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type="text/css"></style> <div id="ct" class="ct2 wp cl"> <div class="mn"> <div class="bm_haa cl"> <div class="bm_h cl"> <a href="http://www.oecr.com/portal.php?mod=rss&catid=57" class="y xi2 rss" target="_blank" title="RSS">订阅</a><h1 class="xs2">文章</h1> </div></div> <div class="kjkjb"> <div class="bm vw" style="margin-bottom:0;"> <div class="h hm"> <div class="zxtoux"><img src="http://www.oecr.com/uc_server/avatar.php?uid=54876&size=small" /></div> <h1 class="ph">新型等时性质谱术研发取得进展 </h1> <p class="xg1"> 时间：2026-4-16 09:31<a class="zz" href="home.php?mod=space&uid=54876">作者：update</a> 阅读<em id="_viewnum">(45)</em> 评论: <a href="http://www.oecr.com/portal.php?mod=comment&id=10490&idtype=aid" title="查看全部评论"><em id="_commentnum">5</em></a></p> <div class="zxfb" ><a href="http://www.oecr.com/portal.php?mod=rss&catid=57" class="y xi2 rss" target="_blank" title="RSS">订阅</a></div> </div> <!--[diy=diysummarytop]--><div id="diysummarytop" class="area"></div><!--[/diy]--> <div class="s"> <div class="ss"><div><span>导读： </span>原子核质量是研究核力性质、核结构演化、重元素起源以及极端同位旋条件下核素稳定性的关键物理量。基于储存环的等时性质谱术是测量短寿命原子核质量的重要实验手段。</div> </div> <!--[diy=diysummarybottom]--><div id="diysummarybottom" class="area"></div><!--[/diy]--> <div class="d"> <!--[diy=diycontenttop]--><div id="diycontenttop" class="area"></div><!--[/diy]--> <table cellpadding="0" cellspacing="0" class="vwtb"><tr><td id="article_content"><p style="margin-top: 0px; margin-right: 0px; margin-left: 0px; padding: 0px; border: 0px; list-style: none; font-size: 16px; font-family: 微软雅黑; color: rgb(68, 68, 68); background-color: rgb(255, 255, 255); text-indent: 2em; text-align: justify; margin-bottom: 26px !important; line-height: 32px !important;">原子核质量是研究核力性质、核结构演化、重元素起源以及极端同位旋条件下核素稳定性的关键<a href="http://theory.oecr.com" target="_blank" class="relatedlink">物理</a>量。基于储存环的等时性质谱术是<a href="http://opticaltest.oecr.com" target="_blank" class="relatedlink">测量</a>短寿命原子核质量的重要实验手段。</p><p style="margin-top: 0px; margin-right: 0px; margin-left: 0px; padding: 0px; border: 0px; list-style: none; font-size: 16px; font-family: 微软雅黑; color: rgb(68, 68, 68); background-color: rgb(255, 255, 255); text-indent: 2em; text-align: justify; margin-bottom: 26px !important; line-height: 32px !important;">近日，中国科学院近代物理研究所在基于储存环的新型等时性质谱术研发中取得进展，在每次注入参考原子核极少的情况下，可有效克服储存环磁场晃动带来的影响。</p><p style="margin-top: 0px; margin-right: 0px; margin-left: 0px; padding: 0px; border: 0px; list-style: none; font-size: 16px; font-family: 微软雅黑; color: rgb(68, 68, 68); background-color: rgb(255, 255, 255); text-indent: 2em; text-align: justify; margin-bottom: 26px !important; line-height: 32px !important;">为了克服传统等时性质谱术无法在宽时域范围内获得高精度质量的缺点，团队发展了新型等时性质谱术（Bρ-IMS），并显著降低了Bρ-IMS对每次注入参考核数目的要求。该方法本身对磁场晃动不敏感，不需要再进行额外的磁场修正。</p><p style="margin-top: 0px; margin-right: 0px; margin-left: 0px; padding: 0px; border: 0px; list-style: none; font-size: 16px; font-family: 微软雅黑; color: rgb(68, 68, 68); background-color: rgb(255, 255, 255); text-indent: 2em; text-align: justify; margin-bottom: 26px !important; line-height: 32px !important;">在已开展的针对极端远离稳定线原子核硅-22的质量测量实验中，团队成功利用该单参考核灵敏的Bρ-IMS方法，在不进行磁场修正的情况下，首次测量了硅-22原子核的质量，并将硅-23质量的精度提高了近7倍。