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Development progress of the Materials Analysis and Particle Probe.

M Lucia1, R Kaita1, R Majeski1

  • 1Princeton Plasma Physics Laboratory (PPPL), Princeton, New Jersey 08543, USA.

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Summary
This summary is machine-generated.

The Materials Analysis and Particle Probe (MAPP) is a new diagnostic tool for tokamaks. It offers in situ surface characterization of plasma-facing components using multiple advanced spectroscopy techniques.

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Area of Science:

  • Plasma Physics and Materials Science
  • Surface Science and Spectroscopy
  • Tokamak Diagnostics

Background:

  • Tokamak fusion devices require in situ surface characterization of plasma-facing components.
  • Existing diagnostic tools may have limitations in comprehensive surface analysis within the tokamak environment.

Purpose of the Study:

  • To introduce and detail the Materials Analysis and Particle Probe (MAPP) diagnostic system.
  • To highlight MAPP's capability for in situ surface characterization in a tokamak.
  • To outline the control and analysis systems developed for MAPP's remote operation.

Main Methods:

  • Implementation of a compact in vacuo surface science diagnostic (MAPP).
  • Integration with the Lithium Tokamak Experiment (LTX) at PPPL.
  • Development of remote control systems for vacuum, power, and probe drive.
  • Incorporation of onboard Langmuir probes and advanced spectroscopy techniques.

Main Results:

  • MAPP is operational for in situ surface characterization.
  • Control and analysis systems are under development for full remote operation.
  • The system integrates multiple surface analysis techniques including XPS, LIS, DRS, and TDS.

Conclusions:

  • MAPP provides a versatile platform for detailed surface analysis of tokamak components.
  • The developed remote operation capabilities enhance experimental efficiency and safety.
  • This diagnostic advances the understanding of plasma-wall interactions in fusion devices.