Kristale yo gukaraba
(Ishusho ya Laser yo ku buso buto)
Ibikoresho bipima hakoreshejwe ikoranabuhanga rya Scintillation, hakoreshejwe filime zikoresha kristale zidafite imiterere ya pixel, niikoreshwa cyane mu gupima uduce duto n'imirasire, harimo no muriscanner za positron emission tomography (PET).
Mu kongeramo ibintu biyobora urumuri kuri kristu, ubushobozi bwo gusuzuma imiterere y'ahantu hakoreshwa icyuma gipima urumuriishobora kunozwa kugeza kuri milimetero, bikongera ubushobozi rusange bwo gusuzuma imiterere y'inyuguti.
Ariko, uburyo gakondo bwogushushanya ku buryo bufatikakristu niinzira igoye, ihenze, kandi iruhijeByongeye kandi, igice cyo gupakira hamwe n'uburyo bwo kumva ibintu bipimabishobora kwangirikabitewe n'ukoibikoresho bigarura urumuri bidakoresha amashanyarazi byakoreshejwe.
Ushobora kureba Inyandiko y'Ubushakashatsi bw'umwimerere hano. (Kuva kuri ResearchGate)
Gushushanya hakoreshejwe laser yo munsi y'ubutaka kuriKristale yo gukaraba
Ubundi buryo ni ugukoreshatekiniki zo gushushanya hakoreshejwe laser yo munsi y'ubuso (SSLE)ku makristu ya scintillator.
Mu gushyira laser imbere muri kristu, ubushyuhe bwakozweishobora gukora imiterere y'udusimba duto duto (microcracks) igenzurwaibyobikora nk'imiterere igaragara, gukora nezapikseli ziyobora urumurihatabayeho gutandukana ku mubiri.
1. Nta gipimo cy'ubuhanga gikenewe mu gupima ishusho y'ikirahure,kugabanya ingorane n'ikiguzi.
2. Imiterere y'urumuri n'imiterere y'imiterere igaragara bishobora kubaigenzurwa neza, bifasha gushushanya imiterere n'ingano bya pikseli byihariye.
3. Gusoma no gupima imiterere y'ibikoreshobiguma ari kimwe no kuri arrays zisanzwe za pixelated.
Uburyo bwo gushushanya hakoreshejwe laser (SSLE) kuri Crystal ya Scintillator
Uburyo bwo gushushanya SSLE bukubiyemointambwe zikurikira:
1. Igishushanyo:
Gushushanya no gushushanyaimiterere ya pikseli wifuza, harimoinganonaimiterere y'amaso.
2. Icyitegererezo cya CAD:
Iremwa ryaicyitegererezo cya CAD kirambuyey'ikwirakwizwa rya microcrack,hashingiwe ku bisubizo byakozwe mu buryo bwo kwigananaIbipimo by'igishushanyo cya laser.
3. Tangira gushushanya:
Gushushanya kristu ya LYSO hakoreshejwe sisitemu ya laser,iyobowe n'icyitegererezo cya CAD.
Uburyo bwo Gutegura SSLE: (A) Icyitegererezo cyo Gusimbuza, (B) Icyitegererezo cya CAD, (C) LYSO yashushanyije, (D) Ishusho y'Umurima w'Imyuzure
4. Isuzuma ry'ibyavuye mu bushakashatsi:
Isuzuma ry'imikorere ya kristu yashushanyije hakoreshejweifoto y'umurima w'umwuzurenaIgikoresho cya Gaussiangusuzuma ubwiza bwa pixel n'uburyo bwo kureba aho ibintu biherereye.
Gushushanya hakoreshejwe laser munsi y'ubuso BIRASOBANURWA MU minota 2
Itsindatekiniki yo gushushanya hakoreshejwe laser munsi y'ubutakakuri kristu za scintillator bitangauburyo bwo guhindura ibintuku ihinduka ry'ibi bikoresho.
Mu gutanga ubuyobozi nyabwo ku miterere y'urumuri n'imiterere y'imiterere y'urumuri, ubu buryobifasha guteza imbere imiterere mishya y'ibikoresho byo gupimahamwe nakunoza uburyo bwo gukemura ibibazo by'ahantu n'imikorere, byosentagukenera gukoresha pixelation igoye kandi ihenze cyane.
Urashaka kumenya byinshi kuri:
Kristale yo mu butaka ikora ibishushanyo bya laser?
Ibyavuye mu bushakashatsi kuri SSLE Scintillation Crystal
1. Ubwinshi bw'urumuri burushaho kwiyongera
Ibumoso: Incamake ya DoI yo Kugaragaza Ubwiza bw'Ubuso Ishushanyije.
Iburyo: Pixel Displacement DoI.
Igereranya ry'imitsi hagati yaimiyoboro ya laser yo munsi y'ubuso (SSLE)naurutonde rusanzweigaragazaumusaruro mwiza cyane w'urumuri kuri SSLE.
