中子深度剖面分析技术现状及发展趋势

Current status and development trends of neutron depth profiling

中子深度剖面分析(Neutron Depth Profiling,NDP)因其高灵敏度、非破坏性的特点在测量元素深度分布中占有独特的优势。首先对NDP技术原理和数据处理方法进行介绍,随后对世界上几处NDP装置的设备以及相关参数进行比较,介绍了NDP技术升级方向。由于NDP技术对~6Li高度敏感以及非破坏性的特点使其可以对锂电池进行原位测量,所以该技术特别适用于锂离子电池的相关研究中。本文对NDP在锂电池研究中的应用进行重点说明,并对其在高温合金、半导体材料及核材料中的应用进行介绍。

Neutron depth profiling(NDP)offers unique advantages in the measurement of element depth distributions,characterized by its high sensitivity and non-destructive nature.This article presents an overview of the principles and data processing methods employed in NDP technology,followed by a comprehensive comparison of various NDP devices and their corresponding parameters on a global scale.Furthermore,potential avenues for upgrades of NDP devices are explored.Given the remarkable sensitivity and non-destructive attributes of NDP technology in detecting 6Li,it proves particularly well-suited for in-situ measurements in lithium batteries,rendering it an invaluable tool for research in this field.The article underscores the application of NDP in lithium battery research whilst its utilization in high-temperature alloys,semiconductor materials,and nuclear materials is introduced as well.