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Readout system for ground-based tests of BGO calorimeter of DAMPE satellite

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Nuclear Science and Techniques 2017年第10期28卷 45-50页

作者： Jun-bin Zhang Chang-Qing Feng Si-Yuan Ma Qi Wang shu-bin liu Qi An State Key Laboratory of Particle Detection and Electronics University of Science and Technology of ChinaHefei 230026China Department of Modern Physics University of Science andTechnology of ChinaHefei 230026China

A readout system for ground-based tests of the bismuth germanium oxide(BGO) calorimeter of the Dark Matter Particle Explorer satellite is described in this *** system mainly consists of a data acquisition board with a field-programmable gate array to implement the control logic, and a graphical user interface software based on LabWindows/CVI. The system has been successfully applied in a series of ground-based environmental experiments and almost all the performance tests throughout the entire manufacturing processes. These contribute significantly to the development of the BGO calorimeter before being submitted for satellite-level integration.

关键词：卫星地面测试读出系统 BGO LabWindows/CVI 现场可编程门阵列阻尼图形用户界面暗物质粒子

On the single-electron local kinetic energy

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Science China Chemistry 1998年第2期41卷 174-181页

作者：杨忠志 Yan A lexander Wang shu-bin liu Department of Chemistry Liaoning Normal UniveraityDalian 116029 China Department of Chemistry Univerity of North Caroina.Chapel Hill.NC 27599USA

The single electron local kinetic energy is rigorously defined and explained based on Schrdinger equation for an electronic system. Its uniqueness and asymptotic behavior are demonstrated through two theorems, thereby clarifying the problem of arbitrary choice of the kinetic energy functional in density functional theory. The adequate models of the kinetic energy functional that satisfy the condition are suggested.

关键词： YANG Zhongzhi Yan A lexander Wang shu-bin liu

Readout electronics of a prototype spectrometer for measuring low-energy ions in solar wind plasma

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Nuclear Science and Techniques 2016年第6期27卷 130-136页

作者： Di Yang Zhe Cao Xi Qin Xin-Jun Hao shu-bin liu Chang-Qing Feng Qi An State Key Laboratory of Particle Detection and Electronics(IHEP-USTC) Hefei 230026China Department of Modern Physics University of Science and Technology of ChinaHefei 230026China Division of Space Physics University of Science andTechnology of ChinaHefei 230026China CAS Key Laboratory of Geospace Environment Hefei 230026China

Readout electronics is developed for a prototype spectrometer for in situ measurement of low-energy ions of30 e V/e–20 ke V/e in the solar wind plasma.A low-noise preamplifier/discriminator(A111F) is employed for each channel to process the signal from micro-channel plate(MCP) detectors.A high-voltage(HV) supply solution based on a HV module and a HV optocoupler is adopted to generate a fast sweeping HV and a fixed *** to limitation of telemetry bandwidth in space communication,an algorithm is implemented in an FPGA(field programmable gate array) to compress the raw *** results show that the electronics achieves a 1 MHz event rate and a large input dynamic range of 95 p C.A slew rate of 0.8 V/ls and an integral nonlinearity of 0.7-LSB for the sweeping HV,and a precision of less than 0.8 % for the fixed HV are obtained.A vacuum beam test shows an energy resolution of 12 ± 0.7 % full width at half maximum(FWHM) is achieved,and noise counts are less than10/sec,indicating that the performance meets the physical requirement.

