FusionPapers
図版検索トレンドwiki日本の研究
© 2026 FUSIONPAPERS
About法務情報
トップに戻る

Edge plasma pressure measurements using a mechanical force sensor on the tokamak ISTTOK

T Lunt, C Silva, H Fernandes, C Hidalgo, M A Pedrosa, P Duarte, H Figueiredo, T Pereira2007年Plasma Physics and Controlled FusionIF 2.2出版社

In the present paper we report on a novel mechanical probe, which is able to measure the plasma pressure directly. The probe consists of two pendulums whose heads are exposed to the tokamak edge plasma, while the deflection is measured very sensitively outside the plasma by means of semi-conductor strain gauges. The plasma pressure was successfully measured in the ISTTOK edge plasma, its value being in good agreement with that derived from the electrical probe data (pp = 1–10 Pa). Furthermore, we discuss the possibility of determining the ion temperature Ti = pp/n − Te by combining the pressure measurement with those of n and Te from the electrical probes. Although the derived ion temperatures—besides that in the region close to the limiter—were reasonable, its uncertainty is still very large.

日本語訳

本論文では、プラズマ圧力を直接測定できる新規の機械的プローブについて報告する。本プローブは、先端部がトカマク周辺プラズマに曝露される2つの振り子から構成され、そのたわみは半導体ひずみゲージによりプラズマ外部で非常に高感度に測定される。ISTTOKにおいてプラズマ圧力の測定に成功し、その値は電気的プローブから得られた値(pp = 1–10 Pa)と良好な一致を示した。さらに、圧力測定と電気的プローブによるnおよびTeの測定を組み合わせることで、イオン温度Ti = pp/n − Teを決定する可能性について議論する。導出されたイオン温度は、リミッター近傍の領域を除けば妥当な値であったが、その不確かさは依然として非常に大きい。

wiki

Edge plasmaISTTOK
この論文にはまだAI要約がありません。

関連論文

3D particle-in-cell modeling of Langmuir probe effective collecting area in magnetized plasma

2018Plasma Physics and Controlled Fusion

Improved understanding of the ball-pen probe through particle-in-cell simulations

2017Plasma Physics and Controlled Fusion

High-speed plasma measurements with a plasma impedance probe

2023Review of Scientific Instruments

Detailed plasma potential measurements in a radio-frequency expanding plasma obtained from various electrostatic probes

2009Physics of Plasmas

Double probe measurement of electron thermal fluctuations in a plasma

1974Review of Scientific Instruments

Plasma edge turbulence probing and feedback control and stabilization experiments

1995Nuclear Fusion

Study of ion sheath expansion and anisotropy of the electron parallel energy distribution in the CASTOR tokamak

2007Plasma Physics and Controlled Fusion

Probe for electrostatic wave measurements in plasmas

1988Review of Scientific Instruments

Tokamak plasma diagnosis by electrical probes

1994Plasma Physics and Controlled Fusion

Plasma detachment study of high density helium plasmas in the Pilot-PSI device

2016Nuclear Fusion