Ama-scintillation detectorszisetshenziselwa ukunquma ingxenye enamandla kakhulu ye-X-ray spectrum.Kuma-scintillation detectors into ethinta umtshina ithokozelwa yi-luminescence (ukukhishwa kwamafotoni akhanyayo abonakalayo noma acishe abonakale) ngamaphothoni noma izinhlayiyana ezimunnyiwe.Inani lama-photon akhiqizwayo lilingana namandla e-photon eyinhloko emunjiwe.Ama-pulses alula aqoqwa nge-photo-cathode.Ama-electron, akhishwa ku-i-photocathode, asheshiswa yi-voltage ephezulu esetshenzisiwe futhi akhuliswe kuma-dynodes we-photomultiplier enamathiselwe.Ekuphumeni komtshina kukhiqizwa i-pulse kagesi elingana namandla amuncwa.Amandla ajwayelekile adingekayo ukukhiqiza i-electron eyodwa ku-photocathode cishe ama-eV angama-300.NgobaAma-X-ray detectors, ezimweni eziningi amakristalu e-NaI noma e-CsI avulwe ngei-thalliumzisetshenziswa.Lawa makristalu ahlinzeka ngokusobala okuhle, ukusebenza kahle kwe-photon okuphezulu futhi angakhiqizwa ngamasayizi amakhulu.
Ama-scintillation detectors angathola uhla lwemisebe ye-ionizing, okuhlanganisa izinhlayiya ze-alpha, izinhlayiya ze-beta, imisebe ye-gamma kanye nama-X ray.I-scintillator yakhelwe ukuguqula amandla emisebe yesigameko ibe ukukhanya okubonakalayo noma oku-ultraviolet, okungatholwa futhi kukalwesipm photodetector.Izinto ezihlukile ze-scintillator zisetshenziselwa izinhlobo ezahlukene zemisebe.Isibonelo, i-organic scintillator ivamise ukusetshenziselwa ukuthola izinhlayiya ze-alpha ne-beta, kuyilapho i-inorganic scintillator ivamise ukusetshenziselwa ukuthola imisebe ye-gamma nama-X ray.
Ukukhethwa kwe-scintillator kuncike ezintweni ezifana nebanga lamandla lemisebe ezotholwa kanye nezidingo ezithile zohlelo lokusebenza.
Isikhathi sokuthumela: Oct-26-2023