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20 papers
The Radioactive Background of the JUNO Calibration System
Rui Li, Youhui Yun, Zhangming Chen +13
The Jiangmen Underground Neutrino Observatory (JUNO) experiment is a reactor antineutrino detector employing 20 kton of ultra-pure liquid scintillator to determine the neutrino mas…
A General-Purpose and Efficient Machine-Learned Potential for SiC from Ambient to Extreme Environments
Jintong Wu, Zhuang Shao, Junlei Zhao +5
Silicon carbide (SiC) polymorphs are widely employed as nuclear materials, mechanical components, and wide-bandgap semiconductors. The rapid advancement of SiC-based applications h…
Numerical Study on Beam-based Alignment of SXFEL Undulator Lattice
Liang Xu, Nanshun Huang, Qingmin Zhang +2
The undulator line of the Shanghai soft X-ray Free-electron Laser facility (SXFEL) has very tight tolerances on the straightness of the electron beam trajectory. However, the beam…
Construction and Simulation Bias Study of The Guide Tube Calibration System for JUNO
Yuhang Guo, Kangfu Zhu, Qingmin Zhang +4
A Guide Tube Calibration System (GTCS) has been designed for the Jiangmen Underground Neutrino Observatory (JUNO), in order to measure the detector energy response near the outer r…
Measurement of the neutron beam profile of the Back-n white neutron facility at CSNS with a Micromegas detector
Binbin Qi, Yang Li, Danyang Zhu +83
The Back-n white neutron beam line, which uses back-streaming white neutrons from the spallation target of the China Spallation Neutron Source, is used for nuclear data measurement…
Design of Guide Tube Calibration System for JUNO Experiment
Yuhang Guo, Qingmin Zhang, Feiyang Zhang +3
Jiangmen Underground Neutrino Observatory (JUNO) is designed to determine the neutrino mass hierarchy using a 20 kton liquid scintillator detector. To calibrate detector boundary e…
Thermal diffusivity and specific heat capacity of linear alkylbenzene
Wenjie Wu, Guolei Zhu, Qingmin Zhang +4
We report the measurements of the thermal diffusivity and the isobaric specific heat capacity of linear alkylbenzene at about 23 with the standard atmosphere,…
Proposal of X-ray absorption spectroscopy and magnetic circular dichroism using broadband free-electron lasers
Bangjie Deng, Jiawei Yan, Qingmin Zhang +2
X-ray free-electron lasers (XFELs) have been widely used for applications such as X-ray crystallography and magnetic spin probes because of their unprecedented performance. Recentl…
Electronics of Time-of-flight Measurement for Back-n at CSNS
T. Yu, P. Cao, X. Y. Ji +68
Back-n is a white neutron experimental facility at China Spallation Neutron Source (CSNS). The time structure of the primary proton beam make it fully applicable to use TOF (time-o…
T0 Fan-out for Back-n White Neutron Facility at CSNS
X. Y. Ji, P. Cao, T. Yu +68
the main physics goal for Back-n white neutron facility at China Spallation Neutron Source (CSNS) is to measure nuclear data. The energy of neutrons is one of the most important pa…
Design of a Nondestructive Two-in-One Instrument for Measuring the Polarization and Energy Spectrum at an X-ray FEL Facility
Qingmin Zhang, Bangjie Deng, Yuanmiaoliang Chen +7
The free electron laser (FEL), as a next-generation light source, is an attractive tool in scientific frontier research because of its advantages of full coherence, ultra-short pul…
Numerical Modeling on Thermal Loading of Diamond Crystal in X-ray FEL Oscillator
Meiqi Song, Qingmin Zhang, Yuhang Guo +2
Due to high reflectivity and high resolution of X-ray pulses, diamond is one of the most popular Bragg crystals serving as the reflecting mirror and monochromator in the next ge…
Neutrino Physics with JUNO
Fengpeng An, Guangpeng An, Qi An +224
The Jiangmen Underground Neutrino Observatory (JUNO), a 20 kton multi-purpose underground liquid scintillator detector, was proposed with the determination of the neutrino mass hie…
Rayleigh scattering of linear alkylbenzene in large liquid scintillator detectors
Xiang Zhou, Qian Liu, Michael Wurm +7
Rayleigh scattering poses an intrinsic limit for the transparency of organic liquid scintillators. This work focuses on the Rayleigh scattering length of linear alkylbenzene (LAB),…
Densities, isobaric thermal expansion coefficients and isothermal compressibilities of linear alkylbenzene
Xiang Zhou, Qingmin Zhang, Qian Liu +4
We report the measurements of the densities of linear alkylbenzene at three temperatures over 4 to 23 Celsius degree with pressures up to 10 MPa. The measurements have been analyse…
Tests of a Digital Hadron Calorimeter
B. Bilki, John Butler, Ed May +6
In the context of developing a hadron calorimeter with extremely fine granularity for the application of Particle Flow Algorithms to the measurement of jet energies at a future lep…
Environmental Dependence of the Performance of Resistive Plate Chambers
Burak Bilki, John Butler, Ed May +6
This paper reports on the performance of Resistive Plate Chambers (RPCs) as function of the gas flow rate through the chambers and of environmental conditions, such as atmospheric…
Hadron Showers in a Digital Hadron Calorimeter
Burak Bilki, John Butler, Georgios Mavromanolakis +6
A small prototype of a finely granulated digital hadron calorimeter with Resistive Plate Chambers as active elements was exposed to positive pions of 1 >. 16 GeV energy from the Fe…
Measurement of Positron Showers with a Digital Hadron Calorimeter
Burak Bilki, John Butler, Ed May +6
A small prototype of a finely granulated digital hadron calorimeter with Resistive Plate Chambers as active elements was exposed to positrons of 1 . 16 GeV energy from the Fermilab…
Measurement of the Rate Capability of Resistive Plate Chambers
B. Bilki, J. Butler, E. May +6
This paper reports on detailed measurements of the performance of Resistive Plate Chambers in a proton beam with variable intensity. Short term effects, such as dead time, are stud…