Gradient Coil ya MRI
Mu dongosolo la MRI scan, ntchito ya coil yama gradient makamaka ndikuzindikira kupatula kwa malo. Mukamayang'ana chithunzichi, ma X, Y, ndi Z ma coil gradient a coils atatu amagwirira ntchito limodzi kuti apange kusankha kwa kagawo, kufotokozera pafupipafupi komanso kusanja magawo motsatana. Pakadutsa pano ma coil awa maginito achiwiri amapangidwa. Munda wama gradientwu umasokoneza pang'ono maginito m'njira yomwe imatha kudziwikiratu, ndikupangitsa ma proton pafupipafupi kuti azisinthasintha ngati magwiridwe antchito. Ntchito yayikulu yama gradients, chifukwa chake, ndikuloleza kusungidwa kwakanthawi kwa chizindikiritso cha MR. Ma coil gradient amakhalanso ofunikira pamitundu ingapo ya "physiologic" maluso, monga MR angiography, kufalikira, ndi kujambula kwa perfusion.
Nthawi yomweyo, koyilo yama gradient imathandizanso pantchito yochepetsera komanso yotsutsa-eddy
Kampani yathu imapereka ma coil gradient gradient coils okhala ndi magwiridwe antchito, omwe angakwaniritse zosowa zogwiritsa ntchito.
Kuchokera pamapangidwe, mawonekedwe amtundu wa X, Y, Z okhala ndi njira zitatu, osavuta kulumikizana, ndipo amatha kukhala ndi njira yoziziritsira madzi, yomwe imatha kuziziritsa koyilo ya gradient ndikupanga kulingalira okhazikika kwambiri;
Itha kupangidwanso ngati koliyala yotetezedwa mwachangu kuti ichepetse kusintha kwamakono kuchokera pagwero. Chifukwa njira yothandiza kwambiri yoyendetsera ma eddy ndikuteteza kutulutsa kwa ma eddy koyamba. Izi ndizomwe zimakulimbikitsani kuti mukhale ndi zotchingira (zodzitchinjiriza); pakali pano pa coil yotetezera imagwiritsidwa ntchito kuthamangira kolowera kolowera kojambula kuti ichepetse mafunde akuthwa. Coil yama gradient yopangidwa motere ndiyodalirika komanso yolimba.
1.Kulimbitsa mphamvu: 25mT / m
2. Kuyenda bwino: <5%
3.Kukwera nthawi: ≥0.3ms
4. Kusintha: ≥80mT / m / ms
Kukula kwake kumatha kusinthidwa malinga ndi zomwe makasitomala amafuna