摘要
本文主要研究中国原子能科学研究院的过热液滴探测器在252 Cf中子源辐照下的气泡声音响应。通过对声音信号进行滤波预处理,得到短时信号能量、FFT频谱图、功率谱图、波形衰减时间常数,以此来确定气泡声音信号的真伪。
The sound response of the bubble detectors to neutrons by using 252Cf neutron source was described.Sound signals were filtered by sound card and PC.The short-time signal energy,FFT spectrum,power spectrum,and decay time constant were got to determine the authenticity of sound signal for bubbles.
出处
《原子能科学技术》
EI
CAS
CSCD
北大核心
2012年第9期1133-1137,共5页
Atomic Energy Science and Technology
基金
国家重点基础研究发展计划资助项目(2010CB833003)
关键词
过热液滴
气泡探测器
频率
衰减时间常数
功率谱
superheated drop
bubble detector
frequency
decay time constant
power spectrum
