JOURNAL OF ISOTOPES ›› 0, Vol. ›› Issue (): 0-0.

### Feasibility of Tunable Diode Laser Absorption Spectroscopy Applied in the Field of Nuclear Safety

FAN Feng-ying1;WANG Han-wei2;GAO Mao-dong2;MIAO Wen-tao2

1. 1.Department of Engineering Physics, Tsinghua University, Beijing 100084, China;2.Department of Physics, Tsinghua University, Beijing 100084, China
• Published:2017-01-09

### 可调谐吸收光谱技术在核安全领域应用的可行性

1. 1.清华大学 工程物理系，北京100084；2.清华大学 物理系，北京100084

Abstract:

Uranium hexafluoride (UF6) is the primary form in the Nuclear Fuel Cycle commonly used for the uranium storage and the uranium enrichment. UF6 is highly reactive to the water in atmosphere, forming hydrogen fluoride. Therefore, the measurement of UF6 abundance and HF concentration can provide the investigation for the nuclear accident and nuclear safeguard, which is significant in the field of nuclear safety. Recently, the tunable diode laser absorption spectroscopy (TDLAS) grows quickly and is widely used in the measurement of gas concentration and isotope ratio. TDLAS have the advantages of time saving and real-time measurements. This review was focused on the progress of the measurements of the abundance for UF6 and the concentration for HF, then made an analysis on improving the measurement accuracy and the detection sensitivity. The application prospects of TDLAS technique in the field of nuclear safety were presented.