{"id":5459,"date":"2026-08-07T06:55:35","date_gmt":"2026-08-06T21:55:35","guid":{"rendered":"https:\/\/www.aem.imr.tohoku.ac.jp\/?p=5459"},"modified":"2026-08-07T06:55:35","modified_gmt":"2026-08-06T21:55:35","slug":"jem-2100plus%ef%bc%9a%e7%b5%90%e5%83%8f%e3%83%a2%e3%83%bc%e3%83%89%e9%81%b8%e6%8a%9e","status":"publish","type":"post","link":"https:\/\/www.aem.imr.tohoku.ac.jp\/en\/jem-2100plus%ef%bc%9a%e7%b5%90%e5%83%8f%e3%83%a2%e3%83%bc%e3%83%89%e9%81%b8%e6%8a%9e\/","title":{"rendered":"JEM-2100plus: Imaging Mode Selection"},"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

💡 This page is a quick manual for the JEM-2100plus.\nThe contents are subject to change.\nPlease receive training in advance before actually using the equipment.<\/p>\n\n\n

💡 Mode (Function) Change and Settings in TEM Mode\nSwitch the excitation of the first intermediate lens to select the image or diffraction pattern to display.<\/p>\n\n\n

Image Observation Mode (MAG)<\/h3>\n\n\n

💡 Imaging mode to display normal magnified images<\/strong>\n(x2000)x8000 ~ x600K\nx2000~6000 has a different lens configuration (objective mini lens on), so the axis is prone to misalignment<\/p>\n\n\n

    \n
  1. [PANEL-R : FUNCTION : MAG1(MAG2)] Mode change\n
      \n
    1. MAG1 memorizes the previously selected magnification. MAG2 recalls the preset value.<\/li>\n<\/ol>\n<\/li>\n\n\n\n
    2. Retract SA aperture (if necessary)<\/li>\n\n\n\n
    3. Probe selection (if necessary)\n
        \n
      1. [PANEL-L: PROBE CONTROL] Illumination mode: TEM<\/li>\n\n\n
      2. [PANEL-L: PROBE CONTROL : \u03b1SELECTOR] Normal: 2<\/li>\n\n\n
      3. [PANEL-L: PROBE CONTROL : SPOT SIZE] Normal: 2<\/li>\n<\/ol>\n<\/li>\n\n\n\n
      4. [PANEL-R: MAG\/CAM L] Magnification selection<\/li>\n\n\n\n
      5. [PANEL-L: BRIGHTNESS] Brightness adjustment<\/li>\n\n\n\n
      6. Focus\n
          \n
        1. [PANEL-R: STD FOCUS] Recall objective lens reference current<\/li>\n\n\n
        2. [PANEL-SC: \u25bd\u25b3] Specimen height adjustment (Z adjustment)<\/li>\n\n\n
        3. [PANEL-R: OBJ Focus] Objective lens focusing<\/li>\n<\/ol>\n<\/li>\n\n\n\n
        4. Search for field of view.\n
            \n
          1. When taking pictures, perform the following items each time.\n
              \n
            1. Setting shooting conditions<\/li>\n\n\n
            2. Astigmatism correction<\/li>\n\n\n
            3. Focusing<\/li>\n<\/ol>\n<\/li>\n<\/ol>\n<\/li>\n<\/ol>\n\n\n

              Diffraction Mode (DIFF)<\/h3>\n\n\n

              💡 Imaging mode to display electron diffraction patterns<\/strong>\nSelected Area Electron Diffraction (SAD)<\/strong> \/ Nano Beam Diffraction (NBD) \/ Convergent Beam Electron Diffraction (CBED)<\/p>\n\n\n

                \n
              1. In image observation mode, move the observation target to the center of the field of view.<\/li>\n\n\n\n
              2. Focusing (recommended)\n
                  \n
                1. Recall objective lens reference current<\/li>\n\n\n
                2. Specimen height adjustment (Z adjustment)<\/li>\n<\/ol>\n<\/li>\n\n\n\n
                3. Insert selected area aperture\n
                    \n
                  1. Select aperture diameter<\/li>\n\n\n
                  2. Aperture centering<\/li>\n<\/ol>\n<\/li>\n\n\n\n
                  3. Brightness adjustment\n
                      \n
                    1. Keep it as dark as possible. (Close to parallel beam)<\/li>\n<\/ol>\n<\/li>\n\n\n\n
                    2. [PANEL-R : FUNCTION : DIFF] Mode change\n
                        \n
                      1. The diffraction pattern is displayed.<\/li>\n<\/ol>\n<\/li>\n\n\n\n
                      2. Retract objective aperture (if inserted)<\/li>\n\n\n\n
                      3. Select camera length<\/li>\n\n\n\n
                      4. Diffraction pattern centering\n
                          \n
                        1. SPOT ALIGN<\/li>\n<\/ol>\n<\/li>\n\n\n\n
                        2. Focusing<\/li>\n<\/ol>\n\n\n

                          Very Low Magnification Mode (LOW MAG)<\/h3>\n\n\n

                          💡 Image observation mode at very low magnification\nx30 ~ x5000\nSince the objective lens is turned OFF, the influence of hysteresis is large.\nIf you want stable observation at high magnification, it is better not to use it.<\/strong><\/p>\n\n\n

                            \n
                          1. [PANEL-R : FUNCTION : LOW MAG] Mode change<\/li>\n\n\n\n
                          2. Retract SA aperture (if inserted)<\/li>\n\n\n\n
                          3. Retract objective aperture (if inserted)<\/li>\n\n\n\n
                          4. [PANEL-R: MAG\/CAM L] Magnification selection<\/li>\n\n\n\n
                          5. [PANEL-L: BRIGHTNESS] Brightness adjustment<\/li>\n\n\n\n
                          6. Adjust current axis<\/li>\n<\/ol>\n\n\n