Scintillation Crystal
(Umzobo weLaser ongaphantsi komhlaba)
I-scintillation-based detectors, usebenzisa i-pixelated crystal scintillators ephilayo, ziisetyenziswa ngokubanzi ukufumanisa amasuntswana kunye nemitha, kubandakanywa kwiiiskena ze-positron emission tomography (PET)..
Ngokongeza iimpawu ezikhokela ukukhanya kwikristale, isisombululo sendawo ye-detectorinokuphuculwa kwi-millimeter scale, iphucula isisombululo esipheleleyo se-tomograph.
Nangona kunjalo, indlela yemveli yepixelating ngokomzimbaiikristale nguinkqubo entsonkothileyo, ebiza kakhulu, kwaye inzima. Ukongezelela, iqhekeza lokupakisha kunye novakalelo lwe-detectorinokuba sengoziningenxa yeizinto ezibonisayo ezingasebenziyo.
Ungajonga iPhepha loPhando loQoqosho Apha. (Ukusuka kwiGate loPhando)
Umkrolo weLaser ongaphantsi komhlaba weScintillation Crystal
Enye indlela kukusetyenziswa kweiindlela zangaphantsi komhlaba laser engraving (SSLE) ubuchuleiikristale zescintillator.
Ngokugxininisa i-laser ngaphakathi kwekristale, ubushushu buvelisweinokudala ipateni elawulwayo yee-microcracksukubasebenza njengezinto ezibonisayo, ukudala ngokufanelekileyoiiphikseli ezikhokela ukukhanyangaphandle kwesidingo sokwahlukana ngokwasemzimbeni.
1. Akukho pixelation yomzimba yekristale efunekayo,ukunciphisa ubunzima kunye neendleko.
2. Iimpawu ze-optical kunye nejometri yezakhiwo ezibonisayo zingabailawulwa ngokuchanekileyo, eyenza uyilo lwemilo yepixel yesiko kunye nobukhulu.
3. I-readout kunye ne-architecture ye-detectorhlala ufana nomgangatho woluhlu lwepixelated.
Inkqubo yokukrola iLaser (SSLE) yeScintillator Crystal
Inkqubo yokukrola ye-SSLE ibandakanyala manyathelo alandelayo:
1. Uyilo:
Ukulinganisa kunye noyilo lweUyilo olufunwayo lwe-pixel, kuqukaimilinganiselokwayeiimpawu zamehlo.
2. Umzekelo weCAD:
Ukudalwa kweimodeli yeCAD eneenkcukachaUkuhanjiswa kwe-microcrack,ngokusekelwe kwiziphumo zokulinganisakwayelaser engraving iinkcukacha.
3. Qalisa uMzobo:
Okwenyani umzobo wecrystal yeLYSO usebenzisa inkqubo yelaser,ikhokelwa yimodeli yeCAD.
Inkqubo yoPhuhliso lwe-SSLE: (A) iModeli yokulinganisa, (B) iModeli yeCAD, (C) ekroliweyo i-LYSO, (D) iSazobe soMkhukula woMmandla
4. Uvavanyo lweziphumo:
Uvavanyo lomsebenzi wekristale okroliweyo usebenzisa aumfanekiso webala lezikhukhulakwayeUkufaneleka kweGaussianukuvavanya umgangatho wepixel kunye nesisombululo sesithuba.
I-Subsurface Laser Engraving ICACILE kwiMizuzu emi-2
Iubuchule bokukrola i-laser engaphantsi komhlabakuba iikristale scintillator inikeza aindlela yokuguqulaukuya kwipixelation yezi mathiriyeli.
Ngokubonelela ngolawulo oluchanekileyo kwiimpawu ze-optical kunye nejometri yezakhiwo ezibonisayo, le ndlelayenza ukuba kuphuhliswe ulwakhiwo lwezixhobo ezitsha zokucingangeukuphuculwa kwesisombululo sesithuba kunye nokusebenza, zonkengaphandleIsidingo sokwenza ipixelation yomzimba entsonkothileyo kunye neendleko.
Ufuna ukwazi ngakumbi malunga:
Umphezulu weLaser uMzobo weCrystal yeScintillation?
Iziphumo ze-SSLE Scintillation Crystal
1. UkuPhuculwa kokuKhanya
Ekhohlo: Umkrolo woMphezulu wokuReflectivity Asymmetry DoI Overview.
Ekunene: I-Pixel Displacement DoI.
Ukuthelekiswa kwee-pulses phakathisubsurface laser ekroliweyo (SSLE) uluhlukwayeuluhlu oluqhelekileyoibonisa aisivuno esingcono kakhulu se-SSLE.
Oku kunokwenzeka ngenxa yeukungabikho kwezibonisi zeplastikiphakathi kweepikseli, ezinokubangela ukungafani kwe-optical kunye nokulahleka kwefoton.
Ukuphuculwa kwesivuno sokukhanya kuthethaukukhanya ngakumbi kwiipulses zamandla ezifanayo, ukwenza i-SSLE ibe luphawu olunqwenelekayo.
