Nuclear Techniques ›› 2020, Vol. 43 ›› Issue (6): 60201-060201.doi: 10.11889/j.0253-3219.2020.hjs.43.060201


Study of vacuum arc ion source based on a novel alloy deuteride cathode

Huiyi LYU1,Tao WANG2,Zhen YANG3(),Chenyang DONG1,Haobo XU1,Pan DONG2   

  1. 1.School of National Defense Science and Technology, Southwest University of Science and Technology, Mianyang 621010, China
    2.Institute of Fluid Physics, China Academy of Engineering Physics, Mianyang 621900, China
    3.Sino-French Institute of Nuclear Engineering and Technology, Sun Yat-sen University, Zhuhai 519082, China
  • Received:2019-12-30 Revised:2020-04-26 Online:2020-06-15 Published:2020-06-12
  • Contact: Zhen YANG
  • About author:LYU Huiyi, male, born in 1970, graduated from Lanzhou University with a doctoral degree in 2010, focusing on the neutron source technology and beam target interaction
  • Supported by:
    National Natural Science Foundation of China(11505147);Sichuan Education Department Project(16zd1143)

Abstract: Background

The vacuum arc ion source with metal deuteride electrodes can generate high current deuterium ion beam, hence can be widely used in neutron generators, high-intensity accelerators and other fields.


This study aims to introduce a novel alloy deuteride electrode (Zr0.45Ti0.5Cu0.05Dx).


The novel alloy material was made by vacuum levitation melting with Ti, Zr, and Cu. The deuteride electrode (Zr0.45Ti0.5Cu0.05Dx) was made in a high temperature deuteration apparatus. The material properties of the electrode and the discharge of the vacuum arc ion source were analyzed. In addition, composition of deuterium alloy cathode produced by vacuum arc discharge was analyzed by the magnetic analysis technology. The stability of the deuterium composition was compared with the traditional titanium deuteride electrode ion source.


The volume expansion of the novel alloy deuteride (MDx, x=1.6~1.7) is about 18%. Macroscopic crack on the surface of the alloy deuteride is found by naked eyes while some micro cracks can be seen by the scanning electron microscope (SEM). The size of the micro cracks is less than 100 nm.


The novel alloy deuteride electrode (Zr0.45Ti0.5Cu0.05Dx) is a good candidate for the vacuum arc ion source.

Key words: Vacuum arc ion source, Alloy deuteride electrode, Magnetic analysis, Deuteron composition

CLC Number: 

  • TL503.4