{"id":9569,"date":"2025-04-04T09:24:40","date_gmt":"2025-04-04T00:24:40","guid":{"rendered":"https:\/\/unit.nifs.ac.jp\/research\/?post_type=news&#038;p=9569"},"modified":"2025-04-04T09:30:08","modified_gmt":"2025-04-04T00:30:08","slug":"news-9569","status":"publish","type":"news","link":"https:\/\/unit.nifs.ac.jp\/research\/archives\/news\/news-9569","title":{"rendered":"\u7b2c16\u56de\u30d7\u30e9\u30ba\u30de\u91cf\u5b50\u30d7\u30ed\u30bb\u30b9\u30e6\u30cb\u30c3\u30c8\u30bb\u30df\u30ca\u30fc\u300cState-of-the-art x-ray microcalorimeter for studying QED effects in highly charged ions\u300d"},"content":{"rendered":"\n<p>\u6838\u878d\u5408\u79d1\u5b66\u7814\u7a76\u6240\uff08NIFS\uff09\u30d7\u30e9\u30ba\u30de\u91cf\u5b50\u30d7\u30ed\u30bb\u30b9\uff08PQP\uff09\u30e6\u30cb\u30c3\u30c8\u3067\u306f\u3001\u30e6\u30cb\u30c3\u30c8\u306e\u7814\u7a76\u6d3b\u52d5\u3092\u5e83\u304f\u767a\u4fe1\u3057\u3066\u3044\u304f\u305f\u3081\u306b\u3001\u30bb\u30df\u30ca\u30fc\u3092\u958b\u50ac\u3057\u3066\u304a\u308a\u307e\u3059\u3002\u4eca\u56de\u306f\u3001\u8b1b\u5e2b\u3068\u3057\u3066\u30af\u30ec\u30e0\u30be\u30f3\u5927\u5b66\u306e\u30a8\u30f3\u30c9\u30ec\u30fb\u30bf\u30ab\u30fc\u30c1\u5148\u751f\u3092\u304a\u62db\u304d\u3057\u300cState-of-the-art x-ray microcalorimeter for studying QED effects in highly charged ions\u300d\u3068\u984c\u3057\u3066\u3054\u8b1b\u6f14\u3044\u305f\u3060\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<div style=\"height:24px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p><span style=\"color:#0066cc\">\u3010\u5b9f\u65bd\u8981\u9805\u3011<\/span><\/p>\n\n\n\n<p>\u984c\u76ee\uff1aState-of-the-art x-ray microcalorimeter for studying QED effects in highly charged ions<\/p>\n\n\n\n<p>\u8b1b\u5e2b\uff1a\u30a8\u30f3\u30c9\u30ec\u30fb\u30bf\u30ab\u30fc\u30c1\uff08\u30af\u30ec\u30e0\u30be\u30f3\u5927\u5b66\u3001\u30a2\u30e1\u30ea\u30ab\u5408\u8846\u56fd\uff09\u3001NIFS\u30d7\u30e9\u30ba\u30de\u91cf\u5b50\u30d7\u30ed\u30bb\u30b9\u30e6\u30cb\u30c3\u30c8\u5ba2\u54e1\u6559\u6388\u3000<\/p>\n\n\n\n<p>\u65e5\u6642\uff1a2025\u5e744\u670810\u65e5 (\u6728)<\/p>\n\n\n\n<p>\u3000\u3000\u300014:00-15:00 \uff08\u30cf\u30a4\u30d6\u30ea\u30c3\u30c9\u958b\u50ac\uff09<\/p>\n\n\n\n<p>\u4f1a\u5834\uff1a\u6838\u878d\u5408\u79d1\u5b66\u7814\u7a76\u6240 \u7814\u7a76\uff11\u671f\u68df5\u968e501\u53f7\u5ba4 \u304a\u3088\u3073Zoom\uff08\u8981\u767b\u9332\uff09<\/p>\n\n\n\n<p>\uff0aZoom\u63a5\u7d9a\u60c5\u5831\u306f\u5225\u9014\u30e1\u30fc\u30eb\u306e\u6848\u5185\u306b\u8a18\u8f09<\/p>\n\n\n\n<div style=\"height:24px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p><span style=\"color:#0066cc\">\u3010\u6982\u8981\u3011<\/span><\/p>\n\n\n\n<p>Quantum electrodynamics (QED) is one of the most accurate theories of fundamental interactions, and its extraordinary precision provides unique opportunities for scientific discovery, such as the search for new physics. Consequently, stringent experimental tests of QED remain of high importance. Highly charged ions serve as an exceptional test bed due to their enhanced QED effects.<br>\u3000A Transition-Edge Sensor (TES) x-ray microcalorimeter array was recently commissioned at the Electron Beam Ion Trap (EBIT) at the National Institute of Standards and Technology (NIST) to study these effects. Over the past few decades, the NIST EBIT has produced numerous studies on highly charged ions across diverse fields such as atomic physics, plasma spectroscopy, and laboratory astrophysics. The x-ray microcalorimeter combines high x-ray collection efficiency with excellent resolving power, utilizing 192 individual pixels optimized for x-ray energies ranging from roughly 500 eV to 10,000 eV, achieving an energy resolution of 3.7 eV\u20135.0 eV over this range.<br>\u3000Recent measurements that leverage the capabilities of this state-of-the-art instrument will be reported. These include precise (to the ppm level) measurements of forbidden transitions in F-like ions, the observation of ladder ionization from Ni-like metastable levels, and the detection of prominent Ne-like transitions in heavy elements.<\/p>\n\n\n\n<div style=\"height:24px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p><span style=\"color:#0066cc\">\u3010\u9023\u7d61\u5148\u3011<\/span><\/p>\n\n\n\n<p>\u5742\u4e0a\u88d5\u4e4b\uff1asakaue.hiroyuki(at)nifs.ac.jp<\/p>\n\n\n\n<p>\u203b(at) \u3092\uff20\u306b\u76f4\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n","protected":false},"author":5,"featured_media":1505,"menu_order":0,"template":"","meta":{"_acf_changed":false,"footnotes":""},"ppma_author":[343],"class_list":["post-9569","news","type-news","status-publish","has-post-thumbnail","hentry"],"acf":[],"_links":{"self":[{"href":"https:\/\/unit.nifs.ac.jp\/research\/wp-json\/wp\/v2\/news\/9569","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/unit.nifs.ac.jp\/research\/wp-json\/wp\/v2\/news"}],"about":[{"href":"https:\/\/unit.nifs.ac.jp\/research\/wp-json\/wp\/v2\/types\/news"}],"author":[{"embeddable":true,"href":"https:\/\/unit.nifs.ac.jp\/research\/wp-json\/wp\/v2\/users\/5"}],"version-history":[{"count":9,"href":"https:\/\/unit.nifs.ac.jp\/research\/wp-json\/wp\/v2\/news\/9569\/revisions"}],"predecessor-version":[{"id":9584,"href":"https:\/\/unit.nifs.ac.jp\/research\/wp-json\/wp\/v2\/news\/9569\/revisions\/9584"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/unit.nifs.ac.jp\/research\/wp-json\/wp\/v2\/media\/1505"}],"wp:attachment":[{"href":"https:\/\/unit.nifs.ac.jp\/research\/wp-json\/wp\/v2\/media?parent=9569"}],"wp:term":[{"taxonomy":"author","embeddable":true,"href":"https:\/\/unit.nifs.ac.jp\/research\/wp-json\/wp\/v2\/ppma_author?post=9569"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}