a+practical+soil+radon+(222rn)+measurement+method

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1、万方数据型竺!!竺i：!竺：：竺!!!!墅!g!!：!!l：!!!!!!!：!堑Apracticalsoilradon(222Rn)measurementmethodDINGWeicheng1，2，‘WANGYi1LIYuanjing1FANGFan92YANGLiu2lDepar咖ent巧Eng{neermgPhysics，TsingfnlaUniversi饥K叫Ldboratow可Pnrticle＆R翻inlionlmdging，Minis的《Educntion，Be日tnglo0084，Chbm2Ch

2、朋gdHUntve船ny《Technolo斟，Ke)，Lnbordto咿蟛Ap嘲iedN粥learTech∞lo科inGeoseienc舒，Cheng幽610069，Chin口Abstractsoilradonmeasu佗mento仆ighs切bil时andsensitiv毋iswidelyapplied，andinsome印plications，蛐chasinumi啪prospecting，222Rnshouldbedis衄gIlished舶m22‰．To眦etthisrequirem朗t，apmctic

3、almemodbaSedonsoilmdondiffIlsionandacc砌ulationtheo珂tomeasuresoiIradonbyAlpllaParticleSpec仃oscopy似-PS)isdiscussedinthispaper．111e口．PS赋鹊u姗瑚tmethodc锄e行ectivelyovercomethee腩ctsof220Rn卸ditsdau咖ers(216Po，212Bi，212Po)．111esystcmc锄eliIIlillatetheimpactofsoilradonf

4、ielddistufb锄ce锄dnon．uTlifonIl时througtlsoilradonstaticdi朐si∞．RadondaughterS(218Po，214Po)areacc啪ulatedllIldertheactionof锄elec仃os协ticforce，whichnotonIyerlhancestlleme硒ur锄entsensitiVi吼butalsoincreasesrobusmessofthemeasuremem．SimultaneollsmeaSurementofmultiplep

5、ointscaniIlcreasethecompambilityofmeasurementdataandmemea吼H．ementemciency．Exp翻mentaldatashowst11alt11esoilradonme撇mentmenlodwasrob吣t，Soithaswjdeapplicationssuch髂ingeologicalpm印ecting，infissllregro岫dwaterexploration锄dingroundsubsidenceinspection．KeywordsSoi

6、lradon；a—PS；“2Rn；di觚sion柏daccumulationtlleory；Soilradonconcen仃ationme船urcment1IntrOduction222Rnisagaseousmdionuclide舶m111撇iumdecay．Studieson222Rnmi伊ationhaveshownthat222Rnhasave巧s仃ongupwardtraIlsferc印abili够【1叫，andtheinfo册ationabout嗽niumdepositshundredsofme

7、tersunderglDuIldcanbeobtainedbymeas谢ngsurfacesoil222Rnconcentration【4，51．222Rncandifmsef如mdeepunde唱roundnlrou91lge0109icalfaultzones，hencehi曲radonconcen仃ationnearmef．auhzones．Meas谢ngsoilradonisusedf．orgeologicalpmspecting，groulldⅥ，aterexploration，gro吼dsubs

8、idenceinspection，laIldSlidebeltsuⅣeys，geotll锄aleXplor撕on【瞄]蛐deanhq珑lkemonito血g【9J．SoilradonmeasurementtechniquescanbedoneinstantalleouslyorcumulatiVely．CumulatiVesoilradonmeasurementmethodsi11commonuseinclude