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Development of front-end waveform digitizer for filter-fluorescer x-ray diagnostic in Shenguang laser facility
Weigang Yin1, Lian Chen1, Feng Li1
1State Key Laboratory of Particle Detection and Electronics, University of Science and Technology of China, Hefei 230026, China.
Abstract:
The filter-fluorescer x-ray diagnostic (FFLEX) in the Shenguang (SG) laser facility has been upgraded to infer the time-resolved behavior of hot electrons in inertial confinement fusion experiments. It significantly increases the bandwidth and anti-interference ability requirements of readout electronics. The current readout method is difficult to meet these requirements. A dedicated front-end waveform digitizer (DFWD) for the FFLEX is presented in this paper. It is very convenient to be installed in the front-end detectors of the FFLEX, and so the DFWD could be shielded as well as detectors. The test results show that it works well in the front-end environment. Compared with the existing system, the DFWD can minimize the impact of radiation on signal measurement and significantly improve the accuracy of the status and time-trend diagnosis of hot electrons.
