Abstract

Scandium deuteride (ScDx) thin films, as an alternative target for deuterium-deuterium (D-D) reaction, are a very important candidate for detection and diagnostic applications. Albeit with their superior thermal stability, the ignorance of the stability of ScDx under irradiation of deuterium ion beam hinders the realization of their full potential. In this report, we characterize ScDx thin films with scanning electron microscopy (SEM) and X-ray diffraction (XRD), Rutherford backscattering spectroscopy (RBS) and elastic recoil detection analysis (ERDA). We found with increased implantation of deuterium ions, accumulation and diffusion of deuterium are enhanced. Surprisingly, the concentration of deuterium restored to the value before implantation even at room temperature, revealing a self-healing process which is of great importance for the long-term operation of neutron generator.

Details

Title
Diffusion and distribution of deuterium in scandium deuteride thin films under irradiation of deuterium ion beam
Author
Wang, Tao 1 ; Long, Jidong 2 ; Wang, Shiwei 3 ; Yang, Zhen 2 ; Li, Jie 2 ; Huang, Gang 2 ; Zhang, Linwen 2 ; Yang, Allen Jian 4 ; Xiao Renshaw Wang 5 

 Institute of Fluid Physics, CAEP, P. O. Box 919-106, Mianyang, China; School of Nuclear Science and Technology, University of Science and Technology of China, Hefei, China 
 Institute of Fluid Physics, CAEP, P. O. Box 919-106, Mianyang, China 
 School of Sino-Russian, Heilongjiang University, Harbin, China 
 Division of Physics and Applied Physics, School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore, Singapore 
 Division of Physics and Applied Physics, School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore, Singapore; School of Electrical and Electronic Engineering, Nanyang Technological University, Singapore, Singapore 
Pages
1-6
Publication year
2017
Publication date
Oct 2017
Publisher
Nature Publishing Group
e-ISSN
20452322
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
2120717877
Copyright
© 2017. This work is published under http://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.