关键词：低能离子等离子体原位测量电子学光谱仪太阳风读出原型

Test system of the front-end readout for an application-specific integrated circuit for the water Cherenkov detector array at the large high-altitude air shower observatory

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Nuclear Science and Techniques 2017年第6期28卷 140-149页

作者： Er-Lei Chen Lei Zhao Li Yu Jia-Jun Qin Yu Liang shu-bin liu Qi An State Key Laboratory of Particle Detection and Electronics University of Science and Technology of China Department of Modern Physics University of Science and Technology of China

The water Cherenkov detector array(WCDA) is an important part of the large high-altitude air shower observatory(LHAASO),which is in a research and development *** central scientific goal of LHAASO is to explore the origin of high-energy cosmic rays of the universe and to push forward the frontier of new *** simplify the WCDA's readout electronics,a prototype of a front-end readout for an application-specific integrated circuit(ASIC) is designed based on the timeover-threshold method to achieve charge-to-time ***-precision time measurement and charge measurement are necessary over a full dynamic range[1-4000photoelectrons(P.E.)].To evaluate the performance of this ASIC,a test system is designed that includes the front-end ASIC test module,digitization module,and test *** first module needs to be customized for different ASIC versions,whereas the digitization module and test software are tested for general-purpose *** the digitization module,a field programmable gate array-based time-todigital converter is designed with a bin size of 333 ps,which also integrates an inter-integrated circuit to configure the ASIC test module,and a universal serial bus interface is designed to transfer data to the remote *** results indicate that the time resolution is better than 0.5 ns,and the charge resolution is better than 30%root mean square(RMS) at 1 *** 3%RMS at 4000 P.E.,which are beyond the application requirements.

关键词： Time and charge measurement Photomultiplier tube (PMT) Water Cherenkov detector array Inter-integrated circuit Application-specific integrated circuit Test system

Readout electronics of a prototype time-of-flight ion composition analyzer for space plasma

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Nuclear Science and Techniques 2018年第4期29卷 98-107页

作者： Di Yang Zhe Cao Xin-Jun Hao Yi-Ren Li shu-bin liu Chang-Qing Feng Qi An State Key Laboratory of Particle Detection and Electronics University of Science and Technology of ChinaHefei 230026 China Department of Modern Physics University of Science and Technology of China Hefei 230026 China Division of Space Physics University of Science and Technology of China Hefei 230026 China CAS Key Laboratory of Geospace Environment Hefei 230026 China

Readout electronics is developed for a prototype time-of-flight(TOF) ion composition spectrometer for in situ measurement of the mass/charge distributions of major ion species from 200 to 100 ke V/e in space *** utilizing a constant fraction discriminator(CFD) and time-to-digital converter(TDC), challenging dynamic range measurements were performed with high time resolution and event rates. CFD was employed to discriminate the TOF signals from the micro-channel plate and channel electron multipliers. TDC based on the combination of counter and OR-gate delay chain was designed in a highreliability flash field programmable gate array. Owing to the non-uniformity of the delay chain, a correction algorithm based on integral nonlinearity compensation was implemented to reduce the time uncertainty. The test results showed that the electronics achieved a low timingerror of < 200 ps in the input range from 35 to 500 m V for the CFD, and a time resolution of ～550 ps with time uncertainty < 180 ps after correction and a time range of6.4 ls for the TDC. The TOF spectrum from an electron beam experiment of the impacting N_2 gas further indicated the good performance of this readout electronic.

关键词： Space plasma Ion composition analyzer Readout electronics Constant fraction discriminator Time-to-digital converter

Design of a 20-Gsps 12-bit time-interleaved analog-to-digital conversion system

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Nuclear Science and Techniques 2021年第3期32卷 30-40页

作者： Ruo-Shi Dong Lei Zhao Jia-Jun Qin Wen-Tao Zhong Yi-Chun Fan shu-bin liu Qi An State Key Laboratory of Particle Detection and Electronics University of Science and Technology of ChinaHefei 230026China Department of Modern Physics University of Science and Technology of ChinaHefei 230026China

The time-interleaved analog-to-digital conversion(TIADC)technique is an effective method for increasing the sampling rate in a waveform digitization *** this study,a 20-Gsps TIADC system was designed.A wide-bandwidth performance was achieved by optimizing the analog circuits,and a sufficient effective number of bits(ENOB)performance guaranteed using the perfect reconstruction algorithm for mismatch error *** proposed system was verified by tests,and the results indicated that a-3 dB bandwidth of 6 GHz and the ENOB performance of 8.7 bits at 1 GHz and 7.6 bits at6 GHz were successfully achieved.

