A Phenomenological Probe Model of Fast Ion Measurement Using a Hybrid Directional Probe

Autor:	K. Nagaoka, M. Isobe, M. Osakabe, K. Y. Watanabe, Y. Takeiri, null CHS experimental group
Rok vydání:	2008
Předmět:	Nuclear magnetic resonance Materials science Heat flux Physics::Plasma Physics Position (vector) Yield (chemistry) Calibration Measure (physics) Ion current Condensed Matter Physics Molecular physics Secondary electrons Ion
Zdroj:	Contributions to Plasma Physics. 48:480-484
ISSN:	1521-3986 0863-1042
Popis:	A phenomenological probe model was developed for quantitative fast-ion-measurement using a hybrid directional probe (HDP), which is a directional probe to measure ion current and heat flux at the same position. The secondary electrons due to fast-ion-injection onto the probe surface enhances the ion-saturation-current, thus a thermal probe method was required for quantitative measurement of fast ions. The model gives a simple expression of the secondary electron yield as a function of ion currents and heat fluxes measured by the HDP, and can determine the net fast-ion-current without the calibrations of the thermal probe method. The model was applied to the experimental results of fast-ion-measurements using a HDP in CHS, and the secondary electron yield obtained by the model agrees with the calibration results of the HDP. (© 2008 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim)
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::874578aa25c61a583c1abb8bb730f812 https://doi.org/10.1002/ctpp.200810077 Zobrazit plný text záznamu Plný text