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>Development of a fully integrated readout system for high counting rate position sensitive measurements of X-ray using silicon strip detectors
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Development of a fully integrated readout system for high counting rate position sensitive measurements of X-ray using silicon strip detectors
The paper describes the development of a multi-channel readout system for X-ray measurements using silicon strip detectors. In the front-end ASIC a binary readout scheme is employed. The binary data are stored in the asynchronous counters and read out serially at the end of the measurement sequence. The front-end circuit is designed to work with DC coupled detectors with the leakage current up to few nA. The size of the input device is optimised for a detector capacitance of about 2-5 pF per strip. An equivalent noise charge of 110 e{sup}- rms has been achieved for the total strip capacitance of 2.5 pF at the peaking time of 1 μs. Low noise performance and high counting rate capability have been demonstrated in measurements of X-ray spectra.
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机译:本文介绍了使用硅条检测器进行X射线测量的多通道读出系统的开发。在前端ASIC中采用二进制读出方案。二进制数据存储在异步计数器中,并在测量序列的末尾串行读出。前端电路设计用于使用直流耦合探测器,漏电流可达几NA。输入装置的大小针对每条条带约2-5pF的检测器电容进行了优化。在1μs的峰值时间为2.5pf的总条带电容已经实现了110 e {sup} -rms的等效噪声电量。在X射线光谱的测量中已经证明了低噪声性能和高计数率能力。
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