{"id":5775,"date":"2012-07-26T13:12:12","date_gmt":"2012-07-26T17:12:12","guid":{"rendered":"http:\/\/galadriel.astro.utoronto.ca\/ballast\/?p=5775"},"modified":"2012-07-26T13:12:12","modified_gmt":"2012-07-26T17:12:12","slug":"crafts-and-cryostat-closing","status":"publish","type":"post","link":"http:\/\/droppingballast.com\/?p=5775","title":{"rendered":"Crafts and Cryostat Closing"},"content":{"rendered":"<p>Yesterday the cryostat was closed, with some modifications to help reduce microphonics. Preliminary signs (which are hard to determine while warm) are that things remain imperfect, but are quite possibly good enough.<\/p>\n<!-- Awesome Flickr Gallery Start --><!-- - Version - 3.5.6 - User ID - 27717602@N03 - Photoset ID - 72157630762630370 - Gallery ID -  - Group ID -  - Tags -  - Popular -  - Per Page - 100 - Sort Order - flickr - Photo Size - _m - Custom Size - 0 - Square - false - Captions - on - Description - on - Columns - 3 - Credit Note - off - Background Color - Transparent - Width - auto - Pagination - on - Slideshow - colorbox - Disable slideshow? - --><div class='afg-gallery custom-gallery-24' id='afg-24' style='background-color:Transparent; width:100%; color:; border-color:Transparent;'><div class='afg-table' style='width:100%'><div class='afg-row'><div class='afg-cell' style='width:33%;'><a class='afgcolorbox' rel='example424'  href='https:\/\/live.staticflickr.com\/8142\/7650926650_535789d445_b.jpg' title='Tyr's Christmas present to himself'><img class='afg-img' title='Tyr's Christmas present to himself' src='https:\/\/farm9.static.flickr.com\/8142\/7650926650_535789d445_m.jpg' alt='Tyr&#039;s Christmas present to himself \u2022 &lt;a style=&quot;font-size:0.8em;&quot; href=&quot;http:\/\/www.flickr.com\/photos\/27717602@N03\/7650926650\/&quot; target=&quot;_blank&quot;&gt;View on Flickr&lt;\/a&gt;'\/><\/a><div class='afg-title' style='font-size:1em'>Tyr&#039;s Christmas present to himself <\/div><div class='afg-description'>Skis, for use in Antarctica. He and Brad left us<\/div><\/div><div class='afg-cell' style='width:33%;'><a class='afgcolorbox' rel='example424'  href='https:\/\/live.staticflickr.com\/8028\/7650927114_f898a9e067_b.jpg' title='Barth'><img class='afg-img' title='Barth' src='https:\/\/farm9.static.flickr.com\/8028\/7650927114_f898a9e067_m.jpg' alt='Barth \u2022 &lt;a style=&quot;font-size:0.8em;&quot; href=&quot;http:\/\/www.flickr.com\/photos\/27717602@N03\/7650927114\/&quot; target=&quot;_blank&quot;&gt;View on Flickr&lt;\/a&gt;'\/><\/a><div class='afg-title' style='font-size:1em'>Barth <\/div><div class='afg-description'>And serial converters<\/div><\/div><div class='afg-cell' style='width:33%;'><a class='afgcolorbox' rel='example424'  href='https:\/\/live.staticflickr.com\/8421\/7650929102_b387675111_b.jpg' title='Elio performs arts and crafts'><img class='afg-img' title='Elio performs arts and crafts' src='https:\/\/farm9.static.flickr.com\/8421\/7650929102_b387675111_m.jpg' alt='Elio performs arts and crafts \u2022 &lt;a style=&quot;font-size:0.8em;&quot; href=&quot;http:\/\/www.flickr.com\/photos\/27717602@N03\/7650929102\/&quot; target=&quot;_blank&quot;&gt;View on Flickr&lt;\/a&gt;'\/><\/a><div class='afg-title' style='font-size:1em'>Elio performs arts and crafts <\/div><div class='afg-description'>In the JFET cavity<\/div><\/div><\/div><div class='afg-row'><div class='afg-cell' style='width:33%;'><a class='afgcolorbox' rel='example424'  