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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=62" 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">揭示重元素原子和原子核结构的激光技术 </h1> <p class="xg1"> 时间：2017-2-28 09:15<a class="zz" href="home.php?mod=space&uid=54876">作者：update</a> 阅读<em id="_viewnum">(671)</em> 评论: <a href="http://www.oecr.com/portal.php?mod=comment&id=5426&idtype=aid" title="查看全部评论"><em id="_commentnum">5</em></a>来自: 实验帮</p> <div class="zxfb" ><a href="http://www.oecr.com/portal.php?mod=rss&catid=62" 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>利用一种非常敏感的技术，包括激光和气体射流使人们有可能第一次深入了解这些重元素的原子和其核的结构情况。</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"><div> 揭示重元素原子和原子核结构的<a href="http://laser.oecr.com" target="_blank" class="relatedlink">激光</a>技术！很多朋友们都知道门捷列夫的元素表中最重的放射性元素是鲜为人知的。但是，如今利用一种非常敏感的技术，包括激光和气体射流使人们有可能第一次深入了解这些重元素的原子和其核的结构情况。由鲁汶大学<a href="http://theory.oecr.com" target="_blank" class="relatedlink">物理</a>研究所核与辐射专业领导的一个国际研究小组在《自然通讯》杂志上报告了这一发现。请各位光学爱好者们一起看看下面的内容吧。</div><div><br></div><div><div style="line-height: 25.2px;"><span style="line-height: 25.2px;"> </span><font color="#808000" size="4" style="line-height: 25.2px;"><b>推荐阅读</b></font></div><div style="line-height: 25.2px;"> <font size="3"> <a href="http://www.oecr.com/article-5333.html"><font color="#800080"><b>解密！白色激光创造难度大的原因</b></font></a></font></div><div style="line-height: 25.2px;"><span style="line-height: 1.8em;"><font size="3"> <a href="http://www.oecr.com/article-5305.html"><font color="#800080"><b>创造世界新记录：科学家研制“超级激光”</b></font></a></font></span></div></div><div><br></div><div><p style="text-align: center;"><a href="data/attachment/portal/201702/28/091401dc4zqbphee3m3hth.jpg" target="_blank"><img src="data/attachment/portal/201702/28/091401dc4zqbphee3m3hth.jpg"></a></p></div><div><br></div><div> 在2016年科学家们在门捷列夫的周期表中增加了四个元素。这些重元素在地球上没有发现，只能使用强大的粒子加速器产生。<font color="#f00000"><b>“元素通常是在小批量生成，有时每年只有几个原子。这些原子也具有放射性，所以它们的衰变很快：有时它们只存在一小部分。这就是为什么这些元素的科学知识是非常有限的，”</b></font>来自鲁汶大学核与辐射物理研究所的核物理学家Mark Huyse和Piet Van Duppen说道。</div><div><br></div><div> 鲁汶大学研究人员现在希望通过激光电离技术的新应用改变这一现状。“我们生产的锕（AC），这个名字给的重锕系元素，在一系列的在比利时鲁汶使用粒子加速器实验中发现的这一元素。快速衰减的这一元素原子在充满氩气的气室中被俘虏，吸进了超音速喷气式飞机，并且使用激光束进行激发。通过这样做，我们使外层<a href="http://electronic.oecr.com" target="_blank" class="relatedlink">电子</a>在不同的轨道运行。第二束激光将电子发射出去。这种电离的原子，这意味着它成为带正电荷，现在就变得很容易操作和检测。激光的颜色就像元素的原子结构的指纹和原子核的结构一样。</div><div><br></div><div> 激光电离本身就是一个众所周知的技术，但它在超音速射流中的应用是新的，非常适合于重放射性元素：“通过电离原子，我们显着提高了这项技术的灵敏度。在实验过程中，每秒产生几个原子已经足够<a href="http://opticaltest.oecr.com" target="_blank" class="relatedlink">测量</a>了。该技术提高了激光电离的灵敏度，准确度和速度至少十倍。这标志着对最重元素的研究进入了一个全新的时代，使得对核物理<a href="http://theory.oecr.com" target="_blank" class="relatedlink">理论</a>模型的检验和修正成为可能。我们的方法将被用于在GANIL新粒子加速器，这是目前正在法国建设中的一个仪器。”</div><div><br></div><div> 以上就是为大家推荐的揭示重元素原子和原子核结构的激光技术，请喜欢的朋友们好好看看。</div><div><br></div><div><p style="text-align: center;"><a href="data/attachment/portal/201702/28/091537e5vju5nv3aujosys.jpg" target="_blank"><img src="data/attachment/portal/201702/28/091537e5vju5nv3aujosys.jpg"></a></p><p style="text-align: center;"><br></p><p style="text-align: center;"><span style="line-height: 25.2px;">欢迎关注光电<a href="http://news.oecr.com" target="_blank" class="relatedlink">资讯</a>微信公众号，每天将由光电工程师<a 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name="comment_anchor_11324"></a> <dl id="comment_11324_li" class="ptm pbm bbda cl"> <dt class="mbm"> <span class="y xw0 xi2"> <a href="javascript:;" onclick="portal_comment_requote(11324, '5426');">引用</a> </span> <a href="http://club.oecr.com/space-uid-70676.html" class="xi2 xw1" c="1">helixd</a> <span class="xg1 xw0">2017-2-28 18:10</span> </dt> <dd>这么强,支持，佩服</dd> </dl><a name="comment_anchor_11322"></a> <dl id="comment_11322_li" class="ptm pbm bbda cl"> <dt class="mbm"> <span class="y xw0 xi2"> <a href="javascript:;" onclick="portal_comment_requote(11322, '5426');">引用</a> </span> <a href="http://club.oecr.com/space-uid-24997.html" class="xi2 xw1" c="1">jaky</a> <span class="xg1 xw0">2017-2-28 17:10</span> </dt> <dd>顶下，挺好的。</dd> </dl><a name="comment_anchor_11318"></a> <dl id="comment_11318_li" class="ptm pbm bbda cl"> <dt class="mbm"> <span class="y xw0 xi2"> <a href="javascript:;" onclick="portal_comment_requote(11318, '5426');">引用</a> </span> <a href="http://club.oecr.com/space-uid-84108.html" class="xi2 xw1" c="1">sdtvcctv</a> <span class="xg1 xw0">2017-2-28 15:10</span> </dt> <dd>前排顶，很好！</dd> </dl><a name="comment_anchor_11316"></a> <dl id="comment_11316_li" class="ptm pbm bbda cl"> <dt class="mbm"> <span class="y xw0 xi2"> <a href="javascript:;" onclick="portal_comment_requote(11316, '5426');">引用</a> </span> <a href="http://club.oecr.com/space-uid-73130.html" class="xi2 xw1" c="1">yeahzyeahz</a> <span class="xg1 xw0">2017-2-28 14:10</span> </dt> <dd>顶顶更健康</dd> </dl><a name="comment_anchor_11314"></a> <dl id="comment_11314_li" class="ptm pbm bbda cl"> <dt class="mbm"> <span class="y xw0 xi2"> <a href="javascript:;" onclick="portal_comment_requote(11314, '5426');">引用</a> </span> <a href="http://club.oecr.com/space-uid-48034.html" class="xi2 xw1" c="1">龙井RENEE</a> <span class="xg1 xw0">2017-2-28 13:40</span> </dt> <dd>这个很有用处。</dd> </dl></div> </div> <!--[diy=diycontentcomment]--><div id="diycontentcomment" 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