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Fabrication and Characterization of Optical Tissue Phantoms Containing Macrostructure
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Performance of plastic electron optics components fabricated using a 3D printer.

Phillip Wiebe1, Peter Beierle1, Hua-Chieh Shao1

  • 1Department of Physics and Astronomy, The University of Nebraska, Lincoln, Nebraska 68588-0299, United States.

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Researchers 3D-printed plastic electron optics for vacuum applications, successfully focusing electron beams. This breakthrough could lead to more accessible 3D-printed electron microscopes and advance electron beam science.

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Area of Science:

  • Materials Science
  • Physics
  • Engineering

Background:

  • Electron optics traditionally use materials like metal and glass.
  • Fabricating complex electron optical components can be challenging and expensive.
  • Integrating electron optical components into confined spaces requires specialized designs.

Purpose of the Study:

  • To demonstrate the feasibility of using 3D-printed plastics for electron optical components.
  • To investigate the performance of 3D-printed plastic lenses in vacuum environments.
  • To explore the potential for low-cost, customizable electron microscopes.

Main Methods:

  • Fabrication of an electron beam deflector, quadrupole lens, and einzel lens using a 3D printer with conducting and non-conducting plastics.
  • Testing the performance of these components in a vacuum environment.
  • Conducting simulations to predict potential performance improvements.

Main Results:

  • Successfully operated 3D-printed plastic electron optical devices in vacuum.
  • Demonstrated the ability to steer, stretch, and focus electron beams to millimeter diameters.
  • Simulations suggest potential for smaller focus spot sizes with improved surface quality.

Conclusions:

  • 3D-printed plastic electron optical components are viable for vacuum applications despite material challenges.
  • This technology offers a pathway to significantly reduce the cost of electron microscopes.
  • The development has broad implications for electron beam science, technology, and microscopy.