href='https:\/\/live.staticflickr.com\/8285\/7650927622_611c29aa97_b.jpg' title='The JFET cavity'><img class='afg-img' title='The JFET cavity' src='https:\/\/farm9.static.flickr.com\/8285\/7650927622_611c29aa97_m.jpg' alt='The JFET cavity \u2022 &lt;a style=&quot;font-size:0.8em;&quot; href=&quot;http:\/\/www.flickr.com\/photos\/27717602@N03\/7650927622\/&quot; target=&quot;_blank&quot;&gt;View on Flickr&lt;\/a&gt;'\/><\/a><div class='afg-title' style='font-size:1em'>The JFET cavity <\/div><div class='afg-description'>After the arts and crafts work on the superinsulation layer<\/div><\/div><div class='afg-cell' style='width:33%;'><a class='afgcolorbox' rel='example424'  href='https:\/\/live.staticflickr.com\/8019\/7650928170_b9fa9bfdcf_b.jpg' title='Enzo's turn at arts and crafts'><img class='afg-img' title='Enzo's turn at arts and crafts' src='https:\/\/farm9.static.flickr.com\/8019\/7650928170_b9fa9bfdcf_m.jpg' alt='Enzo&#039;s turn at arts and crafts \u2022 &lt;a style=&quot;font-size:0.8em;&quot; href=&quot;http:\/\/www.flickr.com\/photos\/27717602@N03\/7650928170\/&quot; target=&quot;_blank&quot;&gt;View on Flickr&lt;\/a&gt;'\/><\/a><div class='afg-title' style='font-size:1em'>Enzo&#039;s turn at arts and crafts <\/div><div class='afg-description'><\/div><\/div><div class='afg-cell' style='width:33%;'><a class='afgcolorbox' rel='example424'  href='https:\/\/live.staticflickr.com\/7138\/7650928662_c502f76464_b.jpg' title='Eccosob layer'><img class='afg-img' title='Eccosob layer' src='https:\/\/farm8.static.flickr.com\/7138\/7650928662_c502f76464_m.jpg' alt='Eccosob layer \u2022 &lt;a style=&quot;font-size:0.8em;&quot; href=&quot;http:\/\/www.flickr.com\/photos\/27717602@N03\/7650928662\/&quot; target=&quot;_blank&quot;&gt;View on Flickr&lt;\/a&gt;'\/><\/a><div class='afg-title' style='font-size:1em'>Eccosob layer <\/div><div class='afg-description'>This seemed to really help with the noise<\/div><\/div><\/div><div class='afg-row'><div class='afg-cell' style='width:33%;'><a class='afgcolorbox' rel='example424'  href='https:\/\/live.staticflickr.com\/8425\/7650929488_51999ba263_b.jpg' title='The partially closed cavity'><img class='afg-img' title='The partially closed cavity' src='https:\/\/farm9.static.flickr.com\/8425\/7650929488_51999ba263_m.jpg' alt='The partially closed cavity \u2022 &lt;a style=&quot;font-size:0.8em;&quot; href=&quot;http:\/\/www.flickr.com\/photos\/27717602@N03\/7650929488\/&quot; target=&quot;_blank&quot;&gt;View on Flickr&lt;\/a&gt;'\/><\/a><div class='afg-title' style='font-size:1em'>The partially closed cavity <\/div><div class='afg-description'>With cables all reattached, and the intermediate lid in place<\/div><\/div><div class='afg-cell' style='width:33%;'><a class='afgcolorbox' rel='example424'  href='https:\/\/live.staticflickr.com\/8167\/7650930016_8436489a2f_b.jpg' title='Enzo inspects the half-wave plate'><img class='afg-img' title='Enzo inspects the half-wave plate' src='https:\/\/farm9.static.flickr.com\/8167\/7650930016_8436489a2f_m.jpg' alt='Enzo inspects the half-wave plate \u2022 &lt;a style=&quot;font-size:0.8em;&quot; href=&quot;http:\/\/www.flickr.com\/photos\/27717602@N03\/7650930016\/&quot; target=&quot;_blank&quot;&gt;View on Flickr&lt;\/a&gt;'\/><\/a><div class='afg-title' style='font-size:1em'>Enzo inspects the half-wave plate <\/div><div class='afg-description'><\/div><\/div><div class='afg-cell' style='width:33%;'><a class='afgcolorbox' rel='example424'  href='https:\/\/live.staticflickr.com\/8026\/7650930650_6e390a0a1a_b.jpg' title='Half-wave