{"id":284,"date":"2017-12-10T15:33:23","date_gmt":"2017-12-10T20:33:23","guid":{"rendered":"http:\/\/sites.williams.edu\/ion\/?p=284"},"modified":"2017-12-19T15:40:20","modified_gmt":"2017-12-19T20:40:20","slug":"mapping-stray-electric-fields","status":"publish","type":"post","link":"https:\/\/sites.williams.edu\/ion\/uncategorized\/mapping-stray-electric-fields\/","title":{"rendered":"Mapping Stray Electric Fields"},"content":{"rendered":"<p>Ions stored in a radio-frequency Paul trap such as ours can be perturbed by stray electric fields that result from patches of charge on the trap electrodes.\u00a0 Making the trap function at its best thus requires these fields be measured and that a compensation field be applied which cancels out any stray fields.\u00a0 Here we use the ion itself to probe its local field environment.<\/p>\n<div id=\"attachment_285\" style=\"width: 561px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-285\" class=\"wp-image-285 \" src=\"https:\/\/sites.williams.edu\/ion\/files\/2017\/12\/AxialScan_Graph-300x140.png\" alt=\"\" width=\"551\" height=\"257\" srcset=\"https:\/\/sites.williams.edu\/ion\/files\/2017\/12\/AxialScan_Graph-300x140.png 300w, https:\/\/sites.williams.edu\/ion\/files\/2017\/12\/AxialScan_Graph-768x359.png 768w, https:\/\/sites.williams.edu\/ion\/files\/2017\/12\/AxialScan_Graph-1024x479.png 1024w\" sizes=\"auto, (max-width: 551px) 100vw, 551px\" \/><p id=\"caption-attachment-285\" class=\"wp-caption-text\">Measured stray electric fields along the symmetry axis of the ion trap.<\/p><\/div>\n<div id=\"attachment_286\" style=\"width: 562px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-286\" class=\"wp-image-286 \" src=\"https:\/\/sites.williams.edu\/ion\/files\/2017\/12\/Ex_fields-300x175.png\" alt=\"\" width=\"552\" height=\"322\" srcset=\"https:\/\/sites.williams.edu\/ion\/files\/2017\/12\/Ex_fields-300x175.png 300w, https:\/\/sites.williams.edu\/ion\/files\/2017\/12\/Ex_fields-768x448.png 768w, https:\/\/sites.williams.edu\/ion\/files\/2017\/12\/Ex_fields-1024x597.png 1024w\" sizes=\"auto, (max-width: 552px) 100vw, 552px\" \/><p id=\"caption-attachment-286\" class=\"wp-caption-text\">Measured stray electric fields perpendicular to the trap&#8217;s symmetry axis, parallel to the plane of the trap itself.<\/p><\/div>\n","protected":false},"excerpt":{"rendered":"<p>Ions stored in a radio-frequency Paul trap such as ours can be perturbed by stray electric fields that result from patches of charge on the trap electrodes.\u00a0 Making the trap function at its best thus requires these fields be measured &hellip; <a href=\"https:\/\/sites.williams.edu\/ion\/uncategorized\/mapping-stray-electric-fields\/\">Continue reading <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":996,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[1],"tags":[],"class_list":["post-284","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"acf":[],"_links":{"self":[{"href":"https:\/\/sites.williams.edu\/ion\/wp-json\/wp\/v2\/posts\/284","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/sites.williams.edu\/ion\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/sites.williams.edu\/ion\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/sites.williams.edu\/ion\/wp-json\/wp\/v2\/users\/996"}],"replies":[{"embeddable":true,"href":"https:\/\/sites.williams.edu\/ion\/wp-json\/wp\/v2\/comments?post=284"}],"version-history":[{"count":2,"href":"https:\/\/sites.williams.edu\/ion\/wp-json\/wp\/v2\/posts\/284\/revisions"}],"predecessor-version":[{"id":288,"href":"https:\/\/sites.williams.edu\/ion\/wp-json\/wp\/v2\/posts\/284\/revisions\/288"}],"wp:attachment":[{"href":"https:\/\/sites.williams.edu\/ion\/wp-json\/wp\/v2\/media?parent=284"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/sites.williams.edu\/ion\/wp-json\/wp\/v2\/categories?post=284"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/sites.williams.edu\/ion\/wp-json\/wp\/v2\/tags?post=284"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}