{"id":282,"date":"2015-09-02T11:24:41","date_gmt":"2015-09-02T11:24:41","guid":{"rendered":"http:\/\/sites.cardiff.ac.uk\/xpsaccess\/?page_id=282"},"modified":"2016-01-04T12:59:40","modified_gmt":"2016-01-04T12:59:40","slug":"ion-scattering-spectroscopy-iss","status":"publish","type":"page","link":"http:\/\/sites.cardiff.ac.uk\/xpsaccess\/about\/ion-scattering-spectroscopy-iss\/","title":{"rendered":"Ion Scattering Spectroscopy (ISS)"},"content":{"rendered":"<p style=\"text-align: justify\">The Kratos Axis Ultra system is also equipped with facilities for\u00a0Ion Scattering Spectroscopy (ISS).<\/p>\n<p style=\"text-align: justify\">ISS is a technique where a beam of ions (typically He<sup>+<\/sup> or Ar<sup>+<\/sup>) is directed at the surface of interest and are scattered from the atoms in a surface. \u00a0As the ions lose kinetic energy, their resultant kinetic energy is measured and a spectrum is produced where peaks are observed at different kinetic energies related to the mass difference between the ion and the atom. Clearly\u00a0two atoms in a surface that have very different masses (e.g. oxygen and iron) will scatter ions differently.<\/p>\n<p style=\"text-align: justify\">ISS is extremely surface sensitive, with only the top-most atomic layer being probed. \u00a0Disdvantages of ISS are the extreme sensitivity to surface contamination layers and multiple elements may be difficult to resolve in a single spectrum<\/p>\n<table style=\"height: 223px\" width=\"835\">\n<tbody>\n<tr>\n<th>\n<h4 style=\"text-align: left\">\u00a0 \u00a0 How can ISS\u00a0help?<\/h4>\n<\/th>\n<th>\n<h4 style=\"text-align: left\">\u00a0 \u00a0Common applications?<\/h4>\n<\/th>\n<\/tr>\n<tr>\n<td>\n<ul>\n<li>Detection of top most surface elements<\/li>\n<\/ul>\n<\/td>\n<td>\n<ul>\n<li>Measurements of adsorbed species on single crystal surfaces<\/li>\n<\/ul>\n<\/td>\n<\/tr>\n<tr>\n<td>\n<ul>\n<li>Relative coverage determination of given elements<\/li>\n<\/ul>\n<\/td>\n<td>\n<ul>\n<li>Following layer growth in-situ in areas such as ALD and indication of monolayer coverage of a surface<\/li>\n<\/ul>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p style=\"text-align: justify\">\n","protected":false},"excerpt":{"rendered":"<p>The Kratos Axis Ultra system is also equipped with facilities for\u00a0Ion Scattering Spectroscopy (ISS). ISS is a technique where a beam of ions (typically He+ or Ar+) is directed at the surface of interest and are scattered from the atoms in a surface. \u00a0As the ions lose kinetic energy, their resultant kinetic energy is measured<\/p>\n","protected":false},"author":829,"featured_media":0,"parent":6,"menu_order":4,"comment_status":"closed","ping_status":"open","template":"","meta":{"footnotes":""},"class_list":["post-282","page","type-page","status-publish","hentry"],"meta_box":[],"_links":{"self":[{"href":"http:\/\/sites.cardiff.ac.uk\/xpsaccess\/wp-json\/wp\/v2\/pages\/282","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/sites.cardiff.ac.uk\/xpsaccess\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"http:\/\/sites.cardiff.ac.uk\/xpsaccess\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"http:\/\/sites.cardiff.ac.uk\/xpsaccess\/wp-json\/wp\/v2\/users\/829"}],"replies":[{"embeddable":true,"href":"http:\/\/sites.cardiff.ac.uk\/xpsaccess\/wp-json\/wp\/v2\/comments?post=282"}],"version-history":[{"count":7,"href":"http:\/\/sites.cardiff.ac.uk\/xpsaccess\/wp-json\/wp\/v2\/pages\/282\/revisions"}],"predecessor-version":[{"id":290,"href":"http:\/\/sites.cardiff.ac.uk\/xpsaccess\/wp-json\/wp\/v2\/pages\/282\/revisions\/290"}],"up":[{"embeddable":true,"href":"http:\/\/sites.cardiff.ac.uk\/xpsaccess\/wp-json\/wp\/v2\/pages\/6"}],"wp:attachment":[{"href":"http:\/\/sites.cardiff.ac.uk\/xpsaccess\/wp-json\/wp\/v2\/media?parent=282"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}