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1998 Fiscal Year Final Research Report Summary

Fundamental Study of Bidirectional Pulse Generator System for Linear Induction Accelerators

Research Project

Project/Area Number 09450109
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field 電力工学・電気機器工学
Research InstitutionTokyo Institute of Technology

Principal Investigator

HOTTA Eiki  Tokyo Institute of Technology, Interdisciplinary Graduate School of Science and Engineering, Professor (70114890)

Co-Investigator(Kenkyū-buntansha) OKINO Akitoshi  Tokyo Institute of Technology, Department of Engineering, Research Associate (60262276)
Project Period (FY) 1997 – 1998
KeywordsLIA / Bidirectional Pulser / Laser Trigger / Vacuum Switch / Gas Gap Switch / Parallel Switch
Research Abstract

The objective of this study is to get fundamental characteristics of a bidirectional pulse generator system for external pulse injection and to realize the system for linear induction accelerators. The bidirectional pulse generator system consists of a pulse generator, a cavity and a load. To realize the system, effects of each component of the pulse generator on the output waveform (accelerating voltage waveform) should be investigated. Using an equivalent circuit, the output voltage waveform was simulated. The results were compared with the experimental results obtained using a dummy load, which consists of a resistor and a diode connected in series. As a result, it was found that the inductance of output switch affected the output waveform very much and to get an ideal waveform, the inductance should be reduced. To reduce the inductance, parallel operation of switches is effective.
A laser-triggered switch is known to be adequate for parallel operation, because it has low delay and low jitter. Therefore, characteristics of a laser-triggered switch filled with air, SF_6 or evacuated are experimentally investigated. A Q-switched Nd:YAG laser was used, the wavelength of which is 1064nm, the maximum output energy is 650mJ, and the pulse width is 5-7ns. The third harmonics was also used. Comparing the results obtained with focused and non-focused laser beams, it was shown that the gap separation length was not so long in our case to reveal the difference of the characteristics.
Using a double cavity and an LC inversion generator, an accelerating voltage of 40kV was obtained across the dummy load. A device, which can be used for synchronous operation between the laser and the pulse generator, was made and it is planned to change the current switch and to investigate the characteristics of the bidirectional pulse generator system with a laser-triggered switch.

  • Research Products

    (19 results)

All 1999 1998 1997

All Journal Article (19 results)

  • [Journal Article] 線形誘導加速器用双極性パルス電源のためのレーザトリガスイツチの基礎特性1999

    • Author(s)
      小澤正啓, 沖野晃俊, 堀田栄喜
    • Journal Title

      線形誘導加速器研究会論文集

      Pages: 5-14

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Bidirectional Line Pulser System for Linear Induction Accelerators1999

    • Author(s)
      M. Ozawa, M. Watanabe, E. Hotta, A. Okino, K-C. Ko
    • Journal Title

      Proc. 12th International Pulsed Power Conference 2

      Pages: 951-954

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Efficient Discharge Process of Large-Capacity Flue Gas by UsingBidirectional Pulse Generator1999

    • Author(s)
      K-C. Ko, J-M. Choi, J-R. Jeon, K-S. Chung, G-H. Kim, E. Hotta
    • Journal Title

      Proc. 12th International Pulsed Power Conference 2

      Pages: 1299-1302

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Bidirectional Line Pulser System for Linear Induction Accelerators1999

    • Author(s)
      M. Ozawa, M. Watanabe, E. Hotta, A. Okino, K-C. Ko
    • Journal Title

      Proc. 12th IEEE Int. Pulse Power Conf Vol. 2

      Pages: 951-954

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] High Efficiency Discharge Process of Large-Capacity Flue Gas by Using Bidirectional Pulse Generator1999

    • Author(s)
      K-C. Ko, J-M. Choi, J-R. Jeon, K-S. Chung, G-H. Kim, E. Hotta
    • Journal Title

      Proc. 12th IEEE Int. Pulse Powere Conf Vol. 2

      Pages: 1299-1302

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Fundamental Characteristics of Laser-Triggered Switch for Bidirectional Pulse Generator Applicable to Linear Induction Accelerator(in Japanese))1999

