{"id":8265,"date":"2020-04-15T14:46:49","date_gmt":"2020-04-15T14:46:49","guid":{"rendered":"https:\/\/www.istp.cnr.it\/research-product\/crisp-a-compact-rf-ion-source-prototype-for-emittance-scanner-testing\/"},"modified":"2022-06-21T18:41:29","modified_gmt":"2022-06-21T18:41:29","slug":"crisp-a-compact-rf-ion-source-prototype-for-emittance-scanner-testing","status":"publish","type":"product","link":"https:\/\/www.istp.cnr.it\/it\/research-product\/crisp-a-compact-rf-ion-source-prototype-for-emittance-scanner-testing\/","title":{"rendered":"CRISP: A compact RF ion source prototype for emittance scanner testing"},"content":{"rendered":"<p>A movable Allison type emittance scanner is being developed to characterize the phase-space distribution of the beamlets of spectral phase interferometry for direct electric-field reconstruction, the prototype RF negative ion source of the ITER heating neutral beam injector. To test the electronics and verify the capability of the device to resolve nearby beamlets, a compact RF ion source prototype has been set up, capable of accelerating 1 mA of helium ions up to a voltage of 2 kV. A commercial 100 W RF generator creates a plasma inside a Pyrex tube, with a density between 1015 and 1016 m -3 and an electron temperature up to 15 eV. Three multi-aperture grids in accel-decel configuration extract and accelerate the ions, which are measured with a Faraday cup. We present in this paper the characterization of the ion source and its first operation, showing that it is suitable for the commissioning of the Allison scanner.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Poggi C.; Sartori E.; Zuin M.; Brombin M.; Cervaro V.; Fadone M.; Fassina A.; Fincato M.; Segalini B.; Serianni G.<\/p>\n","protected":false},"featured_media":1294,"comment_status":"closed","ping_status":"open","template":"","meta":[],"product_cat":[574],"product_tag":[1087,1411,1433,1441,1483,1484,1485,1486],"class_list":["post-8265","product","type-product","status-publish","has-post-thumbnail","hentry","product_cat-journal-articles","product_tag-negative-ions","product_tag-ion-sources","product_tag-electric-fields","product_tag-scanning","product_tag-electron-temperature","product_tag-nuclear-instrumentation","product_tag-phase-space-methods","product_tag-ultrafast-phenomena","prodpage-style2"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.istp.cnr.it\/it\/wp-json\/wp\/v2\/product\/8265","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=8265"}],"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=8265"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/www.istp.cnr.it\/it\/wp-json\/wp\/v2\/product_cat?post=8265"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/www.istp.cnr.it\/it\/wp-json\/wp\/v2\/product_tag?post=8265"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}