Study on high-flux laser ion source with applying magnetic field

Takahashi, Kazumasa; Okamura, Masahiro

Title: Study on high-flux laser ion source with applying magnetic field (in Japanese)

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Abstract

The laser ion source is a technology where by irradiating a solid target with a pulsed laser of high intensity (10⁸ W/cm² ~), ablation plasma is generated, and by applying there an external electric field for extracting and accelerating ions, high brightness ion beams are produced. This paper introduced the basic features of laser ion source and recent movement of the control of laser ion source using magnetic field. In the development of heavy ion inertial fusion (HIF) driver, engineers are challenging new tasks of supplying low valence, large current, and low emittance beams. In order to respond to the requirements of large current beams in HIF driver, attempts have been made to control the plasma via magnetic field to further increase the flux. The current of the laser ion source with application of solenoid magnetic field is dramatically improved and its amplification magnification can be adjusted by changing the position, length, and magnetic flux density of the solenoid. In order to further control the laser ion source toward HIF, the authors propose the guiding of plasma via multiple cusp magnetic field, and the guiding effect is being demonstrated through examination. According to the studies so far, the laser ionmore »« less

Authors:

Takahashi, Kazumasa ^[1]; Okamura, Masahiro ^[2]

Nagaoka Univ., Niigata (Japan)
Brookhaven National Lab. (BNL), Upton, NY (United States)

Publication Date:: Tue May 29 00:00:00 EDT 2018

Research Org.:: Brookhaven National Lab. (BNL), Upton, NY (United States)

Sponsoring Org.:: USDOE Office of Science (SC), Nuclear Physics (NP)

OSTI Identifier:: 1439452

Report Number(s):: BNL-205716-2018-JAAM
Journal ID: ISSN 0918-7928

Grant/Contract Number:: SC0012704

Resource Type:: Accepted Manuscript

Journal Name:: Purazuma, Kaku Yugo Gakkai-shi

Additional Journal Information:: Journal Volume: 94; Journal Issue: 6; Journal ID: ISSN 0918-7928

Publisher:: Japan Society of Plasma Science and Nuclear Fusion Research

Country of Publication:: United States

Language:: Japanese

Subject:: 70 PLASMA PHYSICS AND FUSION TECHNOLOGY; laser ion source, heavy ion beam, ablation plasma, high current beam, highly charged beam, solenoid magnetic field, multicusp magnetic field

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                    Takahashi, Kazumasa, and Okamura, Masahiro. Study on high-flux laser ion source with applying magnetic field.  United States: N. p., 2018. 
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                    Takahashi, Kazumasa, & Okamura, Masahiro. Study on high-flux laser ion source with applying magnetic field.  United States.

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                    Takahashi, Kazumasa, and Okamura, Masahiro. Tue .  
"Study on high-flux laser ion source with applying magnetic field".  United States.  https://www.osti.gov/servlets/purl/1439452.

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@article{osti_1439452,

  title        = {Study on high-flux laser ion source with applying magnetic field},

  author       = {Takahashi, Kazumasa and Okamura, Masahiro},

  abstractNote = {The laser ion source is a technology where by irradiating a solid target with a pulsed laser of high intensity (108 W/cm2 ~), ablation plasma is generated, and by applying there an external electric field for extracting and accelerating ions, high brightness ion beams are produced. This paper introduced the basic features of laser ion source and recent movement of the control of laser ion source using magnetic field. In the development of heavy ion inertial fusion (HIF) driver, engineers are challenging new tasks of supplying low valence, large current, and low emittance beams. In order to respond to the requirements of large current beams in HIF driver, attempts have been made to control the plasma via magnetic field to further increase the flux. The current of the laser ion source with application of solenoid magnetic field is dramatically improved and its amplification magnification can be adjusted by changing the position, length, and magnetic flux density of the solenoid. In order to further control the laser ion source toward HIF, the authors propose the guiding of plasma via multiple cusp magnetic field, and the guiding effect is being demonstrated through examination. According to the studies so far, the laser ion source can supply ion beams using a simple configuration, so it is suitable for miniaturization and may be adopted at many accelerator facilities. (A.O.)},

  doi          = {},

  journal      = {Purazuma, Kaku Yugo Gakkai-shi},

  number       = 6,

  volume       = 94,

  place        = {United States},

  year         = {Tue May 29 00:00:00 EDT 2018},

  month        = {Tue May 29 00:00:00 EDT 2018}

}

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