{"id":7975,"date":"2023-08-15T20:49:11","date_gmt":"2023-08-15T20:49:11","guid":{"rendered":"https:\/\/www.istp.cnr.it\/?post_type=product&#038;p=7975"},"modified":"2023-08-15T20:49:11","modified_gmt":"2023-08-15T20:49:11","slug":"the-h-multiaperture-source-nio1-gas-conditioning-and-first-cesiations","status":"publish","type":"product","link":"https:\/\/www.istp.cnr.it\/it\/research-product\/the-h-multiaperture-source-nio1-gas-conditioning-and-first-cesiations\/","title":{"rendered":"The H- multiaperture source NIO1: gas conditioning and first cesiations"},"content":{"rendered":"<p>In NIO1, a compact H- ion source installed at RFX operated in continuous mode, gas conditioning was needed to improve results in Cs-free regimes (up to a current density about 25 or 30 A\/m2). Installation of a cesium oven gave an additional increase of current, progressively limited also by a rapid overcesiation: we observed an average density about 50 A\/m2 (with a peak of 67 A\/m2). Obtained beam optics is briefly compared with simulations and previous results in the Cs-free regime in similar conditions (as source voltage, often set below or equal 11 kV). In both regimes, central beamlet apparent density is larger, possibly because of a narrow bias plate mask, now enlarged. Further improvements for Cs-based regime include a moderate oven reservoir temperature, careful tuning and a substantial increase of beam voltage, and power handling capability.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Barbisan M.; Cavenago M.; Delogu R.S.; Pimazzoni A.; Poggi C.; Ugoletti M.; Variale V.; Antoni V.; Ravarotto D.; Serianni G.; Baltador C.; Franchin L.; Minarello A.; Martini D.; Maniero M.; Rizzieri R.; Romanato L.; Rossetto F.; Taccogna F.<\/p>\n","protected":false},"featured_media":1294,"comment_status":"closed","ping_status":"open","template":"","meta":[],"product_cat":[574],"product_tag":[1254,3530,3531,3532],"class_list":["post-7975","product","type-product","status-publish","has-post-thumbnail","hentry","product_cat-journal-articles","product_tag-nio1","product_tag-h-multiapeture","product_tag-gas-conditioning","product_tag-cesiations","prodpage-style2"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.istp.cnr.it\/it\/wp-json\/wp\/v2\/product\/7975","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.istp.cnr.it\/it\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/www.istp.cnr.it\/it\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/www.istp.cnr.it\/it\/wp-json\/wp\/v2\/comments?post=7975"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.istp.cnr.it\/it\/wp-json\/wp\/v2\/media\/1294"}],"wp:attachment":[{"href":"https:\/\/www.istp.cnr.it\/it\/wp-json\/wp\/v2\/media?parent=7975"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/www.istp.cnr.it\/it\/wp-json\/wp\/v2\/product_cat?post=7975"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/www.istp.cnr.it\/it\/wp-json\/wp\/v2\/product_tag?post=7975"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}