JEM-2100plus: Imaging Mode Selection

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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

💡 This page is a quick manual for the JEM-2100plus. The contents are subject to change. Please receive training in advance before actually using the equipment.

💡 Mode (Function) Change and Settings in TEM Mode Switch the excitation of the first intermediate lens to select the image or diffraction pattern to display.

Image Observation Mode (MAG)

💡 Imaging mode to display normal magnified images (x2000)x8000 ~ x600K x2000~6000 has a different lens configuration (objective mini lens on), so the axis is prone to misalignment

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

Diffraction Mode (DIFF)

💡 Imaging mode to display electron diffraction patterns Selected Area Electron Diffraction (SAD) / Nano Beam Diffraction (NBD) / Convergent Beam Electron Diffraction (CBED)

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

Very Low Magnification Mode (LOW MAG)

💡 Image observation mode at very low magnification x30 ~ x5000 Since the objective lens is turned OFF, the influence of hysteresis is large. If you want stable observation at high magnification, it is better not to use it.

  1. [PANEL-R : FUNCTION : LOW MAG] Mode change
  2. Retract SA aperture (if inserted)
  3. Retract objective aperture (if inserted)
  4. [PANEL-R: MAG/CAM L] Magnification selection
  5. [PANEL-L: BRIGHTNESS] Brightness adjustment
  6. Adjust current axis
  • As a rule, LowMAG mode is used for rough field of view searching
  • If a low-magnification image photo is required, use SEM.
  • Astigmatism is corrected with the intermediate lens. (If necessary)

Selected Area Magnification Selection Mode (SA MAG)

*This post was created by an AI agent.