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JIN Da-zhi, YANG Zhong-hai, DAI Jing-yi. Simulation for Suppressing of Secondary Electrons in Neutron Generator[J]. Journal of University of Electronic Science and Technology of China, 2009, 38(1): 83-86.
Citation: JIN Da-zhi, YANG Zhong-hai, DAI Jing-yi. Simulation for Suppressing of Secondary Electrons in Neutron Generator[J]. Journal of University of Electronic Science and Technology of China, 2009, 38(1): 83-86.
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Simulation for Suppressing of Secondary Electrons in Neutron Generator

  • 1.

    School of Physical Electronics,University of Electronic Science and Technology of China Chengdu 610054;

  • 2.

    Institute of Electronic Engineering,China Academy of Engineering Physics Mianyang Sichuan 621900

  • Received Date: 2007-09-30
  • Rev Recd Date: 2008-04-18
  • Publish Date: 2009-02-15
  • The producing mechanism of secondary electrons in sealed neutron generator is discussed and several methods to suppress secondary electrons are introduced. The PIC simulation is carried out for the different methods. The result indicates that only a part of secondary electrons can be suppressed by Faraday cylinder and a part of them can enter into the accelerating gap to form electron current. The secondary electron current is about 1/5 of emitting current of secondary electrons on target. But almost all secondary electrons can be suppressed by electrostatic field combined with Faraday cylinder and the secondary electron current is about zero when the deflection voltage is 300 V.
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  • 1. 

    沈阳化工大学材料科学与工程学院 沈阳 110142

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Simulation for Suppressing of Secondary Electrons in Neutron Generator

  • 1. School of Physical Electronics,University of Electronic Science and Technology of China Chengdu 610054;
  • 2. Institute of Electronic Engineering,China Academy of Engineering Physics Mianyang Sichuan 621900
  • Received Date: 2007-09-30
  • Rev Recd Date: 2008-04-18
  • Publish Date: 2009-02-15

Abstract: The producing mechanism of secondary electrons in sealed neutron generator is discussed and several methods to suppress secondary electrons are introduced. The PIC simulation is carried out for the different methods. The result indicates that only a part of secondary electrons can be suppressed by Faraday cylinder and a part of them can enter into the accelerating gap to form electron current. The secondary electron current is about 1/5 of emitting current of secondary electrons on target. But almost all secondary electrons can be suppressed by electrostatic field combined with Faraday cylinder and the secondary electron current is about zero when the deflection voltage is 300 V.

JIN Da-zhi, YANG Zhong-hai, DAI Jing-yi. Simulation for Suppressing of Secondary Electrons in Neutron Generator[J]. Journal of University of Electronic Science and Technology of China, 2009, 38(1): 83-86.
Citation: JIN Da-zhi, YANG Zhong-hai, DAI Jing-yi. Simulation for Suppressing of Secondary Electrons in Neutron Generator[J]. Journal of University of Electronic Science and Technology of China, 2009, 38(1): 83-86.
shu

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