{"id":5477,"date":"2026-08-07T06:55:37","date_gmt":"2026-08-06T21:55:37","guid":{"rendered":"https:\/\/www.aem.imr.tohoku.ac.jp\/?p=5477"},"modified":"2026-08-07T06:55:37","modified_gmt":"2026-08-06T21:55:37","slug":"jem-2100plus-%e5%8a%a0%e9%80%9f%e9%9b%bb%e5%9c%a7%e8%a8%ad%e5%ae%9a","status":"publish","type":"post","link":"https:\/\/www.aem.imr.tohoku.ac.jp\/en\/jem-2100plus-%e5%8a%a0%e9%80%9f%e9%9b%bb%e5%9c%a7%e8%a8%ad%e5%ae%9a\/","title":{"rendered":"JEM-2100plus: Accelerating Voltage Configuration"},"content":{"rendered":"\n

Note: This page was translated by AI from the Japanese original. In case of any discrepancy, the Japanese version shall prevail.<\/em><\/p>\n\n\n\n

Original post date (Japanese version): June 22, 2024<\/em><\/p>\n\n\n\n

Step-up: 160kV (Standby) -> 200kV (Operation)<\/h3>\n\n\n
    \n
  1. Confirm that the accelerating voltage is in the standby state (160kV) and the dark current (Beam Current when the electron beam is stopped) is 80\u00b12uA.\n
      \n
    1. [TEM Center: Upper menu] Control \u2192 Beam\n
        \n
      • Display Beam Controller (for JEM Administrators)<\/li>\n<\/ul>\n<\/li>\n\n\n
      • Check HT Voltage \/ Current HT: (160kV)\n
          \n
        • If stopped, contact the administrator (Do not step up)<\/li>\n<\/ul>\n<\/li>\n\n\n
        • Check Filament \/ Beam Current HT: (80\u00b12uA)\n
            \n
          • If not stable, contact the administrator (Do not step up)<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n<\/li>\n\n\n\n
          • Step up slowly to avoid discharge\n
              \n
            1. [TEM Center: Upper menu] Application \u2192 HT Scheduling\n
                \n
              • Display HT Scheduling<\/li>\n<\/ul>\n<\/li>\n\n\n
              • Set the step-up conditions in Liner Step\n
                  \n
                • Step Volt = 0.1kV, Interval Time = 3s<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n<\/li>\n<\/ol>\n\n\n

                  Step-down: 200kV (Operation) -> 160kV (Standby)<\/h3>\n\n\n
                    \n
                  1. Set the accelerating voltage to 160kV (standby state)\n
                      \n
                    1. [TEM Center: Upper menu] Control \u2192 Beam\n
                        \n
                      • Display Beam Controller (for JEM Administrators)<\/li>\n<\/ul>\n<\/li>\n\n\n
                      • HT Voltage: Select [160]<\/li>\n\n\n
                      • Check Filament \/ Beam Current HT: (80\u00b12uA)\n
                          \n
                        • If not stable, contact the administrator<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n<\/li>\n<\/ol>\n\n\n\n

                          *This post was created by an AI agent.<\/em><\/p>\n","protected":false},"excerpt":{"rendered":"

                          Note: This page was translated by AI from the Japanese original. In case of any discrepancy, the Japanese version shall prevail. Original post date (Japanese version): June 22, 2024 Step-up: 160kV (Standby) -> 200kV (Operation) Step-down: 200kV (Operation) -> 160kV (Standby) *This post was created by an AI agent.<\/p>\n","protected":false},"author":11,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_locale":"en_US","_original_post":"https:\/\/www.aem.imr.tohoku.ac.jp\/?p=3192","footnotes":"","jetpack_post_was_ever_published":false},"categories":[1],"tags":[],"class_list":["post-5477","post","type-post","status-publish","format-standard","hentry","category-uncategorized","en-US"],"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/www.aem.imr.tohoku.ac.jp\/wp-json\/wp\/v2\/posts\/5477","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.aem.imr.tohoku.ac.jp\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.aem.imr.tohoku.ac.jp\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.aem.imr.tohoku.ac.jp\/wp-json\/wp\/v2\/users\/11"}],"replies":[{"embeddable":true,"href":"https:\/\/www.aem.imr.tohoku.ac.jp\/wp-json\/wp\/v2\/comments?post=5477"}],"version-history":[{"count":4,"href":"https:\/\/www.aem.imr.tohoku.ac.jp\/wp-json\/wp\/v2\/posts\/5477\/revisions"}],"predecessor-version":[{"id":5769,"href":"https:\/\/www.aem.imr.tohoku.ac.jp\/wp-json\/wp\/v2\/posts\/5477\/revisions\/5769"}],"wp:attachment":[{"href":"https:\/\/www.aem.imr.tohoku.ac.jp\/wp-json\/wp\/v2\/media?parent=5477"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.aem.imr.tohoku.ac.jp\/wp-json\/wp\/v2\/categories?post=5477"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.aem.imr.tohoku.ac.jp\/wp-json\/wp\/v2\/tags?post=5477"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}