CERN'den konuya ili\u015fkin yap\u0131lan a\u00e7\u0131klamaya g\u00f6re, MIRACLS yakla\u015f\u0131m\u0131, s\u00fcper a\u011f\u0131r elementlerin zor anla\u015f\u0131l\u0131r elektron afinitelerinin \u00f6l\u00e7\u00fcm\u00fcne yol a\u00e7man\u0131n \u00f6tesinde, astatin gibi “kanser tedavisi” i\u00e7in kimyasal bile\u015fikler olu\u015fturmak i\u00e7in umut vaat eden bir aday olan aktinyum da dahil olmak \u00fczere, D\u00fcnya'daki nadir elementlere de uygulanabilir:<\/p>\n
“Ayr\u0131ca, molek\u00fcllerin elektron afinitelerini \u00f6l\u00e7mek i\u00e7in de kullan\u0131labilir ve bunlar\u0131n elektronik yap\u0131s\u0131n\u0131 tahmin eden teorik hesaplamalar i\u00e7in veri sa\u011flayabilir. Bu t\u00fcr hesaplamalar, do\u011fan\u0131n temel simetrileri hakk\u0131nda bilgi sa\u011flayan ve giderek daha fazla ilgi g\u00f6ren antimadde ve radyoaktif molek\u00fcllerin ara\u015ft\u0131r\u0131lmas\u0131 i\u00e7in gereklidir.”<\/p>\n
Bu tuzakta, klor anyonlar\u0131 iki elektrostatik ayna aras\u0131nda ping-pong topu gibi bir\u00e7ok kez ileri geri yans\u0131t\u0131l\u0131yor ve lazer \u0131\u015f\u0131n\u0131 her ge\u00e7i\u015fte anyonlar\u0131 inceler. Y\u00fcr\u00fct\u00fclen bu \u00e7al\u0131\u015fman\u0131n ba\u015f yazar\u0131 Franziska Maier, bu yeni ba\u015far\u0131y\u0131 \u015f\u00f6yle \u00f6zetledi:<\/p>\n
\u201cY\u00fcz bin kat daha az klor anyonu kullanmas\u0131na ra\u011fmen, yeni MIRACLS y\u00f6ntemimiz, anyonlar\u0131n lazer \u0131\u015f\u0131n\u0131 i\u00e7inden sadece bir kez ge\u00e7ti\u011fi geleneksel tekniklerle ayn\u0131 hassasiyette elektron afinitesini \u00f6l\u00e7er. Bizim deneyimizde ise anyonlar lazer \u0131\u015f\u0131n\u0131 i\u00e7inden yakla\u015f\u0131k altm\u0131\u015f bin kez ge\u00e7er. Yakla\u015f\u0131m\u0131m\u0131z temel olarak tuza\u011f\u0131n aynalar\u0131n\u0131 kullanarak anyonlar\u0131 \u2018geri d\u00f6n\u00fc\u015ft\u00fcr\u00fcr\u2019 ve s\u00fcper a\u011f\u0131r elementlerde elektron afinitesi \u00f6l\u00e7\u00fcmlerini sa\u011flayabildi.\u201d<\/p>\n
Ara\u015ft\u0131rmay\u0131 y\u00fcr\u00fcten bilim insanlar\u0131, odunun yanmas\u0131ndan ila\u00e7lar\u0131n etkisine kadar, maddenin \u00f6zellikleri ve davran\u0131\u015flar\u0131 kimyasal elementlerin birbirleriyle ba\u011flanma \u015fekliyle belirlendi\u011fine dikkat \u00e7ekerek, “Bilinen 118 elementin \u00e7o\u011funda, kimyasal ba\u011flanmadan sorumlu olan atomlar\u0131n karma\u015f\u0131k elektronik yap\u0131lar\u0131 iyi anla\u015f\u0131ld\u0131; ancak, periyodik tablonun en u\u00e7 noktas\u0131nda yer alan s\u00fcper a\u011f\u0131r elementler i\u00e7in, bu egzotik t\u00fcrlerin tek bir \u00f6zelli\u011fini bile \u00f6l\u00e7mek b\u00fcy\u00fck bir zorluktur” dediler.<\/p>\n
Nature Communications dergisinde yay\u0131nlanan yeni bir makalede, CERN'deki ISOLDE tesisinde \u00e7al\u0131\u015fan bir ara\u015ft\u0131rma ekibi, (s\u00fcper) a\u011f\u0131r elementlerin kimyas\u0131n\u0131 \u00e7\u00f6zmeye yard\u0131mc\u0131 olabilecek ve temel fizik ara\u015ft\u0131rmalar\u0131 ve t\u0131bbi tedavilerde potansiyel uygulamalar\u0131 olan yeni bir teknik hakk\u0131nda bilgi veriyorlar.<\/p>\n
