{"id":2550,"date":"2023-03-10T21:14:50","date_gmt":"2023-03-10T18:14:50","guid":{"rendered":"https:\/\/baspik.com\/en\/?page_id=2550"},"modified":"2025-06-10T19:15:25","modified_gmt":"2025-06-10T16:15:25","slug":"six-channel-secondary-electron-multiplier","status":"publish","type":"page","link":"https:\/\/baspik.com\/en\/research-and-development\/six-channel-secondary-electron-multiplier\/","title":{"rendered":"Six-Channel Secondary Electron Multiplier"},"content":{"rendered":"\n

At present the main requirements for the development of advanced channel SEMs are the following: extended dynamic range, increased lifetime and compactness of the detector.<\/p>\n\n\n\n

The above requirements are achieved by using a helical design, which consists of six single channels that are twisted around a solid center. This results in effective six-fold increase of output surface area, which provides dynamic range extension and increased lifetime. Moreover, this design enables a compact, sophisticated detector with good heat dissipation and without the need for enclosure.<\/p>\n\n\n\n

Expected development time: 2024.<\/p>\n\n\n\n

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Estimated parameters<\/h4>\n\n\n\n
Operating voltage, V<\/td>1200-3000<\/td><\/tr>
Gain<\/td>5 x107 <\/sup>\u00f7 1 x108<\/sup>, at 3000 V<\/td><\/tr>
Dark current, A<\/td>< 1 x10-12<\/sup>, at 3000 V<\/td><\/tr>
Dark count rate, count\/sec<\/td>< 2, at 3000 V<\/td><\/tr>
Resistance<\/td>15 – 40 M\u03a9, at room temperature<\/td><\/tr>
Channel strip current, \u03bcA<\/td>75\u00f7200, at 3000 V<\/td><\/tr>
Average output current, \u03bcA<\/td><10% of channel strip current<\/td><\/tr>
Operating temperature range, \u00b0\u0421<\/td>-50 to +100<\/td><\/tr>
Maximum vacuum heating temperature, \u00b0C<\/td>350<\/td><\/tr>
Vacuum, mm Hg<\/td>1×10-5<\/sup><\/td><\/tr><\/tbody><\/table><\/figure>\n","protected":false},"excerpt":{"rendered":"

At present the main requirements for the development of advanced channel SEMs are the following: extended dynamic range, increased lifetime and compactness of the detector. The above requirements are achieved by using a helical design, which consists of six single channels that are twisted around a solid center. This results in effective six-fold increase of […]<\/p>\n","protected":false},"author":3,"featured_media":0,"parent":135,"menu_order":1,"comment_status":"closed","ping_status":"closed","template":"","meta":{"inline_featured_image":false,"footnotes":""},"tags":[42],"class_list":["post-2550","page","type-page","status-publish","hentry","tag-secondary-electron-multipliers"],"_links":{"self":[{"href":"https:\/\/baspik.com\/en\/wp-json\/wp\/v2\/pages\/2550","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/baspik.com\/en\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/baspik.com\/en\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/baspik.com\/en\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/baspik.com\/en\/wp-json\/wp\/v2\/comments?post=2550"}],"version-history":[{"count":1,"href":"https:\/\/baspik.com\/en\/wp-json\/wp\/v2\/pages\/2550\/revisions"}],"predecessor-version":[{"id":3137,"href":"https:\/\/baspik.com\/en\/wp-json\/wp\/v2\/pages\/2550\/revisions\/3137"}],"up":[{"embeddable":true,"href":"https:\/\/baspik.com\/en\/wp-json\/wp\/v2\/pages\/135"}],"wp:attachment":[{"href":"https:\/\/baspik.com\/en\/wp-json\/wp\/v2\/media?parent=2550"}],"wp:term":[{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/baspik.com\/en\/wp-json\/wp\/v2\/tags?post=2550"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}