title: Compact and high-particle-flux thermal-lithium-beam probe system for measurement of two-dimensional electron density profile.
abstract: A compact and high-particle-flux thermal-lithium-beam source for two-dimensional measurement of electron density profiles has been developed. The thermal-lithium-beam oven is heated by a carbon heater. In this system, the maximum particle flux of the thermal lithium beam was ~4 × 10(19) m(-2) s(-1) when the temperature of the thermal-lithium-beam oven was 900 K. The electron density profile was evaluated in the small tokamak device HYBTOK-II. The electron density profile was reconstructed using the thermal-lithium-beam probe data and this profile was consistent with the electron density profile measured with a Langmuir electrostatic probe. We confirm that the developed thermal-lithium-beam probe can be used to measure the two-dimensional electron density profile with high time and spatial resolutions.
authors.affiliation: Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, Aichi 464-8603, Japan.
authors.forename: Y
authors.initials: Y
authors.lastname: Shibata
authors.affiliation: Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, Aichi 464-8603, Japan.
authors.forename: T
authors.initials: T
authors.lastname: Manabe
authors.affiliation: EcoTopia Science Institute, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, Aichi 464-8603, Japan.
authors.forename: S
authors.initials: S
authors.lastname: Kajita
authors.affiliation: Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, Aichi 464-8603, Japan.
authors.forename: N
authors.initials: N
authors.lastname: Ohno
authors.affiliation: Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, Aichi 464-8603, Japan.
authors.forename: M
authors.initials: M
authors.lastname: Takagi
authors.affiliation: National Institute for Fusion Science, Oroshi, Toki, Gifu 509-5292, Japan.
authors.forename: H
authors.initials: H
authors.lastname: Tsuchiya
authors.affiliation: National Institute for Fusion Science, Oroshi, Toki, Gifu 509-5292, Japan.
authors.forename: T
authors.initials: T
authors.lastname: Morisaki