A. Basic chimiro cheCT scanner

 

Mushure memakore ebudiriro, ma CT scanners akave nekuvandudzwa kwakakosha, kusanganisira kuwedzera kwenhamba ye detector layer uye nekukurumidza scanning. Nekudaro, zvinhu zvavo zvehardware zvinoramba zvakangofanana uye zvinogona kukamurwa kuita zvikamu zvitatu zvikuru:

 

1) X-ray detector gantry

2）Computerized console

3）Tafura yemurwere yekumisikidza

4) Zvimiro uye zvinoshanda, CT scanners ine zvinotevera zvikamu:

 

Chikamu chine basa rekudzora kutariswa kwekombuta uye kuvakazve mufananidzo

Mechanical chikamu chekumisikidza murwere uye scanning, iyo inosanganisira scanning gantry uye mubhedha

High-voltage X-ray jenareta uye X-ray chubhu yekugadzira X-rays

Kutora data uye kuona chikamu chekutora ruzivo uye data

Zvichienderana neaya akakosha ekumisikidza hunhu hweCT scanner, munhu anogona kuona iyo yekutanga gwara rekugadzirisa dambudziko kana paine kusashanda.

 

Zvikamu zviviri, masosi, uye hunhu hweCT muchina kukanganisa

 

Kutadza kwemuchina weCT kunogona kuiswa mumhando nhatu: kutadza kunokonzerwa nemamiriro ekunze, kukanganisa kunokonzerwa nekushanda zvisina kunaka, uye kutadza nekuda kwekuchembera uye kuparara kwechikamu mukati meiyo CT system, zvichitungamira kune parameter kudonha uye kupfeka kwemuchina.

 

1)unonyuchi dzinokonzerwa nemamiriro ekunze

Zvinhu zvakatipoteredza zvakaita setembiricha, humidity, kucheneswa kwemhepo, uye kugadzikana kwemagetsi zvinogona kukonzera kutadza kwemuchina weCT. Kusave nemhepo yakakwana uye tembiricha yekamuri yepamusoro inogona kukonzera midziyo yakaita semagetsi emagetsi kana ma transformer kuti awedzere, izvo zvinogona kutungamira kukuvadzwa kwebhodhi redunhu. Kuvhiringwa kwemuchina uye tembiricha yakawandisa inokonzerwa nekusatonhodza kwakaringana inogona kugadzira zvigadzirwa zvemifananidzo. Kuwedzera muCT supply voltage kunogona kukanganisa kushanda kwakakodzera kwekombuta, zvichikonzera kusagadzikana mukushanda kwemuchina, kumanikidzwa kusingawanzo, X-ray kusagadzikana, uye pakupedzisira kukanganisa kunaka kwemufananidzo. Kushambidzika kwemhepo kucheneswa kunogona kukonzera kuunganidzwa kweguruva, zvichitungamira kune kusashanda zvakanaka mukutarisa kwechiratidzo chekufambisa. Kunyanya kunyorova kunogona kukonzera mapfupi-sekita uye kukanganisa kwemagetsi mudziyo. Zvinhu zvakatipoteredza zvinogona kukuvadza zvakanyanya kumichina yeCT, dzimwe nguva ichitokonzera kukuvara zvachose. Naizvozvo, kuchengetedza yakanyatsoshanda nharaunda kwakakosha mukuderedza CT muchina kukanganisa uye kuwedzera hupenyu hwavo hwesevhisi.

 

2）Kukanganisa kunokonzerwa nekukanganisa kwevanhu uye kushanda kusina kunaka

Zvinowanzoitika zvinokonzeresa kukanganisa kwevanhu zvinosanganisira kushaikwa kwenguva yekudziya-up routines kana calibration, zvichikonzera kusagadzikana kwemufananidzo kufanana kana nyaya dzemhando, uye kutadza kumira kwemurwere kunotungamirira kumifananidzo isingadikanwi. Metal artifacts inogona kugadzirwa kana varwere vakapfeka zvinhu zvesimbi panguva yekuongororwa. Kushanda akawanda CT muchina panguva imwe chete kunogona kutungamirira mukuputsika, uye kusarudzwa kwakashata kwekutarisa paramita kunogona kuunza mifananidzo yakagadzirwa. Kazhinji, kukanganisa kwevanhu hakukonzeri mhedzisiro yakaoma, chero bedzi zvikonzero zviri pasi zvaonekwa, nzira dzakafanira dzinoteverwa, uye sisitimu inotangwa patsva kana kushandiswa patsva, nekudaro zvinobudirira kugadzirisa nyaya.

 

3) Hardware kukundikana uye kukanganisa mukati meCT system

CT hardware zvikamu zvinogona kusangana nekwavo kukundikana kwekugadzira. Mune akawanda akura maCT system, kukundikana kunoitika zvinoenderana nesadhi-yakaita maitiro nekufamba kwenguva, zvichitevera mukana wehuwandu. Nguva yekuisa inoratidzirwa nemwero wepamusoro wekutadza mumwedzi mitanhatu yekutanga, ichiteverwa neyakagadzikana yakaderera mwero wekutadza mukati menguva yakareba yemakore mashanu kusvika masere. Mushure menguva iyi, chiyero chekukundikana chinowedzera zvishoma nezvishoma.

