PbWO₄ Scintillator, Pwo Crystal, Pbwo4 Crystal, Pwo Scintillator

sharaxaad gaaban:

Lead Tungstate - PWO (ama PbWO₄) waa nuugo gamma-rays ah oo aad waxtar u leh sababtoo ah cufnaanta sare iyo sare Z. Waxa kale oo aad u dheereysa dhererka shucaaca aad u gaaban iyo radius moliere.

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Faahfaahinta Alaabta

Tags Product

Faa'iidada

● Awood joojin wanaagsan

● Cufnaanta sare

● Xoogga shucaaca sare

● Waqtiga suuliga degdega ah

Codsiga

● Positron Emission Tomography (PET)

● Fiisigiska tamarta sare ee hawada sare

● Tamar sare oo nukliyeer ah

● Daawooyinka Nukliyeerka

Guryaha

Cufnaanta (g/cm³)	8.28
Nambarka atomiga (waxtarka leh)	73
Dhererka Shucaaca (cm)	0.92
Waqtiga Qulqulka (ns)	6/30
Mawjada (Max. Emission)	440/530
Wax-soosaarka Photoelectron % NaI(Tl)	0.5
Meesha dhalaalaysa(°C)	1123
Adag (Mho)	4
Tusmada Dib-u-celinta	2.16
Hygroscopic	No
Balaadhinta kulaylka Coeff (C⁻¹)	10.0 x 10‾⁶
Burburka Diyaaradda	(101)

Sharaxaada Alaabta

Tungstate lead (PbWO₄/PWO) waa kristayaal scintillation oo caadi ahaan loo isticmaalo tijaabooyinka fiisigiska tamarta sare leh iyo sidoo kale codsiyada sawirka caafimaadka sida PET (positron emission tomography) iyo CT (computed tomography).Mid ka mid ah sifooyinka muhiimka ah ee PWO, waxay leedahay cufnaanta sare, taas oo u oggolaanaysa PWO in ay u nuugaan fallaadhaha gamma si ka waxtar badan marka loo eego crystals kale.Taa baddalkeeda, tani waxay keenaysaa saamiga signal-ilaa-sanqa sare iyo xallinta shucaaca oo wanaagsan.Kiristaalo PWO ayaa sidoo kale loo yaqaan waqtiyada jawaab celinta degdega ah, taas oo ka dhigaysa inay ku habboon yihiin nidaamyada xogta helitaanka xawaaraha sare.

Waxay sidoo kale u adkaysanayaan waxyeellada shucaaca iyo xasilloonida muddada dheer, iyaga oo ka dhigaya doorasho la isku halleyn karo oo loogu talagalay codsiyada deegaanka adag.Si kastaba ha noqotee, soosaarka iftiinka hooseeya ee kiristaalo PWO marka la barbar dhigo qalabka kale ee wax-soo-saarka ayaa xaddidaya dareenkooda codsiyada qaarkood.Crystals waxaa sida caadiga ah lagu koray iyadoo la isticmaalayo habka Czochralski waxaana loo qaabeyn karaa qaabab kala duwan iyadoo ku xiran codsiga.Karistaanka PWO scintillator waxay leeyihiin arrimaha soo socda kuwaas oo ay tahay in la xuso: PWO waxay leedahay wax soo saar iftiin yar.Waxay yihiin shucaac shucaac ah oo ka dhigaya wax aan la aqbali karin codsiyada qaarkood.Waxay u nugul yihiin waxyeelada shucaaca.Laga bilaabo qiyaaso u dhexeeya 1 iyo 10 Gray (10² - 10³ rad).Oo dib loo rogi karaa iyadoo waqti ama annealing.