2. Indlela Yokuziphatha Eyongeziweyo
Umfanekiso weScintillation Crystal
Ubude bekristale buneifuthe elibi kwixesha, eyona nto ibalulekileyo kwizicelo zePositron Emission Tomography (PET).
Nangona kunjalo, iUvakalelo oluphezulu lweekristale ze-SSLEivumela ukusetyenziswa kweiikristale ezimfutshane, enokuthiukuphucula ukuziphatha kwexesha kwenkqubo.
Ukulinganisa kukwacebise ukuba iimilo zepixel ezahlukeneyo, ezinje ngehexagonal okanye idodecagonal, kungenzekakukhokelela kukukhanya okungcono kunye nokusebenza kwexesha, efana nemigaqo ye-optical fibers.
3. IiNdlela eziNcedayo eziSebenzayo
Umfanekiso weScintillator Crystal
Xa kuthelekiswa neebhloko ze-monolithic, ixabiso leekristale ze-SSLEinokuba ngaphantsi njengeIkota enyeyeendlekoyoluhlu oluhambelanayo lwepixelated, ngokuxhomekeke kwimilinganiselo yepixel.
Ukongeza, iUvakalelo oluphezulu lweekristale ze-SSLEivumelaukusetyenziswa kweekristale ezimfutshane, ukunciphisa ngakumbi iindleko zizonke.
Ubuchwephesha be-SSLE bufuna amandla asezantsi e-laser xa kuthelekiswa nokusika kwe-laser, ukuvumelaIinkqubo ze-SSLE ezingabizi kakhuluxa kuthelekiswa nezixhobo zokunyibilika kwelaser okanye zokusika.
IUtyalo-mali lokuqala kwiziseko ezingundoqo noqeqeshoye-SSLE nayo isezantsi kakhulukuneendleko zokuphuhlisa i-PET detector.
4. Uyilo lokuguquguquka kunye nokwenza ngokwezifiso
Inkqubo yokukrola iikristale ze-SSLE yiayidli ixesha, ngoqikeleloImizuzu eli-15efunekayo ukukrola 12.8x12.8x12 mm, 3-crystal uluhlu.
Iindalo ebhetyebhetye, ukusebenza kakuhle kweendleko, kwayeukukhululeka kokulungiswa kweekristale ze-SSLE, kunye naboiqhezu lokupakisha eliphezulu, ubuyekeze iisisombululo sesithuba esingaphantsi kancincixa kuthelekiswa nemigangatho yepixelated esemgangathweni.
Iijiyometri zePixel ezingaQekanga
I-SSLE ivumela ukuphononongwa kweiijiyometri zepixel ezingezizo eziqhelekileyo, eyenza ukuba i-scintillating pixels ibeifaniswe ngokuchanekileyo neemfuno ezithile zesicelo ngasinye, njengee-collimators okanye imilinganiselo ye-silicon photomultiplier pixels.
Ukwabelana ngokuKhanya okuLawulweyo
Ukwabelana ngokukhanya okulawulwayo kunokufezekiswa ngokuguqulwa okuchanekileyo kweempawu ezibonakalayo zemigangatho ekroliweyo,ukuququzelela ngakumbi ukwenziwa kweminiaturization ye-gamma detectors.
Uyilo olungaqhelekanga
Uyilo olungaqhelekanga, njengeVoronoi tessellations, ingabaikrolwe ngokulula ngaphakathi kweekristale ze-monolithic. Ngaphaya koko, usasazo olungakhethiyo lobungakanani bepikseli lunokwenza ukuqaliswa kweendlela zokuva ezicinezelekileyo, ukuthatha ithuba lokwabelana ngokukhanya okubanzi.
Oomatshini boMkrolo weLaser engaphantsi komhlaba
Intliziyo ye-Subsurface Laser yokudala ilele kumatshini wokukrola we-laser. Aba matshini bayasebenzai-laser eluhlaza enamandla aphezulu, eyenzelwe ngokukodwai-subsurface laser ekrolwa kwikristale.
ISinye & Isisombululo kuphelauyakuze uyifunele iSubsurface Laser Engraving.
Ixhasa6 Ulungelelwaniso olwahlukileyo
UkusukaI-Hobbyist encinci yeSikali to Uveliso oluKhulu oluPhezulu
Ukuchaneka kweNdawo okuphindiweyo at <10μm
Ukuchaneka koCandokuba 3D Laser Carving
3D Crystal Laser uMzobo Machine(SSLE)
KuMzobo weLaser ongaphantsi komhlaba,ukuchaneka kubalulekileukwenza imizobo eneenkcukacha kunye nentsonkothileyo. I-laser igxininise umqadiisebenzisana ngokuchanekileyokunye nolwakhiwo lwangaphakathi lwekristale,ukwenza umfanekiso we3D.
Ephathekayo, Echanekile & Ekwinqanaba Eliphambili
Umzimba weLaser Compactye-SSLE
Ubungqina bomothuko&Ikhuselekile kubaQalayo
Ukukrolwa kweCrystal ngokukhawulezaukuya kuthi ga kwi-3600 amanqaku / ngomzuzwana
Ukuhambelana okukhulukuYilo