{"id":485,"date":"2011-08-29T12:13:43","date_gmt":"2011-08-29T03:13:43","guid":{"rendered":"http:\/\/www.lookingatnothing.com\/?p=485"},"modified":"2012-06-08T12:16:41","modified_gmt":"2012-06-08T03:16:41","slug":"careful-when-using-molybdenum-radiation-sources","status":"publish","type":"post","link":"https:\/\/lookingatnothing.com\/index.php\/archives\/485","title":{"rendered":"Careful when using Molybdenum radiation sources"},"content":{"rendered":"<p>Just a quick heads-up. There&#8217;s a chance of 0.5% low-energy contamination when using molybdenum or silver radiation sources, even when using focusing devices, according to Macchi <em>et al <\/em>(<a href=\"http:\/\/dx.doi.org\/10.1107\/S0021889811016232\">doi:10.1107\/S0021889811016232<\/a>). While this is a low contamination level, it may have measurable effects in small-angle scattering of soft, low-absorption samples (simulations may follow soon).<\/p>\n<p>One way of significantly reducing this contamination is by introducing a filter of (~100 micron) aluminium foil, so it should be easy to test whether it affects your experiments or not.<\/p>\n","protected":false},"excerpt":{"rendered":"<div class=\"mh-excerpt\"><p>Just a quick heads-up. There&#8217;s a chance of 0.5% low-energy contamination when using molybdenum or silver radiation sources, even when using focusing devices, according to <a class=\"mh-excerpt-more\" href=\"https:\/\/lookingatnothing.com\/index.php\/archives\/485\" title=\"Careful when using Molybdenum radiation sources\">[&#8230;]<\/a><\/p>\n<\/div>","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"activitypub_content_warning":"","activitypub_content_visibility":"","activitypub_max_image_attachments":4,"activitypub_interaction_policy_quote":"anyone","activitypub_status":"","footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":false,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[1,52],"tags":[142,143,140,139,141],"class_list":["post-485","post","type-post","status-publish","format-standard","hentry","category-uncategorized","category-lit","tag-contamination","tag-data-collection","tag-generator","tag-molybdenum","tag-x-ray"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack_shortlink":"https:\/\/wp.me\/p1gZ2v-7P","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/lookingatnothing.com\/index.php\/wp-json\/wp\/v2\/posts\/485","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/lookingatnothing.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/lookingatnothing.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/lookingatnothing.com\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/lookingatnothing.com\/index.php\/wp-json\/wp\/v2\/comments?post=485"}],"version-history":[{"count":3,"href":"https:\/\/lookingatnothing.com\/index.php\/wp-json\/wp\/v2\/posts\/485\/revisions"}],"predecessor-version":[{"id":594,"href":"https:\/\/lookingatnothing.com\/index.php\/wp-json\/wp\/v2\/posts\/485\/revisions\/594"}],"wp:attachment":[{"href":"https:\/\/lookingatnothing.com\/index.php\/wp-json\/wp\/v2\/media?parent=485"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lookingatnothing.com\/index.php\/wp-json\/wp\/v2\/categories?post=485"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lookingatnothing.com\/index.php\/wp-json\/wp\/v2\/tags?post=485"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}