Ibi birashoboka ko biterwa n'ukokutagira utugarura-rumuri twa pulasitikihagati ya pikseli, bishobora gutera kudahuza neza kw'amashusho no gutakaza fotoni.
Ubwiyongere bw'umusaruro w'urumuri bivuzeurumuri rwinshi ku ngufu zimwe, bituma SSLE iba umwihariko wifuzwa.
2. Imyitwarire yo kunoza igihe
Ishusho ya Crystal ya Scintillation
Uburebure bwa kristu bufiteingaruka mbi ku gihe, ibyo bikaba ari ingenzi cyane mu gukoresha Positron Emission Tomography (PET).
Ariko,ubushobozi bwo kumenya cyane kristu za SSLEyemerera ikoreshwa ryakristu ngufi, bishoborakunoza imyitwarire y'igihe cya sisitemu.
Simulations zagaragaje kandi ko imiterere itandukanye ya pixel, nka hexagonal cyangwa dodecagonal, ishoborabiyobora urumuri neza kandi bigakoresha igihe neza, bisa n'amahame y'imigozi y'urumuri.
3. Ibyiza Bihendutse ku Giciro
Ifoto ya Crystal ya Scintillator
Ugereranyije n'udukingirizo twa monolithic, igiciro cya kristu za SSLEishobora kuba iri hasi cyane nkakimwe cya gatatuikiguziy'urutonde rwa pixelated rujyanye narwo, bitewe n'ingano za pixel.
Byongeye kandi,ubushobozi bwo kumenya cyane kristu za SSLEyemereraikoreshwa rya kristu ngufi, kurushaho kugabanya ikiguzi rusange.
Tekiniki ya SSLE isaba imbaraga nke za laser ugereranije no gukata laser, bigatumaSisitemu za SSLE zihendutseugereranije n'ibikoresho byo gushonga cyangwa gukata hakoreshejwe laser.
Itsindaishoramari ry'ibanze mu bikorwaremezo n'amahugurwakuri SSLE nabyo biri hasi cyanekurusha ikiguzi cyo gukora icyuma gipima PET.
4. Guhindura imiterere no kuyihindura
Uburyo bwo gushushanya kristu za SSLE nintabwo bitwara igihe, hamwe n'ikigereranyoIminota 15bikenewe kugira ngo hakorwe urutonde rwa mm 12.8x12.8x12, rufite kristale eshatu.
Itsindakamere yoroshye, gukoresha neza amafaranga, naUburyo bworoshye bwo gutegura kristu za SSLEhamwe n'ibyaboigice cyo gupakira cyiza cyane, kwishyura amafarangaubushobozi bwo gukemura ikibazo mu buryo budahagijeugereranije n'amashusho asanzwe ya pixelated.
Imiterere ya Pixel itari isanzwe
SSLE yemerera ubushakashatsi bwaimiterere ya pikseli idasanzwe, bituma pixels zitanga urumuri zibabihuye neza n'ibisabwa byihariye bya buri porogaramu, nka collimators cyangwa ingano ya pixels za silicon photomultiplier.
Gusangira urumuri mu buryo bugenzurwa
Gusangira urumuri bigenzurwa bishobora kugerwaho binyuze mu guhindura neza imiterere y'urumuri rw'ubuso bwashushanyije,koroshya uburyo bwo gupima gamma.
Imiterere idasanzwe
Imiterere idasanzwe, nka Voronoi tessellations, bishobora kubabyashushanyijwe byoroshye mu ma kristu ya monolithicByongeye kandi, gukwirakwiza ingano za pikseli mu buryo butunguranye bishobora gutuma habaho uburyo bwo kumenya ibintu bukozwe mu buryo bufunze, hifashishijwe uburyo bwinshi bwo gusangira urumuri.
Imashini zo gushushanya laser munsi y'ubutaka
Ishingiro ry'ikorwa rya Laser yo munsi y'ubuso riri mu mashini ikora amashusho ya laser. Izi mashini zikoreshalaser y'icyatsi kibisi ifite imbaraga nyinshi, byagenewe by'umwiharikoibishushanyo bya laser byo munsi y'ubuso mu cyuma gishushanyijeho kristu.
ItsindaIgisubizo kimwe rukumbiUzakenera gukoresha ibishushanyo bya laser byo munsi y'ubuso.
IbishyigikirwaImiterere 6 itandukanye
KuvaUmukunzi w'imyidagaduro muke to Umusaruro mu rwego runini
Gusubiramo Ubuziranenge bw'aho hantu at <10μm
Uburyo bwo Kubaga Bwizaku gushushanya hakoreshejwe laser ya 3D
Imashini yo gushushanya 3D Crystal Laser(SSLE)
Ku bijyanye no gushushanya hakoreshejwe laser munsi y'ubutaka,gukora neza ni ingenzigukora amashusho arambuye kandi akomeye. Umurabyo w'icyuma cya laserikorana nezahamwe n'imiterere y'imbere ya kristu,gukora ishusho ya 3D.
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