plate rotator'><img class='afg-img' title='Half-wave plate rotator' src='https:\/\/farm9.static.flickr.com\/8026\/7650930650_6e390a0a1a_m.jpg' alt='Half-wave plate rotator \u2022 &lt;a style=&quot;font-size:0.8em;&quot; href=&quot;http:\/\/www.flickr.com\/photos\/27717602@N03\/7650930650\/&quot; target=&quot;_blank&quot;&gt;View on Flickr&lt;\/a&gt;'\/><\/a><div class='afg-title' style='font-size:1em'>Half-wave plate rotator <\/div><div class='afg-description'>Getting an inspection<\/div><\/div><\/div><div class='afg-row'><div class='afg-cell' style='width:33%;'><a class='afgcolorbox' rel='example424'  href='https:\/\/live.staticflickr.com\/8281\/7650931238_d71ab1ba3b_b.jpg' title='JFET cavity closed'><img class='afg-img' title='JFET cavity closed' src='https:\/\/farm9.static.flickr.com\/8281\/7650931238_d71ab1ba3b_m.jpg' alt='JFET cavity closed \u2022 &lt;a style=&quot;font-size:0.8em;&quot; href=&quot;http:\/\/www.flickr.com\/photos\/27717602@N03\/7650931238\/&quot; target=&quot;_blank&quot;&gt;View on Flickr&lt;\/a&gt;'\/><\/a><div class='afg-title' style='font-size:1em'>JFET cavity closed <\/div><div class='afg-description'><\/div><\/div><div class='afg-cell' style='width:33%;'><a class='afgcolorbox' rel='example424'  href='https:\/\/live.staticflickr.com\/8164\/7650931784_5c4fd501a5_b.jpg' title='Fridge with optics box back in place'><img class='afg-img' title='Fridge with optics box back in place' src='https:\/\/farm9.static.flickr.com\/8164\/7650931784_5c4fd501a5_m.jpg' alt='Fridge with optics box back in place \u2022 &lt;a style=&quot;font-size:0.8em;&quot; href=&quot;http:\/\/www.flickr.com\/photos\/27717602@N03\/7650931784\/&quot; target=&quot;_blank&quot;&gt;View on Flickr&lt;\/a&gt;'\/><\/a><div class='afg-title' style='font-size:1em'>Fridge with optics box back in place <\/div><div class='afg-description'>Obligatory. Also, without the extra strapping from last cooldown<\/div><\/div><div class='afg-cell' style='width:33%;'><a class='afgcolorbox' rel='example424'  href='https:\/\/live.staticflickr.com\/8023\/7650932334_573c5a51ec_b.jpg' title='The BOB side'><img class='afg-img' title='The BOB side' src='https:\/\/farm9.static.flickr.com\/8023\/7650932334_573c5a51ec_m.jpg' alt='The BOB side \u2022 &lt;a style=&quot;font-size:0.8em;&quot; href=&quot;http:\/\/www.flickr.com\/photos\/27717602@N03\/7650932334\/&quot; target=&quot;_blank&quot;&gt;View on Flickr&lt;\/a&gt;'\/><\/a><div class='afg-title' style='font-size:1em'>The BOB side <\/div><div class='afg-description'><\/div><\/div><\/div><div class='afg-row'><div class='afg-cell' style='width:33%;'><a class='afgcolorbox' rel='example424'  href='https:\/\/live.staticflickr.com\/7113\/7650932832_e2e5642211_b.jpg' title='Heat strap and window'><img class='afg-img' title='Heat strap and window' src='https:\/\/farm8.static.flickr.com\/7113\/7650932832_e2e5642211_m.jpg' alt='Heat strap and window \u2022 &lt;a style=&quot;font-size:0.8em;&quot; href=&quot;http:\/\/www.flickr.com\/photos\/27717602@N03\/7650932832\/&quot; target=&quot;_blank&quot;&gt;View on Flickr&lt;\/a&gt;'\/><\/a><div class='afg-title' style='font-size:1em'>Heat strap and window <\/div><div class='afg-description'><\/div><\/div><div class='afg-cell' style='width:33%;'><a class='afgcolorbox' rel='example424'  href='https:\/\/live.staticflickr.com\/7262\/7650933298_10fe6a4f2e_b.jpg' title='Cleaning a superinsulation layer'><img class='afg-img' title='Cleaning a