Kwicandelo lokwenziwa kwezixhobo zonyango, ukuchaneka kokucubungula izixhobo ze-radiotherapy ezichanekileyo kunxulumene ngokuthe ngqo nokusebenza kwezixhobo kunye nesiphumo sonyango lwezigulane. Iqonga lokuhamba kwe-gantry echanekileyo ye-XYZT lixhomekeke kwiingenelo ezikhethekileyo zezixhobo ze-granite, libonelela ngesiqinisekiso esiqinileyo sokusika ngokuchanekileyo, ukubhoboza kunye neminye imisebenzi ye-simulators yezicubu zomntu.
Uzinzo oluhle kakhulu luqinisekisa indawo echanekileyo
Ukucutshungulwa kwamacandelo ezixhobo ze-radiotherapy kufuna ukuchaneka okuphezulu kakhulu kokuma, kwaye naluphi na ukuphambuka okuncinci kunokuchaphazela ukukhanyiswa ngokuchanekileyo kwezicubu ze-tumor ngexesha le-radiotherapy. Izixhobo ze-granite zeqonga le-XYZT ezichanekileyo zokushukuma kwe-gantry, isakhiwo sangaphakathi sixinene kwaye siyafana, sinozinzo oluhle kakhulu. Uxinano lwayo luphezulu njenge-2.6-2.7g/cm³, olunokumelana ngempumelelo nokuphazamiseka kokungcangcazela kwangaphandle, nokuba kwindawo enzima yeworkshop, kodwa lukwanciphisa ubukhulu bokungcangcazela kweqonga ngaphezulu kwe-80%. Xa kusikwa kwaye kugqojozwa ii-simulants zezicubu zomntu, izixhobo ze-granite zibonelela ngenkxaso eqinileyo yeqonga ukuqinisekisa indawo echanekileyo yesixhobo okanye isixhobo sokusika, ngokuchaneka kokuma ukuya kuthi ga kwi-±0.01mm. Umzekelo, xa kucutshungulwa amagqabi e-collimator ezixhobo ze-radiotherapy, indawo kunye nemilo yamagqabi zinokulawulwa ngokuchanekileyo, ukuze imisebe ikwazi ukujoliswa ngokuchanekileyo kwindawo ye-tumor, kuthintelwe ukonakala kwizicubu eziphilileyo ezijikelezileyo.
Ukuqina okuphezulu ukuhlangabezana neemfuno zoomatshini abachanekileyo
Inkqubo yokusika nokubhoboza ii-simulants zezicubu zomntu ineemfuno ezingqongqo malunga nokuqina kwezixhobo. Izinto zegranite zinokuqina okuphezulu kunye namandla okucinezela ukuya kuthi ga kwi-200-300MPa, ezinokumelana namandla amakhulu okusika asetyenziswa sisixhobo kwinkqubo yokucubungula ngaphandle kokuguquka okucacileyo. Ngexesha lokusebenza kokubhoboza kwesifaniso, iqonga linokuhlala lizinzile ukuthintela ukufuduka kwendawo yokubhoboza okanye ukuphambuka komgodi ngenxa yamandla. Kwimeko yezinto zebhedi yonyango yokwenza izixhobo ze-radiotherapy, ukubhoboza okuchanekileyo kufuneka kwisixhobo esilinganisa isakhiwo samathambo omntu ukuze kufakwe izixhobo. Izinto zegranite zeqonga lokuhamba kwe-gantry echanekileyo ye-XYZT zixhasa ukusebenza okuzinzileyo kweqonga, kwaye impazamo yokuchaneka kwendawo yokubhoboza ilawulwa ngaphakathi kwe-±0.02mm, ukuqinisekisa ukuba ibhedi yonyango inokuyilungisa ngokuchanekileyo indawo yesigulana ngexesha lokusetyenziswa, kwaye ihlangabezane neemfuno zezixhobo ze-radiotherapy zokubeka ngokuchanekileyo okuphezulu.
Uzinzo lobushushu lugcina ukuchaneka koomatshini rhoqo
Kwinkqubo yokucubungula izixhobo zonyango, ukusika ubushushu, utshintsho lobushushu bendalo kunye nezinye izinto ziya kuchaphazela ukuchaneka kokucubungula. I-coefficient yokwandisa ubushushu begranite iphantsi kakhulu, ngokubanzi kwi-5-7 × 10⁻⁶/℃, kwaye ubungakanani abutshintshi kakhulu xa ubushushu butshintshatshintsha. Xa kulungiswa ii-simulators zezicubu zomntu ixesha elide, nokuba ubushushu beworkshop butshintshatshintsha kwi-5-10 ° C ngenxa yokusebenza kwezixhobo, umoya opholileyo kunye nezinye izizathu, iqonga elixhaswa zizinto zegranite lisenokugcina ubungakanani obuzinzileyo ukuqinisekisa ukuba ukuchaneka kokusika nokubhola akuchaphazeleki. Umzekelo, ekusikeni ngokuchanekileyo kwezinto ezilinganisa izicubu ezithambileyo zomntu, ukuthamba kunye nokugqitywa komphezulu wokusika kunokuqinisekiswa ukuhlangabezana neemfuno zokulungiswa kakuhle kwezixhobo ze-radiotherapy kunye nezicubu zomntu, kunye nokuphucula ukhuseleko kunye nokusebenza kakuhle kwezixhobo ze-radiotherapy.
Ixesha leposi: Epreli-14-2025