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jh@jinghe-rotomolding.com

Juyawa sanyaya na kwayoyin ion-electron karo karo da aka auna ta amfani da fasahar Laser

Lokacin da yake da 'yanci a cikin sararin sanyi, kwayoyin za su yi sanyi ba tare da bata lokaci ba ta hanyar rage jujjuyawar sa da kuma rasa kuzarin juyawa a cikin juzu'i. Masana kimiyya sun nuna cewa wannan tsarin sanyaya juyi na iya hanzarta, raguwa ko ma jujjuyawa ta hanyar karon kwayoyin halitta tare da abubuwan da ke kewaye da su. .googletag.cmd.push(aiki() {googletag.display('div-gpt-ad-1449240174198-2');});
Masu bincike a Cibiyar Max-Planck na Nuclear Physics a Jamus da Columbia Astrophysical Laboratory kwanan nan sun gudanar da wani gwaji da nufin auna ma'aunin sauye-sauyen ƙididdiga da ke haifar da karo tsakanin kwayoyin halitta da electrons. Sakamakon su, wanda aka buga a cikin Haruffa na Nazarin Jiki, ya ba da shaidar gwaji ta farko. na wannan rabo, wanda a baya an yi kiyasin a ka'ida kawai.
"Lokacin da electrons da kwayoyin ions suna cikin iskar gas mai rauni, mafi ƙanƙanta yawan adadin kwayoyin halitta na iya canzawa yayin karo," Ábel Kálosi, ɗaya daga cikin masu binciken da suka gudanar da binciken, ya gaya wa Phys.org. "Misalin wannan. tsari yana cikin gajimare masu tsaka-tsaki, inda bincike ya nuna cewa kwayoyin halitta galibi suna cikin mafi ƙanƙanta jihohinsu. Ƙaunar da ke tsakanin na'urorin lantarki masu cajin da ba su da kyau da kuma ingantaccen cajin ions na kwayoyin halitta yana sa tsarin karo na lantarki ya yi tasiri sosai."
Shekaru da yawa, masana kimiyyar lissafi suna ƙoƙarin tantance yadda ƙarfin lantarki na 'yanci ke hulɗa da ƙwayoyin cuta yayin karo kuma a ƙarshe suna canza yanayin jujjuyawarsu. Duk da haka, ya zuwa yanzu, ba a gwada hasashen su na ka'idar ba a cikin yanayin gwaji.
"Har yanzu, ba a yi wani ma'auni don sanin ingancin canjin matakan makamashi na jujjuyawa don yawan adadin lantarki da zafin jiki ba," in ji Kálosi.
Don tattara wannan ma'auni, Kálosi da abokan aikinsa sun kawo keɓantattun kwayoyin da aka caje su cikin kusanci da electrons a yanayin zafi a kusa da 25 Kelvin. Wannan ya ba su damar gwada zato da tsinkaya da aka bayyana a cikin ayyukan da suka gabata.
A cikin gwaje-gwajen da suka yi, masu binciken sun yi amfani da zobe na ajiya na cryogenic a Cibiyar Max-Planck don Nukiliya a Heidelberg, Jamus, wanda aka tsara don nau'in nau'in nau'in nau'in nau'in nau'in nau'in nau'in nau'in nau'in nau'i. an fi fitar da shi daga kowane iskar gas na baya.
"A cikin zobe na cryogenic, ions da aka adana za a iya sanyaya su zuwa zafin jiki na ganuwar zobe, samar da ions cike a ƙananan matakan ƙididdiga," in ji Kálosi. daya tilo da aka kera shi da kera na'urar lantarki ta musamman wanda za'a iya turawa zuwa ga mu'amala da ions. Ana adana ions na mintuna da yawa a cikin wannan zobe, ana amfani da Laser don yin tambayoyi game da jujjuyawar ions na kwayoyin halitta."
Ta hanyar zabar takamaiman tsayin igiyoyin gani don laser bincikenta, ƙungiyar za ta iya lalata ɗan ƙaramin juzu'in ion ɗin da aka adana idan matakan ƙarfin jujjuyawar su ya yi daidai da wannan tsayin. Daga nan suka gano gutsuttsuran ƙwayoyin da suka rushe don samun abin da ake kira sigina.
Tawagar ta tattara ma'aunin su a gaban da kuma rashin haɗarin lantarki. Wannan ya ba su damar gano canje-canje a cikin yawan jama'a a ƙarƙashin ƙananan yanayin zafi da aka saita a cikin gwaji.
