{"id":1115,"date":"2022-03-04T09:04:38","date_gmt":"2022-03-04T14:04:38","guid":{"rendered":"https:\/\/www.berea.edu\/chm\/?p=1115"},"modified":"2022-03-04T15:11:56","modified_gmt":"2022-03-04T20:11:56","slug":"total-echo-pieta","status":"publish","type":"post","link":"https:\/\/legacy.berea.edu\/chm\/2022\/03\/04\/total-echo-pieta\/","title":{"rendered":"PIETA Perfection?"},"content":{"rendered":"
\"Density<\/a>

Density operator treatment of TE-PIETA<\/p><\/div>\n

\"TE-PIETA<\/a>

TE-PIETA pulse sequence and coherence pathways<\/p><\/div>\n

The total echo experiment (which refocuses both J-coupling and Chemical Shift interactions at the same time) allows the user to collect the zero time echo point which otherwise is impossible in a normal Hahn Echo\/CPMG\/PIETA experiment. When the user wishes to collect a whole echo with each refocus period, you need the TE-PIETA approach (or a comparable total echo approach). The four-dimensional\u00a0data is reduced by removing the 2 phase dimensions down to a two-dimensional dataset. An example of this reduced data is given in the following PDF<\/a>\u00a0file. Once the 2D FT is applied, we arrive at a dataset that correlates the isotropic chemical shift in the horizontal dimension with the J-coupling in the vertical dimension of this PDF<\/a>. Slices through the two types of sites (Q0 and Q1) are shown in this PDF<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"

The total echo experiment (which refocuses both J-coupling and Chemical Shift interactions at the same time) allows the user to collect the zero time echo point which otherwise is impossible in a normal Hahn Echo\/CPMG\/PIETA experiment. When the user wishes to collect a whole echo with each refocus period, you need the TE-PIETA approach (or […]<\/p>\n","protected":false},"author":81,"featured_media":1116,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[19],"tags":[],"class_list":["post-1115","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-nmr"],"acf":[],"yoast_head":"\nPIETA Perfection? - Chemistry Department<\/title>\n<meta name=\"robots\" content=\"noindex, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"PIETA Perfection? - Chemistry Department\" \/>\n<meta property=\"og:description\" content=\"The total echo experiment (which refocuses both J-coupling and Chemical Shift interactions at the same time) allows the user to collect the zero time echo point which otherwise is impossible in a normal Hahn Echo\/CPMG\/PIETA experiment. When the user wishes to collect a whole echo with each refocus period, you need the TE-PIETA approach (or […]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/legacy.berea.edu\/chm\/2022\/03\/04\/total-echo-pieta\/\" \/>\n<meta property=\"og:site_name\" content=\"Chemistry Department\" \/>\n<meta property=\"article:published_time\" content=\"2022-03-04T14:04:38+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2022-03-04T20:11:56+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/legacy.berea.edu\/chm\/wp-content\/uploads\/sites\/40\/2022\/03\/TE-PIETA_Fig.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1624\" \/>\n\t<meta property=\"og:image:height\" content=\"2048\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Jay Baltisberger\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Jay Baltisberger\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"2 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/legacy.berea.edu\\\/chm\\\/2022\\\/03\\\/04\\\/total-echo-pieta\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/legacy.berea.edu\\\/chm\\\/2022\\\/03\\\/04\\\/total-echo-pieta\\\/\"},\"author\":{\"name\":\"Jay Baltisberger\",\"@id\":\"https:\\\/\\\/legacy.berea.edu\\\/chm\\\/#\\\/schema\\\/person\\\/88a0cca28f7c80bbec82e1676b6e7eef\"},\"headline\":\"PIETA Perfection?\",\"datePublished\":\"2022-03-04T14:04:38+00:00\",\"dateModified\":\"2022-03-04T20:11:56+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/legacy.berea.edu\\\/chm\\\/2022\\\/03\\\/04\\\/total-echo-pieta\\\/\"},\"wordCount\":163,\"image\":{\"@id\":\"https:\\\/\\\/legacy.berea.edu\\\/chm\\\/2022\\\/03\\\/04\\\/total-echo-pieta\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/legacy.berea.edu\\\/chm\\\/wp-content\\\/uploads\\\/sites\\\/40\\\/2022\\\/03\\\/TE-PIETA_Fig.jpg\",\"articleSection\":[\"NMR\"],\"inLanguage\":\"en-US\"},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/legacy.berea.edu\\\/chm\\\/2022\\\/03\\\/04\\\/total-echo-pieta\\\/\",\"url\":\"https:\\\/\\\/legacy.berea.edu\\\/chm\\\/2022\\\/03\\\/04\\\/total-echo-pieta\\\/\",\"name\":\"PIETA Perfection? 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