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Strongly Localized Potential Profile Measurements Through Stark Effects in the Central Core Region of an Inertial Electrostatic Fusion Device

Kiyoshi Yoshikawa, Ken Takiyama, Kai Masuda, Hisayuki Toku, Takahiro Koyama, Kenji Taruya, Hirofumi Hashimoto, Yasushi Yamamoto, Masami Ohnishi, Hiroshi Horiike, Nobuyuki Inoue

Fusion Science and Technology / Volume 39 / Number 3 / May 2001 / Pages 1193-1201

Technical Paper /

Strongly localized electric fields were measured in the central cathode helium plasma core region of an inertial electrostatic confinement fusion device by using laser-induced fluorescence (LIF) by the degree of polarization and by the longitudinal alignment methods. Both results show double well potential formation with a slight concave at the center in excellent agreement. The decay time of the excited states is found to indicate least effects by the collisions to ensure the LIF method.

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