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Alaabta

Ce: YAG - Crystal Scintillation Muhiim ah

Sharaxaad Gaaban:

Ce: YAG single crystal waa walax si dhakhso ah u qudhuntay oo leh sifooyin dhammaystiran oo heersare ah, oo leh iftiin sare (20000 photons / MeV), suus iftiin degdeg ah (~ 70ns), sifooyin heerkul sare oo heersare ah, iyo hirarka dhaadheer ee iftiinka (540nm) Waa si fiican oo la jaan qaada hirarka xasaasiga ah ee tuubada photomultiplier caadiga ah (PMT) iyo Silicon photodiode (PD), garaaca garaaca iftiinka wanaagsan wuxuu kala saaraa fallaadhaha gamma iyo walxaha alfa, Ce: YAG waxay ku habboon tahay in la ogaado walxaha alfa, electrons iyo rays beta, iwm. sifooyinka walxaha la dallacay, gaar ahaan Ce:YAG single crystal, ayaa suurtogal ka dhigaya in la diyaariyo filimo khafiif ah oo dhumucdiisu ka yar tahay 30um. Ce: YAG scintillation detectors ayaa si weyn loogu isticmaalaa mikroskoobyada elektarooniga ah, tirinta beta iyo raajada, korantada iyo sawirada raajada iyo meelaha kale.


Faahfaahinta Alaabta

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Sharaxaada Alaabta

Ce:YAG waa crystal scintillation muhiim ah oo leh waxqabadka scintillation aad u fiican. Waxay leedahay hufnaan iftiin sare leh iyo garaaca indhaha oo ballaaran. Faa'iidada ugu weyni waa in hirarkeeda dhexe ee iftiinka iftiinka uu yahay 550nm, kaas oo si wax ku ool ah loogu dari karo qalabka lagu ogaanayo sida silicon photodiodes. Marka la barbar dhigo Karistaanka CsI scintillation, Ce: YAG scintillation crystal waxay leedahay waqti qudhun degdeg ah, iyo Ce: YAG scintillation crystal ma laha wax liidasho ah, iska caabin heerkul sare ah, iyo waxqabad heerkuleed deggan. Waxaa inta badan loo isticmaalaa ogaanshaha walxaha iftiinka, ogaanshaha qayb ka alfa, ogaanshaha gamma ray iyo meelaha kale. Intaa waxaa dheer, waxaa sidoo kale loo isticmaali karaa in sawir-qaadista elektarooniga ah (SEM), muraayadda sawir-qaadista ee cabbirka sare ee muraayadda iyo qaybaha kale. Sababtoo ah iskudarka kala soocida yar ee Ce ions ee jaantuska YAG (qiyaastii 0.1), way adagtahay in lagu daro Ce ions kiriimyada YAG, iyo dhibka korriinka kristantarku wuxuu kordhiyaa kororka dhexroorka crystal.
Ce: YAG single crystal waa walax si dhakhso ah u qudhuntay oo leh sifooyin dhammaystiran oo heersare ah, oo leh iftiin sare (20000 photons / MeV), suus iftiin degdeg ah (~ 70ns), sifooyin heerkul sare oo heersare ah, iyo hirarka dhaadheer ee iftiinka (540nm) Waa si fiican oo la jaan qaada hirarka xasaasiga ah ee tuubada photomultiplier caadiga ah (PMT) iyo Silicon photodiode (PD), garaaca garaaca iftiinka wanaagsan wuxuu kala saaraa fallaadhaha gamma iyo walxaha alfa, Ce: YAG waxay ku habboon tahay in la ogaado walxaha alfa, electrons iyo rays beta, iwm. sifooyinka walxaha la dallacay, gaar ahaan Ce:YAG single crystal, ayaa suurtogal ka dhigaya in la diyaariyo filimo khafiif ah oo dhumucdiisu ka yar tahay 30um. Ce: YAG scintillation detectors ayaa si weyn loogu isticmaalaa mikroskoobyada elektarooniga ah, tirinta beta iyo raajada, korantada iyo sawirada raajada iyo meelaha kale.

Astaamaha

● Dhererka mawjadaha (sii daynta ugu badan): 550nm
● Dhererka hirarka: 500-700nm
● Waqtiga qudhunka: 70ns
● Wax soo saarka iftiinka (Sawirro/Mev): 9000-14000
● Tusaha wax-soo-saarka (ugu badnaan qiiqa): 1.82
● Dhererka shucaaca:3.5cm
● Gudbinta (%): TBA
● Gudbinta indhaha (um) :TBA
Luminta Milicsiga/ Dusha sare (%) :TBA
● Xalinta tamarta (%):7.5
● Siideynta fudud [% ee NaI(Tl)] ( fallaadhaha gamma ) :35


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