title: Autoradiographical methods for the assessment of radionuclides in hot particles on filter samples.
abstract: Three different autoradiographical methods were tested for detection, localisation and quantification of radionuclides in hot particles deposited on air filters. With all methods, hot particles could successfully be localised on air filters. Two methods, a X-ray film technique and a digital autoradiography technique using a microchannel array detector, have been examined with particles of known activity and with particles on air filter samples of the Chernobyl area to be able to quantify the 90Sr activity in the hot particles consistently. The results obtained in this study suggest that the digital autoradiography system is a very useful tool having a high efficiency with a low measurement uncertainty and allowing short exposure times for extensive measurement tasks.
authors.affiliation: Ukrainian Institute of Agricultural Radiology, Mashinobudivnykiv str 7, Chabany, Kyivo-Svjatoshinskiy distr, Kyiv reg, 08162, Ukraine.
authors.forename: V I
authors.initials: VI
authors.lastname: Yoschenko
authors.forename: V A
authors.initials: VA
authors.lastname: Kashparov
authors.forename: V P
authors.initials: VP
authors.lastname: Protsak
authors.forename: J
authors.initials: J
authors.lastname: Tschiersch
mesh_terms: D000398:Air Pollution, Radioactive / Q000032:analysis*; D001345:Autoradiography / Q000379:methods*; D001610:Beta Particles; D002138:Calibration; D004784:Environmental Monitoring / Q000379:methods*; D005374:Filtration / Q000295:instrumentation; D011210:Power Plants; D015203:Reproducibility of Results; D013051:Spectrometry, Gamma; D013326:Strontium Radioisotopes / Q000032:analysis / Q000737:chemistry; D014962:X-Ray Film
chemical_list: D013326:Strontium Radioisotopes