{"id":234,"date":"2019-02-11T12:33:59","date_gmt":"2019-02-11T11:33:59","guid":{"rendered":"http:\/\/larixfacility.unife.it\/?page_id=234"},"modified":"2023-07-28T10:21:39","modified_gmt":"2023-07-28T08:21:39","slug":"laue-trill","status":"publish","type":"page","link":"https:\/\/larixfacility.unife.it\/?page_id=234","title":{"rendered":"LAUE &#8211; TRILL"},"content":{"rendered":"\n<p align=\"justify\">The <strong>Technological Readiness increase for Laue Lens (TRILL)<\/strong> is a project supported by INAF and ASI for the advancement of the technology of Laue lenses for space applications. A <b>Laue lens<\/b> is an hard X\/soft Gamma-ray optics based on Bragg&#8217;s law of diffraction in transmission configuration. In its simplest design, it consist in a spherical cap covered in crystal tiles properly oriented to concentrate the radiation impingin on the lens in a focal point. <\/p>\n\n\n\n<p style=\"text-align:center;\">\n<img decoding=\"async\" src=\"https:\/\/larixfacility.unife.it\/wp-content\/uploads\/2023\/07\/lens_schematic-1-2.png\" alt=\"\" class=\"wp-image-412\" width=\"60%\" heigth=\"60%\">\n<img decoding=\"async\" src=\"https:\/\/larixfacility.unife.it\/wp-content\/uploads\/2023\/07\/NFT.png\" alt=\"\" class=\"wp-image-412\" width=\"30%\" heigth=\"30%\">\n<\/p>\n\n\n\n<p align=\"justify\">The main objective of the TRILL project is to develop a repeatable and reliable way to build a section of a Laue lens made by bent Silicon and Germanium crystals. The use of bent crystals constitute a significative upgrade with respect to the previous HAXTEL project, since bent crystals posses radiation concentration capabilities, thus allowing us to build Laue lenses with long focal length and a relatively small Point Spread Function (PSF). For our assembly, we opted for a modular approach: the full Laue lens is divided in a series of circular sectors and each sector is divided into smaller sections (<em>\u201cmodules\u201d<\/em>).<\/p>\n\n\n\n<p style=\"text-align:center;\">\n<img decoding=\"async\" src=\"https:\/\/larixfacility.unife.it\/wp-content\/uploads\/2023\/07\/LensCup.jpg\" alt=\"\" class=\"wp-image-412\" width=\"30%\" heigth=\"30%\">\n<img decoding=\"async\" src=\"https:\/\/larixfacility.unife.it\/wp-content\/uploads\/2020\/07\/Collimator_V11_img4.png\" alt=\"\" class=\"wp-image-412\" width=\"50%\" heigth=\"50%\">\n<\/p>\n\n\n\n<p align=\"justify\">At the <strong><a href=\"https:\/\/larixfacility.fe.infn.it\/larix-tunnel\/\">LARIX-Tunnel<\/a><\/strong> facility, we are working on bonding crystals bent to a curvature radius of 40 m to an adequate substrate. At the moment, we are using an UV-curable, space qualified glue and a clear quartz substrate.&nbsp; The bonding process is done by exploiting the high accuracy hexapod available at LARIX-Tunnel and is performed under the control of the X-ray beam to increase the assembly accuracy of the system as much as possible.<\/p>\n\n\n\n<p style=\"text-align:center;\">\n<img decoding=\"async\" src=\"https:\/\/larixfacility.unife.it\/wp-content\/uploads\/2019\/02\/Larix_tunnel_Facility1-1024x586.jpg\" alt=\"\" class=\"wp-image-412\" width=\"30%\" heigth=\"30%\">\n<img decoding=\"async\" src=\"https:\/\/larixfacility.unife.it\/wp-content\/uploads\/2023\/07\/substrate.jpg\" alt=\"\" class=\"wp-image-412\" width=\"32%\" heigth=\"32%\">\n<img decoding=\"async\" src=\"https:\/\/larixfacility.unife.it\/wp-content\/uploads\/2023\/07\/xtals.jpg\" alt=\"\" class=\"wp-image-412\" width=\"19%\" heigth=\"19%\">\n<\/p>\n<figcaption> <p style=\"font-size:13px;color:#454545;text-align:center;\"><em>Left:<\/em>CAD of the assembly set-up at the LARIX-Tunnel facility. <em>Center:<\/em> quartz substrate on which the crystals are bonded. <em>Right:<\/em> Germanium crystals<\/p> <\/figcaption>\n\n\n\n<p align=\"justify\"> At the moment, we were able to reach an average<strong> assembly accuracy <\/strong>of the Bragg\u2019s angle of about<strong> 100 arcsec<\/strong>. We are currently working on further increasing the assembly accuracy and to define a technique to join together and orient the different modules of the full lens.<\/p>\n\n\n\n<p style=\"text-align:center;\">\n<img decoding=\"async\" src=\"https:\/\/larixfacility.unife.it\/wp-content\/uploads\/2023\/07\/glued_xtals_nocol-1.jpg\" alt=\"\" class=\"wp-image-412\" width=\"40%\" heigth=\"40%\">\n<img decoding=\"async\" src=\"https:\/\/larixfacility.unife.it\/wp-content\/uploads\/2023\/07\/full_xtal_18_10_2021.jpg\" alt=\"\" class=\"wp-image-412\" width=\"30%\" heigth=\"30%\">\n<\/p>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>The Technological Readiness increase for Laue Lens (TRILL) is a project supported by INAF and ASI for the advancement of the technology of Laue lenses for space applications. A Laue&hellip;<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"page-templates\/fullwidth.php","meta":{"footnotes":""},"class_list":["post-234","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/larixfacility.unife.it\/index.php?rest_route=\/wp\/v2\/pages\/234","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/larixfacility.unife.it\/index.php?rest_route=\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/larixfacility.unife.it\/index.php?rest_route=\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/larixfacility.unife.it\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/larixfacility.unife.it\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=234"}],"version-history":[{"count":9,"href":"https:\/\/larixfacility.unife.it\/index.php?rest_route=\/wp\/v2\/pages\/234\/revisions"}],"predecessor-version":[{"id":1209,"href":"https:\/\/larixfacility.unife.it\/index.php?rest_route=\/wp\/v2\/pages\/234\/revisions\/1209"}],"wp:attachment":[{"href":"https:\/\/larixfacility.unife.it\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=234"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}