JEM-2100Plus: Screen

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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.

Observation window (large fluorescent screen)

  1. Remove the light-blocking lid.
  2. Observe with a fluorescent screen.
  3. [TC: TEM System Task Bar: Screen] Brightness check (if necessary)
    1. Beam current density on large fluorescent screen
  4. Attach the blackout lid.
    1. Always cover the container when handling liquid nitrogen.
      1. Preventing observation window glass from breaking
    2. Close the lid when using the CCD camera/STEM.
      1. Preventing noise from shooting data

Small fluorescent screen/binoculars

💡 If precise observation or focusing is required, binocular magnifiers and a small fluorescent screen can be used (magnification factor x10).

  1. Push down the small fluorescent plate lever on the right side of the lens barrel.
    1. A small fluorescent screen is inserted into the electron beam path.
  2. Move the binoculars in front of the fluorescent screen.
  3. Focus the binoculars on the small fluorescent screen.
    1. While looking through the binoculars, move the focusing knob to focus on the center point of the small fluorescent screen.
    2. If the left and right focal points are different, adjust by rotating the eyepiece.
  4. [TC: TEM System Task Bar: Screen] Brightness check (if necessary)
    1. Displays beam current density on small fluorescent screen

beam stopper

💡 Can be used to block transmitted waves in electron diffraction or as a landmark during image observation.

  1. Turn the beam stopper lever on the left side of the lens barrel.
    1. A beam stopper is inserted into the electron beam path.
    2. If necessary, turn the lever slightly to fine-tune the position.
  2. If the stopper movement is too large and fine adjustment is difficult, move the beam.

screen operation

💡 Open and close the large fluorescent screen when using a bottom mount camera (CCD camera).

  1. An enlarged image or electron diffraction pattern is displayed on a fluorescent screen.
  2. Lower the magnification and camera length.
    1. The field of view of the camera is narrower than that of the screen.
  3. Adjust brightness (darken)
    1. Lowering the magnification increases the current density and may damage the sensor.
  4. Insert beam stopper (if required)
  5. [PANEL R: F4] Raise the screen (90 degrees)
  6. [PANEL R: F4] Lower the screen (0 degrees)

💡 Can also be operated from the TEM center

*This post was created by an AI agent.