{"id":1131,"date":"2014-06-30T16:04:46","date_gmt":"2014-06-30T23:04:46","guid":{"rendered":"https:\/\/depts.washington.edu\/chemwp\/chemwpnmr\/?p=1131"},"modified":"2014-06-30T16:06:37","modified_gmt":"2014-06-30T23:06:37","slug":"drx499-update-on-lineshape","status":"publish","type":"post","link":"https:\/\/depts.washington.edu\/chemwp\/chemwpnmr\/2014\/06\/drx499-update-on-lineshape\/","title":{"rendered":"DRX499 &#8211; UPDATE ON LINESHAPE"},"content":{"rendered":"<p>Users had noticed that the lineshape on this instrument has been rather poor.\u00a0 This is primarily due to the fact that the magnet is still taking its own time to settle down after the cryoshimming and B0 field adjustment approximately a month ago. Supercon Magnets are notoriously unpredictable when it comes to their expected duration before the main field and cryoshims are completely persistent.\u00a0 It is not uncommon for even new magnets to take upto 3 months to settle down. Especially with DRX499 magnet&#8217;s history this behaviour is not surprising.\u00a0 We will monitor the condition closely and keep up with re-shimming to provide you a usable shim set.\u00a0\u00a0 Attached below is the CHCl3 singlet from the lineshape standard, before and after the shimming operation. The curve in Red is with the starting shim distribution.\u00a0 The system is eminently usable as of now.\u00a0 Please do give your valuable feedback on noticeable changes.\u00a0 Thank you<\/p>\n<p><a href=\"https:\/\/depts.washington.edu\/chemwp\/chemwpnmr\/wp-content\/uploads\/2014\/06\/BBI_lineshape_aftershim.jpg\"><img decoding=\"async\" loading=\"lazy\" class=\"alignnone size-medium wp-image-1128\" src=\"https:\/\/depts.washington.edu\/chemwp\/chemwpnmr\/wp-content\/uploads\/2014\/06\/BBI_lineshape_aftershim-300x224.jpg\" alt=\"BBI_lineshape_aftershim\" width=\"300\" height=\"224\" srcset=\"https:\/\/depts.washington.edu\/chemwp\/chemwpnmr\/wp-content\/uploads\/2014\/06\/BBI_lineshape_aftershim-300x224.jpg 300w, https:\/\/depts.washington.edu\/chemwp\/chemwpnmr\/wp-content\/uploads\/2014\/06\/BBI_lineshape_aftershim.jpg 984w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Users had noticed that the lineshape on this instrument has been rather poor.\u00a0 This is primarily due to the fact that the magnet is still taking its own time to settle down after the cryoshimming and B0 field adjustment approximately a month ago. Supercon Magnets are notoriously unpredictable when it comes to their expected duration [&hellip;]<\/p>\n","protected":false},"author":19,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[1],"tags":[],"_links":{"self":[{"href":"https:\/\/depts.washington.edu\/chemwp\/chemwpnmr\/wp-json\/wp\/v2\/posts\/1131"}],"collection":[{"href":"https:\/\/depts.washington.edu\/chemwp\/chemwpnmr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/depts.washington.edu\/chemwp\/chemwpnmr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/depts.washington.edu\/chemwp\/chemwpnmr\/wp-json\/wp\/v2\/users\/19"}],"replies":[{"embeddable":true,"href":"https:\/\/depts.washington.edu\/chemwp\/chemwpnmr\/wp-json\/wp\/v2\/comments?post=1131"}],"version-history":[{"count":3,"href":"https:\/\/depts.washington.edu\/chemwp\/chemwpnmr\/wp-json\/wp\/v2\/posts\/1131\/revisions"}],"predecessor-version":[{"id":1134,"href":"https:\/\/depts.washington.edu\/chemwp\/chemwpnmr\/wp-json\/wp\/v2\/posts\/1131\/revisions\/1134"}],"wp:attachment":[{"href":"https:\/\/depts.washington.edu\/chemwp\/chemwpnmr\/wp-json\/wp\/v2\/media?parent=1131"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/depts.washington.edu\/chemwp\/chemwpnmr\/wp-json\/wp\/v2\/categories?post=1131"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/depts.washington.edu\/chemwp\/chemwpnmr\/wp-json\/wp\/v2\/tags?post=1131"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}