Scintillation detectorszisetyenziselwa ukuzimisela inxalenye ephezulu yamandla kwi-X-ray spectrum.Kwii-scintillation detectors izinto ze-detector zivuyiswa kwi-luminescence (ukukhutshwa kweefotoni ezikhanyayo ezibonakalayo okanye ezikufutshane-ezibonakalayo) ngeefotoni ezixutywe okanye iinqununu.Inani leefotoni eziveliswayo lilingana namandla ephoton efunnyiweyo yokuqala.Iipulse ezikhanyayo ziqokelelwa yifoto-cathode.Ii-electron, ezikhutshwa kwiifotocathode, zikhawuleza nge-voltage ephezulu esetyenzisiweyo kwaye ikhuliswe kwi-dynodes ye-photomultiplier eqhotyoshelweyo.Kwisiphumo sesixhobo sombane kuveliswa ukubetha kombane ngokulinganayo kumandla afunxiweyo.Umlinganiselo wamandla ofunekayo ukuvelisa i-electron enye kwifotocathode imalunga ne-300 eV.KubaIzixhobo zeX-ray, kwiimeko ezininzi i-NaI okanye i-CsI crystals isebenze ngeithalliumzisetyenziswa.Ezi kristale zibonelela ngokucacileyo, ukusebenza kakuhle kweefoton kwaye kunokuveliswa ngobukhulu obukhulu.
I-scintillation detectors inokubona uluhlu lwemitha ye-ionizing, kuquka i-alpha particles, i-beta particles, i-gamma ray kunye ne-X-reyi.I-scintillator yenzelwe ukuguqula amandla emitha yesiganeko ibe kukukhanya okubonakalayo okanye kwe-ultraviolet, enokuthi ibonwe kwaye ilinganiswesipm ifotodetector.Izixhobo ezahlukeneyo ze-scintillator zisetyenziselwa iintlobo ezahlukeneyo zemitha.Umzekelo, i-organic scintillator iqhele ukusetyenziselwa ukubona amasuntswana e-alpha kunye ne-beta, ngelixa i-inorganic scintillator isetyenziswa ngokuqhelekileyo ukufumanisa imitha ye-gamma kunye ne-X-ray.
Ukukhethwa kwe-scintillator kuxhomekeke kwizinto ezifana noluhlu lwamandla okukhanya kwe-radiation ukuze kufunyanwe kunye neemfuno ezithile zesicelo.
Ixesha lokuposa: Oct-26-2023