SpecificationsMeasurementrangeofsurfacealpha-particlesfluxdensity1/(cm min)0.1 105Maximumbasicrelativeerrorofsurfacealpha-particlesfluxdensitymeasurementat239Pucalibrationwith0.95confidenceprobability%15+10/А,whereAisanumericalvalueofmeasuredsurfacealphafluxdensityDetector-countersincoronadischargemodeMicathickness m10-11Alpha-particlesdetectionefficiency%24-32Windowareacm 21Operatingtemperaturerange C-25...+55Maximalgammaradiationexposuredoseratethatdoesnotintroduceauxiliaryerroratsurfacealpha-particlesfluxdensitymR/h10,0Maximumauxiliaryerrorofmeasurementcausedbyambienttemperaturechangefromminus25 Cto55 Cmeasurement%5pereach10 Cdeviationfrom20 CDimensionsofthedetectingunitwithoutthetelescopicbarholdermm 105 56Weightofthedetectingunit*kg0.65*-withoutthetelescopicbarholderof0.036kgweight