{"id":86,"date":"2017-02-10T08:20:57","date_gmt":"2017-02-10T07:20:57","guid":{"rendered":"http:\/\/wp.unil.ch\/ice\/?page_id=86"},"modified":"2020-02-02T12:52:42","modified_gmt":"2020-02-02T11:52:42","slug":"facilities","status":"publish","type":"page","link":"https:\/\/wp.unil.ch\/ice\/facilities\/","title":{"rendered":"Facilities"},"content":{"rendered":"<p><strong>Luminescence laboratory<\/strong><\/p>\n<p><img alt=\"\" loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-132 alignright\" src=\"https:\/\/wp.unil.ch\/ice\/files\/2017\/02\/Optically_stimulated_luminescence_1.jpg\" alt=\"\" width=\"200\" height=\"112\" \/>Optically stimulated luminescence is a versatile technique which can be used to determine the age of a depositional feature such as a glacial moraine and fluvial sediments (OSL dating), the erosion and\/or uplift rate of a mountain (OSL thermochronology) or exposure of rocks to light (OSL bedrock exposure dating). The OSL laboratory benefits from specialised rock preparation facilities including two Buehler isomet saws and a recently purchased diamond wire saw. The measurement laboratory is presently equipped with five Ris\u00f8 TL-DA-20 readers, three of which have DASH heads. Our instruments have advanced analytical facilities including time-resolved pulsed-OSL and photon-timer detection, dual infra-red and green laser single-grain dating, CCD imaging for spatially resolved luminescence detection, and an emission spectrometer for wavelength resolved emission detection. In the near future we will also acquire a Lexsyg Research instrument equipped for radiofluorescence measurements. Environmental dose rate measurements are made using an in-house HPGe gamma spectrometer. For field measurements we also have a portable gamma spectrometer and a SUERC portable OSL reader.<\/p>\n<p><strong>Electron Spin Resonance Laboratory<\/strong><\/p>\n<p>Electron spin resonance dating is another trapped-charge dating method which measures the concentration of trapped electrons directly, rather than via recombination as for luminescence methods. We recently installed a Magnettech MS5000X X-band bench-top ESR spectrometer, equipped with a liquid nitrogen cooling system. To ensure that we are able to follow the latest ESR measurement protocols, we have also purchased a Freiberg Instruments external X-ray irradiation system and external heating system, allowing us to make measurements on individual aliquots using a single-aliquot regenerative dose protocol.<\/p>\n<p><strong>Computing facilities<\/strong><\/p>\n<p>Our modeling activities are included within the <a href=\"https:\/\/wp.unil.ch\/geocomputing\/computing-systems\/\">geocomputing group activities<\/a>. The cluster park is currently composed of two clusters. The octopus GPU cluster is the flagship machine, composed of 136 Nvidia GeForce GTX Titan X accelerators.\u00a0The discovery cluster is a 3 nodes GPU\/MIC machine, and was designed to test different hardware accelerators and intra-node memory bandwidth optimization.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Luminescence laboratory Optically stimulated luminescence is a versatile technique which can be used to determine the age of a depositional feature such as a glacial moraine and fluvial sediments (OSL &hellip; <\/p>\n","protected":false},"author":1001291,"featured_media":0,"parent":0,"menu_order":6,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_seopress_robots_primary_cat":"","_seopress_titles_title":"","_seopress_titles_desc":"","_seopress_robots_index":"","footnotes":""},"class_list":["post-86","page","type-page","status-publish"],"_links":{"self":[{"href":"https:\/\/wp.unil.ch\/ice\/wp-json\/wp\/v2\/pages\/86","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/wp.unil.ch\/ice\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/wp.unil.ch\/ice\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/wp.unil.ch\/ice\/wp-json\/wp\/v2\/users\/1001291"}],"replies":[{"embeddable":true,"href":"https:\/\/wp.unil.ch\/ice\/wp-json\/wp\/v2\/comments?post=86"}],"version-history":[{"count":0,"href":"https:\/\/wp.unil.ch\/ice\/wp-json\/wp\/v2\/pages\/86\/revisions"}],"wp:attachment":[{"href":"https:\/\/wp.unil.ch\/ice\/wp-json\/wp\/v2\/media?parent=86"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}