"Don auna tsarin jujjuyawar rikice-rikice na jihar, ya zama dole a tabbatar da cewa akwai mafi ƙarancin ƙarfin juyi a cikin ion kwayoyin," in ji Kálosi. girma, ta yin amfani da sanyaya cryogenic zuwa yanayin zafi da ke ƙasa da zafin jiki, wanda galibi yana kusa da 300 Kelvin. A cikin wannan juzu'in, za a iya keɓance kwayoyin halitta daga ko'ina, infrared thermal radiation na muhallinmu."
A cikin gwaje-gwajen da suka yi, Kálosi da abokan aikinsa sun sami damar cimma yanayin gwaji wanda haɗin gwiwar lantarki ya mamaye sauye-sauye na radiyo.Ta hanyar amfani da isassun electrons, za su iya tattara ma'auni na ƙididdiga na electron collisions tare da CH+ kwayoyin ions.
"Mun gano cewa adadin canjin jujjuyawar da aka haifar da lantarki ya yi daidai da tsinkayar ka'idar da ta gabata," in ji Kálosi. Muna sa ran cewa kididdigar nan gaba za ta fi mai da hankali kan tasirin haɗarin lantarki a kan mafi ƙanƙanta matakin makamashi a cikin sanyi, keɓaɓɓen tsarin ƙididdigewa.
Baya ga tabbatar da tsinkayar ka'idar a cikin yanayin gwaji a karon farko, aikin kwanan nan na wannan rukunin masu bincike na iya samun mahimman abubuwan bincike.Misali, binciken da suka yi ya nuna cewa auna yawan canjin lantarki da ke haifar da canji a cikin matakan makamashi na ƙididdigewa zai iya zama. Mahimmanci yayin nazarin raunin siginar kwayoyin halitta a sararin samaniya da na'urorin hangen nesa na rediyo suka gano ko amsawar sinadarai a cikin siraran jini da sanyi.
A nan gaba, wannan takarda za ta iya ba da hanya don sababbin nazarin ka'idojin da za su yi la'akari sosai da tasirin haɗin gwiwar lantarki a kan aikin matakan makamashi na juyawa a cikin kwayoyin sanyi. yana yiwuwa a gudanar da ƙarin cikakken gwaje-gwaje a cikin filin.
"A cikin zoben ajiya na cryogenic, muna shirin gabatar da ƙarin fasahar laser iri-iri don bincika matakan makamashi na jujjuyawar nau'ikan nau'ikan kwayoyin diatomic da polyatomic," in ji Kálosi. . Za a ci gaba da samun ma'aunin dakin gwaje-gwaje na wannan nau'in, musamman a fannin nazarin sararin samaniya ta hanyar amfani da manyan abubuwan lura kamar Atacama Large Millimeter/Submillimeter Array a Chile. ”
Da fatan za a yi amfani da wannan fom idan kun haɗu da kurakuran rubutu, rashin daidaito, ko kuna son aika buƙatun gyara abubuwan da ke cikin wannan shafin. Don ƙarin bayani, da fatan za a yi amfani da hanyar tuntuɓar mu.Don ƙarin bayani, da fatan za a yi amfani da sashin sharhi na jama'a da ke ƙasa (da fatan za a bi. jagororin).
Ra'ayin ku yana da mahimmanci a gare mu. Duk da haka, saboda yawan saƙon, ba mu bada garantin amsa kowane mutum ba.
Adireshin imel ɗin ku ana amfani da shi kawai don sanar da masu karɓa wanda ya aiko da imel.Ba za a yi amfani da adireshinku ko adireshin mai karɓa don wata manufa ba. Bayanin da kuka shigar zai bayyana a cikin imel ɗin ku kuma Phys.org ba za ta riƙe shi ba a kowane lokaci. tsari.
Sami sabuntawa na mako-mako da/ko ana isar da ita zuwa akwatin saƙon saƙo na yau da kullun. Kuna iya cire rajista a kowane lokaci kuma ba za mu taɓa raba bayananku tare da wasu ba.
Wannan gidan yanar gizon yana amfani da kukis don taimakawa tare da kewayawa, bincika amfanin ku na ayyukanmu, tattara bayanai don keɓantawar talla, da kuma ba da abun ciki daga ɓangare na uku.Ta amfani da gidan yanar gizon mu, kun yarda cewa kun karanta kuma kun fahimci Manufar Sirrin mu da Sharuɗɗan Amfani.


Lokacin aikawa: Juni-28-2022