional capacities than the designed PPA-01M- and PPA-03 type ones.
authors.forename: A A
authors.initials: AA
authors.lastname: Kotliarov
authors.forename: S V
authors.initials: SV
authors.lastname: Krivasheev
authors.forename: A I
authors.initials: AI
authors.lastname: Murashov
mesh_terms: D000388:Air / Q000032:analysis; D000396:Air Pollutants, Radioactive / Q000032:analysis*; D002274:Carcinogens, Environmental / Q000032:analysis*; D004784:Environmental Monitoring / Q000295:instrumentation*; D005069:Evaluation Studies as Topic; D011874:Radiometry; D011886:Radon / Q000032:analysis*; D017687:Radon Daughters / Q000032:analysis; D012666:Semiconductors; D012680:Sensitivity and Specificity; D014159:Transducers
chemical_list: D000396:Air Pollutants, Radioactive; D002274:Carcinogens, Environmental; D017687:Radon Daughters; D011886:Radon
vernacular_title: Kompleks apparatury dlia monitoringa radona i torona v razlichnykh sredakh.