Kodi ziwalo za panoramic x-ray ndi ziti?

 

1) Dongosolo Lopangira X-ray

Chitoliro cha X-ray cha Mano Chozungulira (monga, TOSHIBA D-051)

Chubuchi ndi mtima wa dongosololi. Chimasintha mphamvu yamagetsi kukhala X-ray pogwiritsa ntchito:

• Kathodi/ulusikutulutsa ma elekitironi
• Anode/chandamalekupanga ma X-ray pamene ma elekitironi akuigunda
• Nyumba ya chubundi zotetezera ndi mafuta otetezera kutentha ndi kusamalira kutentha

Mu ntchito yowunikira, chubuchi chiyenera kuthandizira kutulutsa kokhazikika pakuwonekera mobwerezabwereza. Mwachipatala, kukhazikika kumakhudza kuchuluka kwa chithunzi ndi kusiyana kwake; momwe zimagwirira ntchito, zimakhudza kuchuluka kwa kubweza ndi moyo wa chubuchi.

Zimene ogula nthawi zambiri amayesa muChitoliro cha X-ray cha Mano Chowonekera(kuphatikizapo mitundu ngatiTOSHIBA D-051) zikuphatikizapo:

• Kukhazikika kwa malo ofunikira(zimathandiza kusunga kuthwa)
• Magwiridwe antchito a kutentha(ntchito yodalirika m'zipatala zotanganidwa)
• Kugwirizanandi jenereta ndi makina oikira chipangizo cha panoramic

Ngakhale kusintha pang'ono pakukhazikika kwa chubu kungathandize kuchepetsa kubwerezabwereza kwa chubu. Mwachitsanzo, kuchepetsa kuchuluka kwa kubwerezabwereza kwa chubu kuchokera pa 5% mpaka 2% mu chipatala cha anthu ambiri kumathandizira mwachindunji kutulutsa kwa chubu ndikuchepetsa kukhudzidwa kwa ma radiation ndi odwala.

Jenereta Yokhala ndi Mphamvu Yaikulu

Gawoli limapereka:

• kV (voteji ya chubu): imalamulira mphamvu ya kuwala ndi kulowa mkati
• mA (chubu chamagetsi)ndi nthawi yowonekera: imayang'anira kuchuluka kwa zithunzi ndi kuchuluka kwa zithunzi

Machitidwe ambiri a panoramic amagwira ntchito m'malo osiyanasiyana monga60–90 kVndi2–10 mAkutengera kukula kwa wodwala ndi momwe amajambulira zithunzi. Kutulutsa kwa jenereta nthawi zonse ndikofunikira; kusuntha kapena kugwedezeka kumatha kuwoneka ngati kuwala kapena phokoso losasinthasintha.

2) Kupanga Ma Beam ndi Kulamulira Mlingo

Collimator ndi Kusefa

• Collimatorimachepetsera kuwala kwa dzuwa kufika pa geometry yofunikira (nthawi zambiri imakhala mpata woonda wowongoka kuti munthu ayende bwino).
• Kusefa(yowonjezeredwa ndi aluminiyamu) imachotsa ma photoni opanda mphamvu zomwe zimawonjezera mlingo popanda kuwonjezera khalidwe la chithunzi.

Ubwino wake: kusefa bwino ndi kusakaniza bwino zinthu kungachepetse kufalikira kwa matenda osafunikira pamene kuli kofunikira kuti wodwalayo atsatire malamulo ndi kukhala ndi chidaliro.

Kuwongolera Kuwonekera / AEC (ngati ili ndi zida)

Magawo ena ali ndi zinthu zomwe zimathandizira kuti wodwalayo azitha kuchira mwachangu, zomwe zimapangitsa kuti thupi lizigwira ntchito bwino komanso zimathandiza kuchepetsa kubwerezabwereza kwa matendawa.

3) Dongosolo Loyenda ndi Makina

Chida chowunikira bwino si X-ray yokhazikika. Chithunzicho chimapangidwa pamene chubu ndi chowunikira zimazungulira wodwalayo.

Zigawo zazikulu:

• Dzanja lozungulira / gantry
• Ma mota, malamba/magiya, ndi ma encoder
• Mphete zotsetsereka kapena njira yoyendetsera chingwe

Ma encoder ndi calibration ya mayendedwe ndizofunikira kwambiri chifukwa kuthwa kwa panoramic kumadalira mayendedwe ogwirizana. Ngati njira yoyendera ili yolakwika, mutha kuwona kusokonekera, zolakwika pakukulitsa, kapena mawonekedwe osawoneka bwino - mavuto nthawi zambiri amaganiziridwa molakwika ndi chubu pomwe chifukwa chake ndi kulumikizana kwa makina.

4) Dongosolo Lolandirira Zithunzi

Kutengera ndi kupanga zida:

• Masensa a digito(CCD/CMOS/flat-panel) ndi omwe amalamulira machitidwe amakono
• Machitidwe akale angagwiritse ntchitoMapepala a PSPkapena zolandirira zopangidwa ndi filimu

Zinthu zomwe ogula amasamala nazo pakuchita bwino:

• Kusasinthika kwa malo(kuwonekera mwatsatanetsatane)
• Kuchita phokoso(kuthekera kochepa kwa mlingo)
• Mitundu yosinthasintha(imagwira ntchito zosiyanasiyana m'thupi la nsagwada)

Makina a digito amatha kusintha kayendetsedwe ka ntchito mwa kuchepetsa nthawi yopezera zinthu kuti iwonekere kukhala masekondi, zomwe ndi phindu loyezeka pakuchita zinthu zambiri.