Plasma diagnostic techniques using particle beam probes
A brief overview is given of particle beam probing. The fundamental concepts common to all techniques are discussed as well as the design considerations for choosing a particular diagnostic technique. The capabilities of existing and proposed techniques, and the present status of the techniques in major magnetic confinement geometries is also presented. Techniques which involve the injection of a beam of neutral particles into the plasma are then considered. The techniques of beam attenuation, beam scattering, and active charge exchange using a beam of light particles such as hydrogen or helium are first presented. Optical measurements of the Zeeman splitting of the radiation from a neutral lithium beam is then discussed, including a new proposal for significantly improving this technique through the addition of a dye laser. Two techniques involving the injection of heavy neutral particles are then presented, and the section concludes with two proposed techniques for measuring the properties of the alpha particles produced from actual fusion reactions. The diagnostic techniques which are based upon the injection of a beam of charged particles into the plasma are next described. The advantages and limitations of these techniques in comparison with the neutral techniques are discussed, followed by a description of specific techniques.
- Research Organization:
- Rensselaer Polytechnic Inst., Troy, NY (USA). Plasma Dynamics Lab.
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- AS02-76ET53004
- OSTI ID:
- 5049289
- Report Number(s):
- DOE/ET/53004-3; RPDL-80-15; TRN: 80-017593
- Country of Publication:
- United States
- Language:
- English
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