 

 

a. Mechanical chikamu chakakundikana

 

Kukanganisa kukuru kunotevera kunonyanya kukurukurwa:

 

Sezvo mazera emidziyo, kutadza kwemichina kunowedzera gore rega rega. Mumazuva ekutanga eCT, reverse rotation mode yakashandiswa mumutambo we scan, ine pfupi pfupi yekutenderera yakashandura kubva kune yunifomu kusvika kune zvishoma uye yakamira kakawanda. Izvi zvakakonzera kuwanda kwehuwandu hwekutadza kwemakanika. Nyaya dzakaita sekumhanya kusina kugadzikana, kutenderera kusingadzoreki, matambudziko ebhureki, uye nyaya dzemabhandi dzainge dzawanda. Pamusoro pezvo, kupfeka kwetambo uye kuputsika kwakaitika. Mazuvano, mazhinji emuchina weCT anoshandisa tekinoroji yemhete yekutenderera nzira imwe chete, uye mimwe michina yepamusoro-soro inosanganisa tekinoroji yedhiraivha, ichideredza zvakanyanya kuputsika mumakina anotenderera. Nekudaro, zvindori zvinotsvedza zvinounza yavo seti yekukanganisa, sezvo kukweshana kwenguva refu kunogona kukonzera kusabatana kwakashata uye kukonzeresa kutadza kwemagetsi nemagetsi sekusingadzoreki kutenderera, kudzvanya-kudzvinyirira, kupisa (munyaya yekutsvedza mhete), uye kurasikirwa kwekutonga. zviratidzo (munyaya yekutsvedza mhete). Kugara uchigadzirisa uye kutsiva slip zvindori zvakakosha. Zvimwe zvinhu, senge X-ray collimators, zvakare zvinotarirwa kutadza kwemuchina sekunamira kana kubuda mukudzora, nepo mafeni anogona kutadza mushure mekushanda kwenguva refu. Iyo pulse jenareta inotarisira mota inotenderera inodzora masiginecha inogona kusangana nekupfeka kana kukuvadzwa, zvichitungamira kune pulse kurasikirwa zviitiko.

 

b. X-ray chikamu-yakagadzirwa kukanganisa

 

X-ray CT muchina wekugadzira dhizaini inotsamira pane akati wandei zvinosanganisira akakwira-frequency inverters, high-voltage transformers, X-ray tubes, control circuits, uye high-voltage tambo. Zvinowanzokanganisa zvinosanganisira:

 

X-ray chubhu kukundikana: Izvi zvinosanganisira kutenderera anode kutadza, kuratidzwa neruzha runotenderera, uye zviitiko zvakakomba apo switching inove isingagoneki kana anode inonamira, zvichikonzera kuti iwedzere kana yafumurwa. Kukundikana kwefilament kunogona kukonzera pasina mwaranzi. Girazi core leakage inotungamira mukutsemuka kana kubuda, kudzivirira kuratidzwa uye kukonzera vacuum kudonha uye high-voltage ignition.

 

High-voltage chizvarwa kukundikana: Kukanganisa mu inverter circuit, kuputsika, pfupi-circuits mu-high-voltage transformer, uye kupisa kana kuputsika kwe-high-voltage capacitors zvinowanzokonzera kuti fuse inoenderana nayo ivhuvhute. Kuratidzwa kunove kusingabviri kana kunovhiringwa otomatiki nekuda kwedziviriro.

 

High-voltage cable kukanganisa: Nyaya dzakajairika dzinosanganisira dzakasununguka zvibatanidza zvinokonzeresa kupisa, kuwandisa, kana yakakwirira voltage. Mukutanga CT michina, kushandiswa kwenguva refu kunogona kukonzera kupfeka uye kubvarura pamatambo akakwira-voltage yekubatidza, zvichikonzera mukati mapfupi-masekiti. Kukundikana uku kunowanzoenderana nefuse inoputika.

 

c. Zvikanganiso zvine chekuita nekombuta

 

Kukundikana muchikamu chekombuta cheCT michina haiwanzo uye kazhinji iri nyore kugadzirisa. Zvinonyanya zvinosanganisira nyaya diki nezvikamu zvakaita sekiyibhodhi, mbeva, mabhora ekutamba, nezvimwewo zvakadaro, kukundikana mumadhisiki akaoma, tepi madhiraivha, uye magineti-optical zvishandiso zvinogona kuitika nekuda kwekushandiswa kwenguva refu, nekuwedzera kwenzvimbo dzakaipa zvinotungamira kune yakazara. kukuvara.

 

Kuti uwane rumwe ruzivo nezve CT michina uye kushandiswa kwe-high-voltage ceramic capacitors muX-ray zvishandiso, ndapota shanya www.hv-caps.com.