Chifukwa chiyani zojambula zamkuwa zimagwiritsidwa ntchito poteteza MRI ndipo zimagwira ntchito bwanji?

Imaging resonance imaging, yomwe nthawi zambiri imatchedwa MRI, ndi njira yosagwiritsa ntchito yowunikira yomwe imagwiritsidwa ntchito kwambiri ndi akatswiri azachipatala kuti athe kuwona momwe thupi limapangidwira.MRI imagwiritsa ntchito mphamvu za maginito ndi mafunde a wailesi kuti ipange zithunzi zambiri za ziwalo, minofu, ndi mafupa a thupi.

Ponena za makina a MRI, funso lomwe nthawi zambiri limakhalapo m'maganizo mwa anthu ndilo chifukwa chake chipinda cha MRI chiyenera kukhala chopangidwa ndi mkuwa?Yankho la funsoli lili mu mfundo za electromagnetism.

Makina a MRI akayatsidwa, amapanga mphamvu yamaginito yamphamvu yomwe ingakhudze zida zamagetsi ndi machitidwe omwe ali pafupi.Kukhalapo kwa maginito kumatha kusokoneza zida zina zamagetsi monga makompyuta, mafoni, ndi zida zamankhwala, ndipo zimatha kusokoneza magwiridwe antchito a pacemaker.

Kuteteza zipangizozi ndi kusunga kukhulupirika kwa zipangizo zojambulira, chipinda cha MRI chimayikidwazojambula zamkuwa, yomwe imakhala ngati chotchinga ku mphamvu ya maginito.Copper ndi yabwino kwambiri, kutanthauza kuti imayamwa ndikumwaza mphamvu yamagetsi ndipo imakhala yothandiza pakuwunikira kapena kutchingira maginito.

Chophimba chamkuwa pamodzi ndi chithovu chotetezera ndi plywood zimapanga khola la Faraday kuzungulira makina a MRI.Khola la Faraday ndi malo otchingidwa kuti atseke minda yamagetsi komanso kupewa kusokoneza zida zamagetsi.Cage imagwira ntchito pogawa magetsi amagetsi mofanana pamwamba pa khola, ndikulepheretsa madera aliwonse akunja a electromagnetic.

Chojambula chamkuwasichimagwiritsidwa ntchito poteteza kokha, komanso kuyika pansi.Makina a MRI amafuna kuti mafunde amphamvu adutse pamakoyilo omwe amapanga maginito.Mafundewa amatha kuyambitsa magetsi osasunthika omwe amatha kuwononga zida komanso kukhala owopsa kwa odwala.Chojambula chamkuwa chimayikidwa pamakoma ndi pansi pa chipinda cha MRI kuti apereke njira yoti mtengowu utuluke pansi.

Kuphatikiza apo, kugwiritsa ntchito mkuwa ngati zotchingira kumapereka maubwino angapo kuposa njira zotchinjiriza zachikhalidwe.Mosiyana ndi mtovu, mkuwa ndi wonyezimira kwambiri ndipo ukhoza kupangidwa mosavuta mu maonekedwe ndi makulidwe osiyanasiyana kuti ukwaniritse zofunikira za chipinda cha MRI.Ndiwotsika mtengo komanso wokonda zachilengedwe kuposa mtovu.

Pomaliza, zipinda za MRI zimayikidwa ndi zojambula zamkuwa pazifukwa zomveka.The chitetezo katundu wazojambula zamkuwatetezani zida zojambulira kuti zisasokonezedwe ndi ma elekitiroma akunja ndikuwonetsetsa chitetezo cha odwala ndi antchito.Chojambula chamkuwa chimaphatikizidwa ndi zipangizo zina kuti apange khola la Faraday lomwe lili ndi maginito opangidwa ndi makina a MRI m'njira yotetezeka komanso yoyendetsedwa.Copper ndi conductor wabwino kwambiri wamagetsi, komanso kugwiritsa ntchitozojambula zamkuwaimatsimikizira kuti makina a MRI akhazikika bwino.Zotsatira zake, kugwiritsa ntchito zojambula zamkuwa pachitetezo cha MRI kwakhala chizolowezi chokhazikika m'makampani onse azachipatala, ndipo pazifukwa zomveka.