中子管靶材料对中子输出和溅射产额的影响

年瑞雪; 景士伟

doi:10.11889/j.0253-3219.2018.hjs.41.080201

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中子管靶材料对中子输出和溅射产额的影响

低能加速器技术、射线技术及应用 | 更新时间：2021-05-19

- 中子管靶材料对中子输出和溅射产额的影响
- Impact of the target materials on neutron output and sputtering yield of the neutron tube
- 核技术 2018年41卷第8期文章编号：080201
- 作者机构：
  
  东北师范大学物理学院长春 130024
- 作者简介：
  
  [ "年瑞雪, 女, 1993年出生, 2016年毕业于沈阳师范大学, 现为硕士研究生, 研究方向为中子管及其应用技术", "NIAN Ruixue, female, born in 1993, graduated from Shenyang Normal University in 2016, master student, focusing on the neutron tube and its application technology" ]
  景士伟, E-mail:jingsw504@nenu.edu.cn JING Shiwei, E-mail:jingsw504@nenu.edu.cn
- 基金信息：
  
  国家自然科学基金面上项目(11275046)
- DOI：10.11889/j.0253-3219.2018.hjs.41.080201
  中图分类号： O571
- 收稿日期：2018-03-16，
  
  修回日期：2018-05-25，
  
  纸质出版日期：2018-08
- 稿件说明：
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年瑞雪, 景士伟. 中子管靶材料对中子输出和溅射产额的影响[J]. 核技术, 2018,41(8):080201

Ruixue NIAN, Shiwei JING. Impact of the target materials on neutron output and sputtering yield of the neutron tube[J]. Nuclear techniques, 2018, 41(8): 080201
年瑞雪, 景士伟. 中子管靶材料对中子输出和溅射产额的影响[J]. 核技术, 2018,41(8):080201 DOI： 10.11889/j.0253-3219.2018.hjs.41.080201.

Ruixue NIAN, Shiwei JING. Impact of the target materials on neutron output and sputtering yield of the neutron tube[J]. Nuclear techniques, 2018, 41(8): 080201 DOI： 10.11889/j.0253-3219.2018.hjs.41.080201.

摘要

中子管的中子产额和寿命受靶性能影响，利用SRIM（The Stopping and Range of Ions in Matter）2008模拟计算不同束流和高压条件下钛靶的中子产额，并与

He中子监测仪测量结果进行比较，实验和模拟结果符合较好。模拟计算不同能量氘离子在不同含量的钪钛、钼钛、铌钛三种合金的中子输出和溅射产额。结果表明：入射离子能量为120 keV、合金比例为0.2的钪钛合金中子产额最高，模拟值可达1.24×10

-1

；合金比例为0.6的钪钛合金，金属原子和氚原子溅射产额较低；与钼钛和铌钛两种合金相比，钪钛合金的中子输出高，而溅射产额低。

Abstract

Background

The neutron yield and lifetime of the neutron tube are affected by the performance of the target. The study of the characteristics of the target materials has far-reaching significance for improving the performance of the neutron tube.

Purpose

This study aims to get the effect of alloy target material on neutron yield and lifetime of neutron tube.

Methods

The neutron yield of titanium targets under different beams and accelerating high voltage conditions is simulated by SRIM 2008 and compared with the results of

He neutron monitor. The experimental and simulation results are in good agreement. The neutron output and sputtering yield at different deuterium energies and different alloy targets are calculated. The alloy targets include titanium alloys containing scandium

molybdenum and niobium with different atom ratios.

Results

The results show that the neutron yield of titanium alloys containing scandium as target materials in the incident ion energy 120 keV and the alloy ratio of 0.2 is the highest

and the simulated value can reach 1.24×10

-1

. The sputtering yield of metal atom and tritium atom is lower which the alloy ratio of titanium alloys containing scandium is 0.6. Compared with the titanium alloys containing molybdenum and niobium

the one containing scandium has higher neutron yield

and lower sputtering yield.

Conclusion

This work is the basis for the research of alloy target materials. Titanium alloy containing scandium is a potential material for the preparation of a high-yield and long-lived neutron tube in the future.

关键词

Keywords

references

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