superinsulation layer' src='https:\/\/farm8.static.flickr.com\/7262\/7650933298_10fe6a4f2e_m.jpg' alt='Cleaning a superinsulation layer \u2022 &lt;a style=&quot;font-size:0.8em;&quot; href=&quot;http:\/\/www.flickr.com\/photos\/27717602@N03\/7650933298\/&quot; target=&quot;_blank&quot;&gt;View on Flickr&lt;\/a&gt;'\/><\/a><div class='afg-title' style='font-size:1em'>Cleaning a superinsulation layer <\/div><div class='afg-description'><\/div><\/div><div class='afg-cell' style='width:33%;'><a class='afgcolorbox' rel='example424'  href='https:\/\/live.staticflickr.com\/7248\/7650933990_a1e0095506_b.jpg' title='Taping the last layer closed'><img class='afg-img' title='Taping the last layer closed' src='https:\/\/farm8.static.flickr.com\/7248\/7650933990_a1e0095506_m.jpg' alt='Taping the last layer closed \u2022 &lt;a style=&quot;font-size:0.8em;&quot; href=&quot;http:\/\/www.flickr.com\/photos\/27717602@N03\/7650933990\/&quot; target=&quot;_blank&quot;&gt;View on Flickr&lt;\/a&gt;'\/><\/a><div class='afg-title' style='font-size:1em'>Taping the last layer closed <\/div><div class='afg-description'><\/div><\/div><\/div><div class='afg-row'><div class='afg-cell' style='width:33%;'><a class='afgcolorbox' rel='example424'  href='https:\/\/live.staticflickr.com\/8019\/7650934510_806b7939b6_b.jpg' title='Box label unrelated to cryostat'><img class='afg-img' title='Box label unrelated to cryostat' src='https:\/\/farm9.static.flickr.com\/8019\/7650934510_806b7939b6_m.jpg' alt='Box label unrelated to cryostat \u2022 &lt;a style=&quot;font-size:0.8em;&quot; href=&quot;http:\/\/www.flickr.com\/photos\/27717602@N03\/7650934510\/&quot; target=&quot;_blank&quot;&gt;View on Flickr&lt;\/a&gt;'\/><\/a><div class='afg-title' style='font-size:1em'>Box label unrelated to cryostat <\/div><div class='afg-description'>If M Truch ever officially designated a representative, I don't recall. I suppose none of us are allowed to modify the box without him... \ud83d\ude41<\/div><\/div><\/div><\/div><\/div><!-- Awesome Flickr Gallery End -->\n","protected":false},"excerpt":{"rendered":"<p>Yesterday the cryostat was closed, with some modifications to help reduce microphonics. Preliminary signs (which are hard to determine while warm) are that things remain imperfect, but are quite possibly good enough. [&#8230;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[9,14],"tags":[],"_links":{"self":[{"href":"http:\/\/droppingballast.com\/index.php?rest_route=\/wp\/v2\/posts\/5775"}],"collection":[{"href":"http:\/\/droppingballast.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/droppingballast.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/droppingballast.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/droppingballast.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=5775"}],"version-history":[{"count":3,"href":"http:\/\/droppingballast.com\/index.php?rest_route=\/wp\/v2\/posts\/5775\/revisions"}],"predecessor-version":[{"id":5779,"href":"http:\/\/droppingballast.com\/index.php?rest_route=\/wp\/v2\/posts\/5775\/revisions\/5779"}],"wp:attachment":[{"href":"http:\/\/droppingballast.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=5775"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/droppingballast.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=5775"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/droppingballast.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=5775"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}