{"id":521481,"date":"2018-09-13T12:19:56","date_gmt":"2018-09-13T16:19:56","guid":{"rendered":"https:\/\/ntrs.nasa.gov\/search.jsp?R=20180004490"},"modified":"2018-09-13T12:19:56","modified_gmt":"2018-09-13T16:19:56","slug":"design-and-on-orbit-operation-of-the-adiabatic-demagnetization-refrigerator-on-the-hitomi-soft-x-ray-spectrometer-instrument-stub","status":"publish","type":"post","link":"https:\/\/spaceweekly.com\/?p=521481","title":{"rendered":"Design and On-Orbit Operation of the Adiabatic Demagnetization Refrigerator on the Hitomi Soft X-Ray Spectrometer Instrument [STUB]"},"content":{"rendered":"<p>Abstract: The Soft X-ray Spectrometer instrument on the Astro-H observatory contains a 6&#215;6 array of x-ray microcalorimeters that is cooled to 50 mK by an adiabatic demagnetization refrigerator (ADR). The ADR consists of three stages in order to provide stable detector cooling using either a 1.2 K superfluid helium bath or a 4.5 K Joule-Thomson (JT) cryocooler as its heat sink. When liquid helium is present, two of the ADR&#8217;s stages are used to single-shot cool the detectors while rejecting heat to the h&#8230;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Abstract: The Soft X-ray Spectrometer instrument on the Astro-H observatory contains a 6&#215;6 array of x-ray microcalorimeters that is cooled to 50 mK by an adiabatic demagnetization refrigerator (ADR). The ADR consists of three stages in order to provide&#8230;<\/p>\n","protected":false},"author":60,"featured_media":615444,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[],"tags":[],"class_list":["post-521481","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry"],"_links":{"self":[{"href":"https:\/\/spaceweekly.com\/index.php?rest_route=\/wp\/v2\/posts\/521481","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/spaceweekly.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/spaceweekly.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=\/wp\/v2\/users\/60"}],"replies":[{"embeddable":true,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=521481"}],"version-history":[{"count":1,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=\/wp\/v2\/posts\/521481\/revisions"}],"predecessor-version":[{"id":521482,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=\/wp\/v2\/posts\/521481\/revisions\/521482"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=\/wp\/v2\/media\/615444"}],"wp:attachment":[{"href":"https:\/\/spaceweekly.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=521481"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=521481"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=521481"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}