</p><p style="margin-top: 0px; margin-right: 0px; margin-left: 0px; padding: 0px; border: 0px; list-style: none; font-size: 16px; font-family: 微软雅黑; color: rgb(68, 68, 68); background-color: rgb(255, 255, 255); text-indent: 2em; text-align: justify; margin-bottom: 26px !important; line-height: 32px !important;">该方法对于未来在强流重离子加速器装置（HIAF）的储存环SRing上开展极端远离稳定线、极低产额的原子核质量测量具有重要意义。</p><p style="margin-top: 0px; margin-right: 0px; margin-left: 0px; padding: 0px; border: 0px; list-style: none; font-size: 16px; font-family: 微软雅黑; color: rgb(68, 68, 68); background-color: rgb(255, 255, 255); text-indent: 2em; text-align: justify; margin-bottom: 26px !important; line-height: 32px !important;">相关研究成果发表在《核科学与技术》（<em style="margin-top: 0px; margin-right: 0px; margin-left: 0px; padding: 0px; border: 0px; margin-bottom: 26px !important; line-height: 32px !important;">Nuclear Science and Techniques</em>）上。研究工作得到国家自然科学基金、中国科学院青年创新促进会项目等的支持。</p><p style="text-align: center;"><a href="data/attachment/portal/202604/16/093043y99djkphnhytkzu7.png" target="_blank"><img src="data/attachment/portal/202604/16/093043y99djkphnhytkzu7.png"></a></p><p style="margin-top: 0px; margin-right: 0px; margin-left: 0px; padding: 0px; border: 0px; list-style: none; font-size: 16px; font-family: 微软雅黑; color: rgb(68, 68, 68); text-indent: 0em; background-color: rgb(255, 255, 255); text-align: center; margin-bottom: 26px !important; line-height: 32px !important;">新型等时性质谱术研发取得进展</p><p microsoft="" yahei",="" simsun;="" background-color:="" rgb(255,="" 255,="" 255);="" text-align:="" center;"="" 255);"="" center;="" style="word-wrap: normal; margin: 0px; padding: 0px; color: rgb(143, 143, 143); font-family: Tahoma, "Microsoft Yahei", Simsun; background-color: rgb(255, 255, 255); text-align: center;"><a 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xw0 xi2"> <a href="javascript:;" onclick="portal_comment_requote(36976, '10490');">引用</a> </span> <a href="http://club.oecr.com/space-uid-66022.html" class="xi2 xw1" c="1">wenjie1221</a> <span class="xg1 xw0">2026-4-16 11:01</span> </dt> <dd>呵呵，低调，低调！</dd> </dl><a name="comment_anchor_36975"></a> <dl id="comment_36975_li" class="ptm pbm bbda cl"> <dt class="mbm"> <span class="y xw0 xi2"> <a href="javascript:;" onclick="portal_comment_requote(36975, '10490');">引用</a> </span> <a href="http://club.oecr.com/space-uid-47207.html" class="xi2 xw1" c="1">zzz7239</a> <span class="xg1 xw0">2026-4-16 10:31</span> </dt> <dd>天天来看，还是留点啥再说。</dd> </dl><a name="comment_anchor_36974"></a> <dl id="comment_36974_li" class="ptm pbm bbda cl"> <dt class="mbm"> <span class="y xw0 xi2"> <a href="javascript:;" onclick="portal_comment_requote(36974, '10490');">引用</a> </span> <a href="http://club.oecr.com/space-uid-82173.html" class="xi2 xw1" c="1">littlesheep</a> <span class="xg1 xw0">2026-4-16 10:01</span> 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