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Polarized pyrometric probe: principles of operation and measurement of plasma particle energy

R. Bardet, R. Geller1966年被引用 2Nuclear FusionIF 3出版社

The polarized pyrometric probe is a thermally insulated electrostatic probe made of tungsten or carbon. Unlike the Langmuir probe, its operating characteristic is located beyond the knees on the curve indicating ion and electron saturation. In hot, dense plasmas (where the Langmuir probe is difficult to use), the radiance of this probe, inferred from the temperature reading on the pyrometer, is compared with the product VI (voltage times current) of the characteristic. It is then easy to calculate the energy of the particles and to estimate their density. The principle underlying these measurements is explained and illustrated by two experimental applications for ions of 300 and of 1200 eV.

日本語訳

分極パイロメトリックプローブは、タングステンまたはカーボン製の熱的に絶縁された静電プローブである。ラングミュアプローブとは異なり、その動作特性は、イオン飽和および電子飽和を示す曲線上の膝を越えた位置にある。高温・高密度プラズマ(ラングミュアプローブの使用が困難な環境)では、パイロメータの温度読み取りから推定されるこのプローブの放射輝度が、特性のVI積(電圧×電流)と比較される。そうすることにより、粒子のエネルギーを容易に計算し、その密度を見積もることができる。これらの測定の根底にある原理は、300 eVおよび1200 eVのイオンに対する2つの実験的応用によって説明され、実証されている。

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