Yiziphi izingxenye ze-panoramic x-ray?

 

1) Uhlelo Lokukhiqiza i-X-ray

Ishubhu le-X-ray lamazinyo elibanzi (isb., i-TOSHIBA D-051)

Ipayipi liyinhliziyo yesistimu. Liguqula amandla kagesi abe yi-X-ray kusetshenziswa:

• I-Cathode/intamboukukhipha ama-electron
• I-anode/ithagethiukukhiqiza ama-X-ray lapho ama-electron eshaya
• Izindlu zamapayipingezivikelo kanye namafutha okuvikela nokulawula ukushisa

Emisebenzini ye-panoramic, ithubhu kumele isekele umkhiqizo ozinzile ekuvezweni okuphindaphindiwe. Ngokwezokwelapha, ukuzinza kuthinta ubuningi besithombe kanye nokuqhathanisa; ngokusebenza, kuthinta amazinga okuthathwa kabusha kanye nokuphila kwethubhu.

Lokho abathengi abavame ukukuhlola ku-Ishubhu ye-X-ray yamazinyo ebanzi(kufaka phakathi amamodeli afanaTOSHIBA D-051) kufaka phakathi:

• Ukuqina kwendawo egxile(kusiza ukugcina ubukhali)
• Ukusebenza kokushisa(ukusebenza okuthembekile emitholampilo ematasa)
• Ukuhambisanangejeneretha kanye nokukhwezwa komshini kweyunithi ye-panoramic

Ngisho nokuthuthukiswa okuncane ekuzinzeni kwamapayipi kunganciphisa ukuthathwa kabusha. Isibonelo, ukunciphisa imvamisa yokuthathwa kabusha kusuka ku-5% kuya ku-2% emtholampilo onomthamo omkhulu kuthuthukisa ngqo ukuphuma kwegazi futhi kunciphisa ukuchayeka emisebeni yesiguli.

Ijeneretha Enamandla Aphezulu

Le module inikeza:

• i-kV (i-voltage yeshubhu): ilawula amandla okukhanya kanye nokungena
• mA (ishubhu yamanje)kanye nesikhathi sokuchayeka: kulawula umthamo kanye nokuminyana kwesithombe

Izinhlelo eziningi ze-panoramic zisebenza ezindaweni ezifana60–90 kVfuthi2–10 mAkuye ngobukhulu besiguli kanye nemodi yokuthwebula izithombe. Ukukhishwa kwejeneretha okuqhubekayo kubalulekile; ukukhukhuleka noma ukugobhoza kungabonakala njengokukhanya okungaguquki noma umsindo.

2) Ukwakheka Kwemisebe Nokulawulwa Kwedosi

I-Collimator kanye ne-Filtration

• I-Collimatorkunciphisa umsebe ube yi-geometry edingekayo (ngokuvamile umngxuma omncane oqondile wokunyakaza okubonakalayo).
• Ukuhlunga(okungeziwe okulingana ne-aluminium) kususa ama-photon anamandla aphansi akhulisa umthamo ngaphandle kokuthuthukisa ikhwalithi yesithombe.

Inzuzo engokoqobo: ukuhlunga okungcono kanye nokuhlanganisa kunganciphisa ukuvezwa okungadingekile ngenkathi kugcinwa imininingwane yokuxilonga—okubalulekile ekulandeleni imithetho kanye nokuzethemba kwesiguli.

Ukulawulwa Kokuchayeka / i-AEC (uma ifakwe)

Amanye amayunithi afaka izici zokuchayeka ngokuzenzakalela ezilungisa umkhiqizo ngokwesayizi wesiguli, zithuthukise ukuhambisana futhi zisize ekunciphiseni ukuphindaphinda kokuthatha.

3) Uhlelo Lokunyakaza Kwemishini

Iyunithi ye-panoramic akuyona i-X-ray engaguquki. Isithombe senziwa ngenkathi i-tubehead kanye ne-detector zijikeleza isiguli.

Izingxenye ezibalulekile:

• Ingalo/i-gantry ejikelezayo
• Ama-motor, amabhande/amagiya, kanye nama-encoder
• Izindandatho zokushelela noma uhlelo lokuphatha ikhebula

Ama-encoder kanye nokulinganiswa kokunyakaza kubaluleke kakhulu ngoba ubukhali be-panoramic buxhomeke ekunyakazeni okuhambisanayo. Uma indlela yokunyakaza ingasebenzi, ungabona ukuhlanekezela, amaphutha okukhulisa, noma i-anatomy efiphele—izinkinga zivame ukubhekwa kabi ngepayipi lapho imbangela eyinhloko iwukuqondaniswa kwemishini.

4) Uhlelo Lokwamukela Izithombe

Kuye ngokukhiqizwa kwemishini:

• Izinzwa zedijithali(i-CCD/CMOS/flat-panel) ilawula izinhlelo zesimanje
• Izinhlelo ezindala zingasebenzisaAmapuleti e-PSPnoma ama-receptor asekelwe kufilimu

Izinto ezithinta ukusebenza kahle abathengi abazikhathalelayo:

• Isixazululo sendawo(ukubonakala kwemininingwane)
• Ukusebenza komsindo(ikhono lomthamo ophansi)
• Ububanzi obuguqukayo(iphatha ubuningi obuhlukene kuyo yonke i-anatomy yomhlathi)

Izinhlelo zedijithali zingathuthukisa ukuhamba komsebenzi ngokufinyeza isikhathi sokuthola-ukuya ekubukeni sibe yimizuzwana, okuyinzuzo yokukhiqiza elinganiswayo emikhubeni yezihlalo eziningi.