摘要
Flash ADC可以记录实验中的完整电流或电压波形,为实验数据的离线分析提供更多的信息。本工作利用CAEN V729A四通道40MHz FADC以及峰敏感V785N ADC插件,建立了基于Linux操作系统和VME总线的小型实验数据获取系统。该系统将用作暗物质探测实验中反冲核抑制因子的中子散射测量实验研究的数据获取,并根据实验要求利用系列低能γ(X)射线对该数据采集系统支持的高纯锗(HPGe)探测器进行了能量刻度,得到了高纯锗(HPGe)探测器系统的能量线形和可探测的能量低阈值。
The whole signal pulse shape from an experimental system can be recorded by FADC system and provide more information about the output signals for offline data analysis. In this article, one small type of DAQ system based on CAEN V729A 4 channel 40MHz FADC module and peak sensing V785N ADC module has been established in order to do the measurement of quenching factor for recoiled germanium nuclei which is an important parameter for dark matter experiment with HPGe detector. The detector system based on this DAQ system has been calibrated with series of low energy X-ray source and the results show that it has a nice linear responsibility in 4keV-60keV energy range.
出处
《核电子学与探测技术》
CAS
CSCD
北大核心
2008年第2期270-273,281,共5页
Nuclear Electronics & Detection Technology
