中文摘要：

The readout electronics for a prototype softX-ray spectrometer based on silicon drift detector (SDD),for precisely measuring the energy and arrival time ofX-ray photons is presented in this paper. The systemmainly consists of two parts, i.e., an analog electronicssection (including a pre-amplifier, a signal shaper and filter,a constant fraction timing circuit, and a peak hold circuit)and a digital electronics section (including an ADC and aTDC). Test results with X-ray sources show that an energydynamic range of 1-10 keV with an integral nonlinearityof less than 0.1% can be achieved, and the energy resolutionis better than 160 eV @ 5.9 keV FWHM. Using awaveform generator, test results also indicate that timeresolution of the electronics system is about 3.7 ns, whichis much less than the transit time spread of SDD (\100 ns)and satisfies the requirements of future applications.

英文摘要：

The readout electronics for a prototype soft X-ray spectrometer based on silicon drift detector (SDD), for precisely measuring the energy and arrival time of X-ray photons is presented in this paper. The system mainly consists of two parts, i.e., an analog electronics section (including a pre-amplifier, a signal shaper and filter, a constant fraction timing circuit, and a peak hold circuit) and a digital electronics section (including an ADC and a TDC). Test results with X-ray sources show that an energy dynamic range of 1-10?keV with an integral nonlinearity of less than 0.1% can be achieved, and the energy resolution is better than 160?eV @ 5.9?keV FWHM. Using a waveform generator, test results also indicate that time resolution of the electronics system is about 3.7?ns, which is much less than the transit time spread of SDD (<100?ns) and satisfies the requirements of future applications.