The development and the tests of the electrostatic probe for dust particle collection in thermonuclear reactors

摘要

Formationofdustparticlesinthermonuclearreactorscangreatlyaffecttheplasmaparametersandleadtoaccumulationoftritium.Theratesofformationanddepositionofdustneedtobemeasured,andtheparametersofformationofdustparticlesandclustersneedtobestudied.Amodelofadeviceforcollectionoffineconductiveparticlescapableofremovingthemfromthereactorchamberforfutureresearchisproposedinthispaper.Thedustcollector'soperationisbasedonaprincipleofappliedelectrostaticfield.Themodelwastestedindifferentoperatingconditions:invacuum,attheatmosphericpressureintheatmosphereofairanddrynitrogen.Theexperimentswereconductedwithastationarysystemandwiththedustcollectorinmotionrelativetothedustysurface.Itisshownthat,duringtheprobemovingrelativetothesurface,itcanremoveupto95%offinetungstenparticleswithsizesrangingfrom1to10μm...