    • Author(s)
      M. Ozawa, A. Okino, E. Hotta
    • Journal Title

      Proc. Annual Meeting of IEEJ Vol. 1

      Pages: 200

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Fundamental Study of Laser-Triggered Switch for Bidirectional Pulser Applicable to Linear Induction Accelerator(in Japanese)1999

    • Author(s)
      M. Ozawa, A. Okino, E. Hotta
    • Journal Title

      Proc. Meeting of Linear Induction Accelerator

      Pages: 5-14

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] 線形誘導加速器用双極性パルス電源のためのレーザートリガスイッチの検討1998

    • Author(s)
      小澤正啓, 大村純史, 沖野晃俊, 堀田栄喜
    • Journal Title

      電気学会放電研究会 ED-98

      Pages: 7-12

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Bidirectional Pulse Generator System for Linear InductionAccelerator1998

    • Author(s)
      J. Ohmura, M. Ozawa, A. Okino, J-H. Park, K-C. Ko, E. Hotta
    • Journal Title

      Proc. 12th Int. Conf. on High-Power Particle Beams 1

      Pages: 277-280

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Bidirectional Pulse Generator with Laser-Triggered Switch forLinear Induction Accelerator1998

    • Author(s)
      A. Okino, J. Ohmura, M. Ozawa, E. Hotta
    • Journal Title

      Proc. 25th IEEE International Conf. on Plasma Science

      Pages: 252

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Bidirectional Pulse Generator System for Linear Induction Accelerator1998

    • Author(s)
      J. 0hmura, M. 0zawa, A. 0kino, J-H. Park, K-C. Ko, E. Hotta
    • Journal Title

      Proc. 12th Int. Conf. on High-Power Particle Beam Vo. 1

      Pages: 277-280

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Bidirectional Pulse Generator System with Laser-Triggered Switch for Linear Induction Accelerator1998

    • Author(s)
      A. Okino, J. Ohmura, M. Ozawa, E. Hotta
    • Journal Title

      Proc. 25th IEEE Int. Conf. on Plasma Science 5P15

      Pages: 252

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Bidirectional Line Pulser System for Linear Induction Accelerator(in Japanese)1998

    • Author(s)
      M. Ozawa, J. Ohmura, A. Okino, E. Hotta
    • Journal Title

      Proc. 2nd Joint Conf. on Nuclear Fusion Energy B19

      Pages: 102

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Output Characteristics of Bidirectional Pulse generator System for Linear Induction Accelerator(in Japanese)1998

    • Author(s)
      M. Ozawa, J. Ohmura, A. Okino, E. Hotta
    • Journal Title

      Proc. Annual Meeting of IEEJ Vol. 1

      Pages: 49

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Laser-Triggered Switch Applicable to Bidirectional Line Pulser for Linear Induction Accelerator(in Japanese)1998

    • Author(s)
      M. Ozawa, J. Ohmura, A. Okino, E. Hotta
    • Journal Title

      IEEJ Meeting of Discharge ED-98-44

      Pages: 7-12

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Bidirectrional Pulse generator System for Linear Induction Accelerators1997

    • Author(s)
      T. Kobayashi, J. Ohmura, A. Okino, J-H. Park, K-C. Ko, E. Hotta
    • Journal Title

      Proc. 24th IEEE International Conf. on Plasma Science

      Pages: 334

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Bidirectional Pulse Generator System for Linear Induction Accelerators1997

    • Author(s)
      T. Kobayashi, J. Ohmura, A. Okino, J-H. Park, K-C. Ko, EA. Hotta
    • Journal Title

      Proc. 24th IEEE Int. Conf. on Plasma Science 7P34

      Pages: 334

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Bidirectional Pulse Generator System for Linear Induction Accelerator(in Japanese)1997

    • Author(s)
      J. Ohmura, T. Kobayashi, A. Okino, E. Hotta
    • Journal Title

      IEEJ Meeting of Plasma Science EP-97-44

      Pages: 37-42

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Bidirectional Pulser System for Linear Induction Accelerator (in Japanese)1997

    • Author(s)
      J. Ohmura, M. Ozawa, A. Okino, E. Hotta
    • Journal Title

      Proc. 14th Annual Meeting of JSPS

      Pages: 114

    • Description
      「研究成果報告書概要(欧文)」より

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Published: 2010-06-09  

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