Offline data processing from IQT files of Tektronix spectrum analyzer and its application to electron cooling experiment
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摘要: 泰克实时频谱仪存储的IQT格式数据文件的特殊结构给后期实验数据处理带来不便。分析了IQT文件的存储结构，说明了泰克实时频谱仪的IQT格式数据文件的后台处理过程，通过数学方法提高了文件中频变弱信号的强度；通过对频谱仪实验数据进行数学处理，得到了兰州重离子加速器冷却储存环36Ar18+离子束的纵向电子冷却力大小随离子-电子相对速度的变化曲线。该处理方法弥补了频谱仪离线分析软件的局限性。Abstract: IQT files, the spectrum data files of Tektronix real-time spectrum analyzer with special structure are found hardly to manipulate in late experimental data processing. The structure and offline processing of IQT files are analyzed, and the signal contrast is mathematically improved in this paper. As an application example in experimental data processing, the longitudinal electron cooling force of an 36Ar18+21.7 MeV/u beam at different ion-electron relative velocity is obtained. This processing method contributes to the offline processing of real-time spectrum data in experiments.
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Key words:
- IQT file /
- offline processing /
- measurement of electron cooling force
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