Numerical simulation of cesium cooling effects in H- ion source

T. Morishita; M. Ogasawara; A. Hatayama

doi:10.1063/1.1150320

Numerical simulation of cesium cooling effects in H^- ion source

T. Morishita, M. Ogasawara, A. Hatayama

Research output: Contribution to journal › Conference article › peer-review

3 Citations (Scopus)

Abstract

Cesium volume reactions are included in a two-point model numerical code for a high power hydrogen negative ion source. The energy balance equation for the electron temperature and rate equations of Cs and Cs⁺ are included in our code to investigate the electron cooling and volume effects by cesium seeding. Cesium density in the ion source is taken as a variable for the calculation. Cesium is ionized over 95% in the driver region of the ion source. The electron temperature begins to decrease at cesium density 10¹¹ cm^-3 and the electron density increases because of the ionization of cesium.

Original language	English
Pages (from-to)	880-882
Number of pages	3
Journal	Review of Scientific Instruments
Volume	71
Issue number	2 II
DOIs	https://doi.org/10.1063/1.1150320
Publication status	Published - 2000 Feb
Externally published	Yes
Event	The 8th International Conference on Ion Sources (ICIS '99) - Kyoto, Japan Duration: 1999 Sept 6 → 1999 Sept 10

ASJC Scopus subject areas

Instrumentation

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10.1063/1.1150320

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title = "Numerical simulation of cesium cooling effects in H- ion source",

abstract = "Cesium volume reactions are included in a two-point model numerical code for a high power hydrogen negative ion source. The energy balance equation for the electron temperature and rate equations of Cs and Cs+ are included in our code to investigate the electron cooling and volume effects by cesium seeding. Cesium density in the ion source is taken as a variable for the calculation. Cesium is ionized over 95% in the driver region of the ion source. The electron temperature begins to decrease at cesium density 1011 cm-3 and the electron density increases because of the ionization of cesium.",

author = "T. Morishita and M. Ogasawara and A. Hatayama",

year = "2000",

month = feb,

doi = "10.1063/1.1150320",

language = "English",

volume = "71",

pages = "880--882",

journal = "Review of Scientific Instruments",

issn = "0034-6748",

publisher = "American Institute of Physics Publising LLC",

number = "2 II",

note = "The 8th International Conference on Ion Sources (ICIS '99) ; Conference date: 06-09-1999 Through 10-09-1999",

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T1 - Numerical simulation of cesium cooling effects in H- ion source

AU - Morishita, T.

AU - Ogasawara, M.

AU - Hatayama, A.

PY - 2000/2

Y1 - 2000/2

N2 - Cesium volume reactions are included in a two-point model numerical code for a high power hydrogen negative ion source. The energy balance equation for the electron temperature and rate equations of Cs and Cs+ are included in our code to investigate the electron cooling and volume effects by cesium seeding. Cesium density in the ion source is taken as a variable for the calculation. Cesium is ionized over 95% in the driver region of the ion source. The electron temperature begins to decrease at cesium density 1011 cm-3 and the electron density increases because of the ionization of cesium.

AB - Cesium volume reactions are included in a two-point model numerical code for a high power hydrogen negative ion source. The energy balance equation for the electron temperature and rate equations of Cs and Cs+ are included in our code to investigate the electron cooling and volume effects by cesium seeding. Cesium density in the ion source is taken as a variable for the calculation. Cesium is ionized over 95% in the driver region of the ion source. The electron temperature begins to decrease at cesium density 1011 cm-3 and the electron density increases because of the ionization of cesium.

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DO - 10.1063/1.1150320

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JO - Review of Scientific Instruments

JF - Review of Scientific Instruments

IS - 2 II

T2 - The 8th International Conference on Ion Sources (ICIS '99)

Y2 - 6 September 1999 through 10 September 1999

ER -

Numerical simulation of cesium cooling effects in H^- ion source

Abstract

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