Ngaphakathi kweSixhobo esikhulu se-Helical saseJapan (i-LHD) seenkwenkwezi, eyakhelwe ukuvavanya ukuvalelwa kwe-plasma fusion. Ngetyala: Justin Ruckman
Ukuqonda okutsha ekuqondeni isiphithiphithi kwi-fusion plasmas.
Ukuze kuphunyezwe ukudityaniswa kwiplanti yombane, kuyimfuneko ukuvalela ngokuzinzileyo iplasma engaphezulu kwe-100 yezigidi zeedigri zeCelsius kwindawo yemagnethi kwaye uyigcine ixesha elide.
Iqela lophando elikhokelwa nguNcedisi uNjingalwazi uNaoki Kenmochi, uNjingalwazi uKatsumi Ida, kunye noNjingalwazi onguNjingalwazi uTokihiko Tokuzawa weNational Institute for Fusion Science (NIFS), amaZiko eSizwe eSayensi yeNdalo (NINS), eJapan, esebenzisa izixhobo zokulinganisa eziphuhliswe ngokuzimeleyo nangentsebenziswano. kaNjingalwazi uDaniel J. den Hartog weYunivesithi yaseWisconsin, eUnited States, wafumanisa okwesihlandlo sokuqala ehlabathini ukuba isiphithiphithi sihamba ngokukhawuleza kunobushushu xa ubushushu buphuma kwiiplasma kwiSixhobo esikhulu seHelical (LHD). Olunye uphawu lwesi siphithiphithi lwenza kube lula ukuqikelela utshintsho kwiqondo lobushushu kwiplasma, kwaye kulindeleke ukuba ukuqwalaselwa kwesiphithiphithi kuya kukhokelela kuphuhliso lwendlela yokulawula ixesha lokwenyani lobushushu beplasma kwixesha elizayo.
Kwiplasma yobushushu obuphezulu obuvalelwe yimagnethi, “isiphithiphithi,” esihamba nee-vortex zobukhulu obahlukeneyo, senziwa. Esi siphithiphithi sibangela ukuba i-plasma iphazamiseke, kwaye ubushushu obusuka kwi-plasma evaliweyo buphumela ngaphandle, okubangela ukwehla kobushushu beplasma. Ukuxazulula le ngxaki, kuyimfuneko ukuqonda iimpawu zokushisa kunye ne-turbulence kwi-plasma. Nangona kunjalo, isiphithiphithi kwi-plasmas sintsokothile kangangokuba asikafumani ukuqonda ngokupheleleyo. Ngokukodwa, indlela isiphithiphithi esiveliswe ngayo esihamba ngayo kwiplasma ayiqondwa kakuhle, kuba ifuna izixhobo ezinokulinganisa ixesha lokuvela kwesiphithiphithi esinovakalelo oluphezulu kunye nesisombululo esiphezulu kakhulu se-spatiotemporal.
"Isithintelo" sinokuqulunqa kwi-plasma, eyenza ukuthintela ukuthuthwa kobushushu ukusuka kwiziko ukuya ngaphandle. Umqobo wenza i-gradient yoxinzelelo oluqinileyo kwiplasma kwaye ivelise isiphithiphithi. UNjingalwazi oncedisayo uKenmochi kunye neqela lakhe lophando baye baphuhlisa indlela yokuqhawula lo mqobo ngokuqulunqa isakhiwo samagnetic field. Le ndlela ivumela ukuba sigxininise kubushushu kunye nesiphithiphithi esihamba ngamandla njengoko imiqobo iphula, kwaye sifunde ubudlelwane babo ngokweenkcukacha. Emva koko, sisebenzisa amaza ombane anobude obahlukeneyo, salinganisa ubushushu obutshintshayo kunye nokuhamba kobushushu bee-electron kunye ne-millimeter-ubungakanani besiphithiphithi esihle esinenqanaba eliphezulu lokuchaneka kwehlabathi. Ngaphambili, ubushushu nezidubedube zazisaziwa zihamba phantse ngaxeshanye ngesantya esiziikhilomitha ezingama-5,000 3,100 ngeyure (iikhilomitha ezingama-40,000 ngeyure), malunga nesantya senqwelo-moya, kodwa olu lingelo lwakhokelela ekufumaneni okokuqala iziphithiphithi zehlabathi ezihamba phambi kobushushu. isantya seekhilomitha ezingama-25,000 ngeyure (iikhilomitha ezingama-XNUMX ngeyure). Isantya sesi siphithiphithi sisondele kweso serokhethi.
UNjingalwazi onguNjingalwazi uNaoki Kenmochi uthe, “Olu phando luqhubele phambili ngokumangalisayo ukuqonda kwethu isiphithiphithi kwi-fusion plasmas. Uphawu olutsha lwesiphithiphithi, oluhamba ngokukhawuleza kunobushushu kwiplasma, lubonisa ukuba sinokukwazi ukuqikelela utshintsho lobushushu kwiplasma ngokujonga isiphithiphithi esiqikelelwayo. Kwixesha elizayo, ngokusekwe koku, silindele ukuphuhlisa iindlela zokulawula ubushushu beplasma ngexesha lokwenyani. ”
Isalathiso: "Ukusasazwa kwangaphambili kwee-pulses zesiphithiphithi kwiziganeko ze-avalanche kwiplasma enemagnethi evalelweyo" nguN. Kenmochi, K. Ida, T. Tokuzawa, R. Yasuhara, H. Funaba, H. Uehara, DJ Den Hartog, I. Yamada, M. Yoshinuma, Y. Takemura kunye noH. Igami, 16 May 2022, Iingxelo zeSayensi.
INGXELO: 10.1038 / s41598-022-10499-z
