An Efficient Laser Decontamination Process Based on Non-Radioactive Specimens of Nuclear Power Materials

人体净化 激光器 材料科学 激光功率缩放 核退役 过程(计算) 污染 辐照 核工程 光学 废物管理 核化学 计算机科学 化学 物理 工程类 生物 操作系统 核物理学 生态学
作者
Hu Yang,Changsheng Liu,K. Li,Jian Cheng,Zhiming Zhang,En–Hou Han
出处
期刊:Materials [Multidisciplinary Digital Publishing Institute]
卷期号:16 (24): 7643-7643 被引量:4
标识
DOI:10.3390/ma16247643
摘要

Nuclear power components contain radioactivity on their surfaces after long-term service, which can be harmful to personnel and the environment during maintenance, dismantling, and decommissioning. In this experiment, laser decontamination technology is utilized to remove radioactivity from their surfaces. In order to meet the actual needs, a laser decontamination process without spot overlapping has been studied. Under the same equipment conditions, the decontamination efficiency of the non-spot overlapping process is 10 times higher than that of the spot overlapping process. Alloy 690 is used as the test substrate, and non-radioactive specimens are prepared by simulating primary-circuit hydrochemical conditions. The surface morphology, elemental composition, and phase composition of the specimens before and after laser decontamination are investigated with SEM and XRD using the single-pulse experiment and power single-factor experiment methods, and the laser decontamination effect was evaluated. The results show that the decontamination efficiency reached 10.8 m2/h under the conditions of a pulse width of 500 ns, a laser repetition frequency of 40 kHz, a scanning speed of 15,000 mm/s, and a line spacing of 0.2 mm, according to which the removal effect was achieved when the laser power was 160 W and the oxygen content on the surface was 6.29%; additionally, there were no oxide phases in the XRD spectra after decontamination. Therefore, the laser cleaning process without spot overlap can provide reference for future practical operations to achieve efficient removal of radioactivity from nuclear power components.
最长约 10秒,即可获得该文献文件

科研通智能强力驱动
Strongly Powered by AbleSci AI
科研通是完全免费的文献互助平台,具备全网最快的应助速度,最高的求助完成率。 对每一个文献求助,科研通都将尽心尽力,给求助人一个满意的交代。
实时播报
破罐子完成签到 ,获得积分10
刚刚
wen完成签到,获得积分10
刚刚
周小鱼发布了新的文献求助10
1秒前
2秒前
赵倩发布了新的文献求助10
2秒前
2秒前
林晚停完成签到,获得积分10
2秒前
他说完成签到,获得积分10
2秒前
3秒前
科目三应助小熊饼干采纳,获得10
3秒前
3秒前
闪闪婴发布了新的文献求助10
3秒前
kxx完成签到,获得积分10
3秒前
4秒前
怡然蘑菇完成签到,获得积分10
4秒前
4秒前
5秒前
傲人男根发布了新的文献求助20
5秒前
XuQing关注了科研通微信公众号
5秒前
5秒前
Ava应助minminzi采纳,获得10
6秒前
Flllllll完成签到,获得积分10
6秒前
DW应助朴实的书白采纳,获得10
7秒前
yilan发布了新的文献求助10
7秒前
李悟尔发布了新的文献求助10
7秒前
8秒前
lenetivy发布了新的文献求助10
9秒前
cccchen发布了新的文献求助10
9秒前
优雅的荆完成签到,获得积分10
9秒前
10秒前
shuang0116完成签到,获得积分0
10秒前
FashionBoy应助小叶叶采纳,获得10
10秒前
10秒前
10秒前
hjz发布了新的文献求助50
11秒前
Luo完成签到,获得积分10
11秒前
hameln发布了新的文献求助10
11秒前
卢街娃儿发布了新的文献求助10
11秒前
12秒前
哈哈完成签到,获得积分10
12秒前
高分求助中
(应助此贴封号)【重要!!请各用户(尤其是新用户)详细阅读】【科研通的精品贴汇总】 10000
Organizational Behavior 510
Management and the Arts 510
Matrix Methods in Data Mining and Pattern Recognition Second Edition 510
Rosenblum, Global Change Biology 500
CLSI VET01S-2024 Performance Standards for Antimicrobial Disk and Dilution Susceptibility Tests for Bacteria Isolated From Animals (7th Ed) 500
DIPPR Project 801 - Full Version 380
热门求助领域 (近24小时)
化学 材料科学 医学 生物 纳米技术 计算机科学 化学工程 工程类 有机化学 物理 复合材料 生物化学 内科学 细胞生物学 基因 遗传学 免疫学 冶金 光电子学 癌症研究
热门帖子
关注 科研通微信公众号,转发送积分 7767444
求助须知:如何正确求助?哪些是违规求助? 9311073
关于积分的说明 20321479
捐赠科研通 7352460
什么是DOI,文献DOI怎么找? 3315318
关于科研通互助平台的介绍 2464693
邀请新用户注册赠送积分活动 2330011