关键词： Time-interleaved technique High-speed A/D conversion High bandwidth Mismatch error correction

Position-sensitive plastic scintillator detector with WLS-fiber readout

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Nuclear Science and Techniques 2018年第8期29卷 186-192页

作者： Jia-Ning Dong Yun-Long Zhang Zhi-Yong Zhang Dong liu Zi-Zong Xu Xiao-Lian Wang shu-bin liu State Key Laboratory of Particle Detection and Electronics University of Science and Technology of China Department of Physics University of Science and Technology of China Department of Modern Physics University of Science and Technology of China

In this paper,the design,construction,simulation,and performance of a position-sensitive plastic scintillator detector are *** readout of the detector uses wavelength-shifting fibers coupled with multi-anode photomultipliers(PMTs) for the x-and *** calibrating the multi-anode PMTs,a two-dimensional projection image of the square scintillator telescope hit by cosmic muons is *** performing a cosmic test with the Micromegas telescope,the position resolution of the detector was determined to reach approximately8.6 mm,which is close to the value obtained in physical simulation.

关键词：闪烁器纤维结位置塑料敏感读出 WLS 光电倍增管

Prototype of the readout electronics for the RICH PID detector in the STCF

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Nuclear Science and Techniques 2022年第6期33卷 148-160页

作者： Bao-Lin Hou Lei Zhao Jia-Jun Qin Ye-Qun Qi Jia-Ming Li Zi-Yu Yang shu-bin liu Qi An State Key Laboratory of Particle Detection and Electronics University of Science and Technology of ChinaHefei 230026China Department of Modern Physics University of Science and Technology of ChinaHefei 230026China School of Information Engineering Southwest University of Science and TechnologyMianyang 621010China

The ring imaging Cherenkov(RICH) detector for particle identification(PID) is being evaluated for the future super tau-charm facility(STCF) complex. In this work, the prototype readout electronics for the RICH PID detector is designed. The prototype RICH PID detector is based on a thick gas electron multiplier combined with a micromegas detector for Cherenkov light detection. Considering that there will be a large number(~ 690,000) of detector channels in future RICH detector, the readout electronics faces many challenges to precisely measuring time and charge information, such as reducing the noise,increasing density, and improving precision. The requirements of the readout electronics are explored, the downselection of the ASICs is made and thus a prototype readout electronics is designed and implemented. Tests are also conducted to evaluate the performance of the prototype readout electronics, and the results indicate that the time resolution is better than ~ 1 ns(RMS) when the input charge is greater than ~ 12 fC based on the APV25chip, while the time resolution is better than ~ 1 ns(RMS) at an input charge of over ~ 48 fC based on the AGET and STCF ASIC chips, and the equivalent noise charge is better than ~ 0.5 fC(RMS) @ 20 pF based on the three ASICs. The test results indicate that the prototype readout electronics design meets the requirement of the future RICH PID detector and thus provides a reference for future engineering.

关键词： Readout electronics Time measurement Charge measurement RICH PID detector STCF

Readout electronics for a high-resolution soft X-ray spectrometer based on silicon drift detector

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Nuclear Science and Techniques 2017年第1期28卷 94-99页

作者： Er-Lei Chen Chang-Qing Feng shu-bin liu Chun-Feng Ye Dong-Dong Jin Jian Lian Hui-Jun Hu State Key Laboratory of Particle Detection and Electronics University of Science and Technology of ChinaHefei 230026 China Department of Modern Physics University of Science and Technology of China Hefei 230026 China 705 Research Division Electronic Engineering InstituteHefei 230037 China Shandong Aerospace Electro-technology Institute Yantai 264670 China

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 *** 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 *** 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.

关键词： Energy and time measurement Soft X-ray detection Silicon drift detector Readout electronics