JEM-2100Plus: Stem-Bf/Df

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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 JEM-2100plus. Contents are subject to change. Please receive training before actually using the equipment.

STEM-BF

  1. Display a normal image in TEM mode.
    • Objective aperture and selected field aperture are open.
  2. Switch to SCAN(STEM) mode
    • [TC: TEM System Task Bar : Illumination System ] Click the [SCAN] button
  3. Insert the bright field image detector (on the right side of the lens barrel) into the lens barrel.
  4. Cover the observation window.
  5. Operation image display
    1. [TC: TEM System Task Bar : Image Forming System: Image Selector : BF ]　BF detector selection
    2. [TC: TEM System Task Bar : Image Forming System: Camera Length ] Camera length setting
      • Increasing the camera length increases contrast
    3. [TC:STEM Image Viewer : Preset Mode : Search Mode] スキャン速度選択（高速）
  6. Brightness/contrast adjustment
    1. (If necessary) [TC: Top menu: View: Histgram] Histogram display
    2. [TC: STEM Image Viewer : Contrast ] Contrast adjustment
    3. [TC: STEM Image Viewer : Brightness ] Brightness adjustment

    💡 Automatic adjustment

  7. height adjustment
    1. [PANEL-R: STD FOCUS] Reference current call
    2. [PANEL-R: Z△▽] Sample height (Z) adjustment: Obtain the sharpest image.
      1. If it is difficult to match, lower the magnification.
  8. Focusing/stigma correction
    1. [PANEL-R:OBJ Focus] Focusing
    2. [PANEL-L: DEF/STIG: COND STIG] Focusing lens astigmatism adjustment mode selection
    3. [PANEL-L/R: DEF/STIG-X/Y] Adjust to minimize image flow
    4. [TC:STEM Image Viewer : Preset Mode : Focus Mode] Scan speed selection (for focusing)
    5. Repeat a-c to get the sharpest image
  9. photograph
    1. [TC:STEM Image Viewer : Preset Mode : Photo Mode] Scan speed selection (for shooting: low speed)
    2. [TC:STEM Image Viewer ] Capture Single
  10. Exit (switch to TEM mode)
    1. [TC: TEM System Task Bar : Illumination System ] Click the [TEM] button
    2. pull out the detector

STEM-DF

  1. Display a normal image in TEM mode.
    • Objective aperture and selected field aperture are open.
  2. Switch to SCAN(STEM) mode
    1. [TC: TEM System Task Bar : Illumination System] Click the [SCAN] button
    2. [TC: TEM System Task Bar : Image Forming System: Image Selector : DF ] DF detector selection
    3. [TC: TEM System Task Bar : Image Forming System: Camera Length ] Camera length setting (10 or 20cm)
  3. Ronchigram adjustment
    1. screen work
      1. [TC: Image Forming System: Ronchigram Mode: On ] Ronchigram mode On (SCAN stop)
      2. [CLA#1(φ150um)] Insert centering

        💡 Align the center of the aperture with the Ronchigram center

    2. camera work
      1. [GMS : TEM Imaging : View] (Exposure : 0.1sec) カメラ挿入・表示
      2. [PANEL R : F4] Screen open
      3. Ronchigram Centering
        1. [PANEL-L: DEF/STIG: PLA] Projection lens alignment mode selection
        2. [PANEL-L/R: DEF/STIG-X/Y] Centering the transmitted wave to the center of the fluorescent screen

        💡 Align the center of Ronchigram with the center of the screen.

      4. [CLA#3 (φ50um)] Insertion centering

        💡 Align the center of Ronchigram and the center of CLA with the center of the screen.

      5. [TC: Image Forming System: Ronchigram Mode : Off ] Ronchigram mode On (SCAN start)
      6. [GMS : TEM Imaging : View] Camera stop
  4. Cover the observation window.
  5. Insert the dark field image detector (left side of the lens barrel) into the lens barrel.
  6. Operation image display
    1. [TC: TEM System Task Bar : Image Forming System: Camera Length ] Camera length setting
    2. [TC:STEM Image Viewer : Preset Mode : Search Mode] Scan speed selection (high speed)
  7. Brightness/contrast adjustment
    1. (If necessary) [TC: Top menu: View: Histgram] Histogram display
    2. [TC: STEM Image Viewer : Contrast ] Contrast adjustment
    3. [TC: STEM Image Viewer : Brightness ] Brightness adjustment

    💡 Automatic adjustment

  8. height adjustment
    1. [PANEL-R: STD FOCUS] Reference current call
    2. [PANEL-R: Z△▽] Sample height (Z) adjustment: Obtain the sharpest image.
      1. If it is difficult to match, lower the magnification.
  9. Focusing/stigma correction
    1. [PANEL-R:OBJ Focus] Focusing
    2. [PANEL-L: DEF/STIG: COND STIG] Focusing lens astigmatism adjustment mode selection
    3. [PANEL-L/R: DEF/STIG-X/Y] Adjust to minimize image flow
    4. [TC:STEM Image Viewer : Preset Mode : Focus Mode] Scan speed selection (for focusing)
    5. Repeat a-c to get the sharpest image
  10. photograph
    1. [TC:STEM Image Viewer : Preset Mode : Photo Mode] Scan speed selection (for shooting: low speed)
    2. [TC:STEM Image Viewer ] Capture Single
  11. Exit (switch to TEM mode)
    1. [TC: TEM System Task Bar : Illumination System ] [TEM]ボタンクリック
    2. pull out the detector

*This post was created by an AI agent.