S\u00fcper a\u011f\u0131r elementlerin “olduk\u00e7a karars\u0131z” olduklar\u0131 i\u00e7in yaln\u0131zca h\u0131zland\u0131r\u0131c\u0131 laboratuvarlar\u0131nda \u00e7ok az miktarlarda \u00fcretilebildi\u011fine dikkat \u00e7eken ara\u015ft\u0131rmac\u0131lar, “Bu nedenle ara\u015ft\u0131rmac\u0131lar, \u00f6nce kararl\u0131 ve daha hafif elementler \u00fczerinde tekniklerini m\u00fckemmelle\u015ftirme e\u011filimindedir” dediler.<\/p>\n
CERN'in ISOLDE ekibi, klorun elektron afinitesini hassas bir \u015fekilde \u00f6l\u00e7mek i\u00e7in iyon yakalama temelli yeni bir y\u00f6ntem geli\u015ftirdi. Bu y\u00f6ntem, \u00f6nceki deneylerden \u00e7ok daha az atom kullan\u0131yor ve b\u00f6ylece s\u00fcper a\u011f\u0131r elementlerde bu \u00f6zelli\u011fin \u00f6l\u00e7\u00fclmesinin \u00f6n\u00fcn\u00fc a\u00e7\u0131yor.\u00a0<\/p>\n
\u00c7al\u0131\u015fman\u0131n ikinci ba\u015f yazar\u0131 Erich Leistenschneider, s\u00fcper a\u011f\u0131r elementlerin \u00f6zelliklerinin periyodik tablonun s\u0131n\u0131rlar\u0131n\u0131 bulan\u0131kla\u015ft\u0131rabilece\u011fine de dikkat \u00e7ekti:<\/p>\n
“Proton say\u0131s\u0131 artt\u0131k\u00e7a, Einstein'\u0131n g\u00f6relilik teorisi atomlar\u0131n yap\u0131s\u0131n\u0131 kar\u0131\u015ft\u0131r\u0131r. Bu nedenle, periyodik tablodaki element gruplar\u0131 aras\u0131ndaki s\u0131n\u0131rlar\u0131n kaybolabilece\u011fi ve s\u00fcper a\u011f\u0131r elementlerin kimyas\u0131n\u0131n \u2018normal\u2019 periyodik e\u011filimlerden sapabilece\u011fi tahmin edilebilir. Elektron afinitesi, bu etkilerden b\u00fcy\u00fck \u00f6l\u00e7\u00fcde etkilenecek \u00f6zelliklerden biridir ve \u00f6l\u00e7\u00fcmlerimiz bunlar\u0131 ara\u015ft\u0131racakt\u0131r.”
\n\u00a0<\/p>\n
<\/strong> \u0130stanbul, 4 Kas\u0131m (Hibya) – Avrupa N\u00fckleer Ara\u015ft\u0131rma Merkezi’nin (Conseil Europ\u00e9en pour la Recherche Nucl\u00e9aire – CERN) Radyoaktif \u0130yon I\u015f\u0131n\u0131 Tesisi’ndeki (ISOLDE) bilim insanlar\u0131, \u00e7oklu iyon yans\u0131ma aparat\u0131nda (MIRACLS) klor anyonlar\u0131n\u0131 hapsetmeyi ba\u015fard\u0131. <\/p>\n","protected":false},"author":1,"featured_media":4973,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"googlesitekit_rrm_CAow07ekDA:productID":"","footnotes":""},"categories":[4,13],"tags":[],"class_list":["post-4972","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-dunya","category-teknoloji"],"_links":{"self":[{"href":"https:\/\/ekonomigundemi.com.tr\/index.php\/wp-json\/wp\/v2\/posts\/4972","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ekonomigundemi.com.tr\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ekonomigundemi.com.tr\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ekonomigundemi.com.tr\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/ekonomigundemi.com.tr\/index.php\/wp-json\/wp\/v2\/comments?post=4972"}],"version-history":[{"count":0,"href":"https:\/\/ekonomigundemi.com.tr\/index.php\/wp-json\/wp\/v2\/posts\/4972\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/ekonomigundemi.com.tr\/index.php\/wp-json\/wp\/v2\/media\/4973"}],"wp:attachment":[{"href":"https:\/\/ekonomigundemi.com.tr\/index.php\/wp-json\/wp\/v2\/media?parent=4972"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ekonomigundemi.com.tr\/index.php\/wp-json\/wp\/v2\/categories?post=4972"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ekonomigundemi.com.tr\/index.php\/wp-json\/wp\/v2\/tags?post=4972"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
\nSANAY\u0130 HABER AJANSI <\/p>\n","protected":false},"excerpt":{"rendered":"