Calibration of the CHS HIBP ion beam trajectory with a gas ionization method

S. Lee; A. Fujisawa; T. P. Crowley; H. Iguchi; M. Kojima; Y. Hamada; K. Nishimura; S. Okamura; K. Matsuoka

doi:10.1016/S0920-3796(96)00612-6

Calibration of the CHS HIBP ion beam trajectory with a gas ionization method

S. Lee, A. Fujisawa, T. P. Crowley, H. Iguchi, M. Kojima, Y. Hamada, K. Nishimura, S. Okamura, K. Matsuoka

Research output: Contribution to journal › Article › peer-review

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Abstract

A three-dimensional complex trajectory is imposed on the heavy ion beam probe (HIBP) particle orbits in heliotron/torsatron devices. A pair of two-dimensional beam deflectors for primary and secondary beam lines are equipped in the Compact Helical System (CHS) HIBP, which makes it possible to measure the plasma potential at almost all plasma radii. A plasma observation point is determined by a set of four deflector voltages. Experimental verification for these observation points is necessary in such a complex configuration. In this study, a movable detector and a gas ionization method have been used to find these deflector voltages. Calibration procedures for these methods are described in detail. The movable detector is also used to optimize the focusing condition of the primary beam in the plasma region.

Original language	English
Pages (from-to)	645-648
Number of pages	4
Journal	Fusion Engineering and Design
Volume	34-35
DOIs	https://doi.org/10.1016/S0920-3796(96)00612-6
Publication status	Published - Mar 1997
Externally published	Yes

All Science Journal Classification (ASJC) codes

Civil and Structural Engineering
Nuclear Energy and Engineering
Materials Science(all)
Mechanical Engineering

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10.1016/S0920-3796(96)00612-6

Cite this

@article{879eb79aee6949388b938296c14dbd66,

title = "Calibration of the CHS HIBP ion beam trajectory with a gas ionization method",

abstract = "A three-dimensional complex trajectory is imposed on the heavy ion beam probe (HIBP) particle orbits in heliotron/torsatron devices. A pair of two-dimensional beam deflectors for primary and secondary beam lines are equipped in the Compact Helical System (CHS) HIBP, which makes it possible to measure the plasma potential at almost all plasma radii. A plasma observation point is determined by a set of four deflector voltages. Experimental verification for these observation points is necessary in such a complex configuration. In this study, a movable detector and a gas ionization method have been used to find these deflector voltages. Calibration procedures for these methods are described in detail. The movable detector is also used to optimize the focusing condition of the primary beam in the plasma region.",

author = "S. Lee and A. Fujisawa and Crowley, {T. P.} and H. Iguchi and M. Kojima and Y. Hamada and K. Nishimura and S. Okamura and K. Matsuoka",

year = "1997",

month = mar,

doi = "10.1016/S0920-3796(96)00612-6",

language = "English",

volume = "34-35",

pages = "645--648",

journal = "Fusion Engineering and Design",

issn = "0920-3796",

publisher = "Elsevier BV",

}

TY - JOUR

T1 - Calibration of the CHS HIBP ion beam trajectory with a gas ionization method

AU - Lee, S.

AU - Fujisawa, A.

AU - Crowley, T. P.

AU - Iguchi, H.

AU - Kojima, M.

AU - Hamada, Y.

AU - Nishimura, K.

AU - Okamura, S.

AU - Matsuoka, K.

PY - 1997/3

Y1 - 1997/3

N2 - A three-dimensional complex trajectory is imposed on the heavy ion beam probe (HIBP) particle orbits in heliotron/torsatron devices. A pair of two-dimensional beam deflectors for primary and secondary beam lines are equipped in the Compact Helical System (CHS) HIBP, which makes it possible to measure the plasma potential at almost all plasma radii. A plasma observation point is determined by a set of four deflector voltages. Experimental verification for these observation points is necessary in such a complex configuration. In this study, a movable detector and a gas ionization method have been used to find these deflector voltages. Calibration procedures for these methods are described in detail. The movable detector is also used to optimize the focusing condition of the primary beam in the plasma region.

AB - A three-dimensional complex trajectory is imposed on the heavy ion beam probe (HIBP) particle orbits in heliotron/torsatron devices. A pair of two-dimensional beam deflectors for primary and secondary beam lines are equipped in the Compact Helical System (CHS) HIBP, which makes it possible to measure the plasma potential at almost all plasma radii. A plasma observation point is determined by a set of four deflector voltages. Experimental verification for these observation points is necessary in such a complex configuration. In this study, a movable detector and a gas ionization method have been used to find these deflector voltages. Calibration procedures for these methods are described in detail. The movable detector is also used to optimize the focusing condition of the primary beam in the plasma region.

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U2 - 10.1016/S0920-3796(96)00612-6

DO - 10.1016/S0920-3796(96)00612-6

M3 - Article

AN - SCOPUS:0031096357

SN - 0920-3796

VL - 34-35

SP - 645

EP - 648

JO - Fusion Engineering and Design

JF - Fusion Engineering and Design

ER -

Calibration of the CHS HIBP ion beam trajectory with a gas ionization method

Abstract

All Science Journal Classification (ASJC) codes

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