Ukunqongophala kwe-Helium kubangela imvakalelo entsha yongxamiseko kuluntu lokucinga lwezonyango

I-NBC News isandul 'ukuxela ukuba iingcali zezempilo zixhalaba ngakumbi malunga nehlabathi jikelelei-heliumukunqongophala kunye nefuthe layo kwintsimi ye-imaging resonance magnetic.IHeliumkubalulekile ukugcina umatshini weMRI upholile ngelixa usebenza. Ngaphandle kwayo, iskena asinakusebenza ngokukhuselekileyo. Kodwa kwiminyaka yakutshanje, ihlabathii-heliumunikezelo lutsale ingqwalasela enkulu, kwaye abanye ababoneleli baqalise ukukala into engahlaziyekiyo.

Nangona oku kuqhubeka ishumi leminyaka okanye ngaphezulu, umjikelo weendaba zamva nje ngesihloko ubonakala ukongeza kwimvakalelo yongxamiseko. Kodwa ngasiphi isizathu?

Njengakuninzi lweengxaki zobonelelo kule minyaka mithathu idlulileyo, ubhubhani uye washiya amanqaku athile kubonelelo kunye nokuhanjiswai-helium. Imfazwe yaseUkraine nayo yaba nefuthe elikhulu ekunikezelweni kwei-helium. Kuze kube kutshanje, iRashiya bekulindeleke ukuba ibonelele njengesithathu se-helium yehlabathi ukusuka kwindawo enkulu yokuvelisa eSiberia, kodwa umlilo kwindawo yabambezeleka ukuqaliswa kwaye imfazwe yaseRashiya e-Ukraine iye yandisa ngakumbi ubudlelwane bayo kunye nobudlelwane borhwebo base-US. . Zonke ezi zinto zidibanisa ukunyusa iingxaki zekhonkco lokubonelela.

UPhil Kornbluth, umongameli weKornbluth Helium Consulting, wabelane ngeNBC News ukuba i-US ibonelela malunga neepesenti ezingama-40 zehlabathi.i-helium, kodwa isine kwisihlanu sababoneleli abakhulu belizwe sele beqalisile ukukala. Njengababoneleli kutshanje bengene kunqongophalo lwe-iodine yokuthelekisa, ababoneleli be-helium baguqukela kubuchule bokunciphisa obubandakanya ukubeka phambili amashishini anezona mfuno zibalulekileyo, ezifana nokhathalelo lwempilo. La manyathelo akukatolikwa ekurhoxisweni kweemviwo zemifanekiso, kodwa sele ebangele ukothuka okwaziwayo kuluntu lwenzululwazi nophando. Iinkqubo ezininzi zophando zeHarvard zivaliwe ngokupheleleyo ngenxa yokunqongophala, kwaye u-UC Davis wabelana kutshanje ukuba omnye wababoneleli babo unqumle izibonelelo zabo ngesiqingatha, nokuba kungenxa yezonyango okanye hayi. Lo mcimbi uphinde wabamba ingqalelo yabenzi be-MRI. Iinkampani ezifana ne-GE Healthcare kunye ne-Siemens Healthineers ziye zavelisa izixhobo ezisebenza kakuhle kwaye zifuna ngaphantsii-helium. Nangona kunjalo, obu buchule abukasetyenziswa ngokubanzi.