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Article
Application of deep learning methods combined with physical background in wide field of view imaging atmospheric Cherenkov telescopes
The High Altitude Detection of Astronomical Radiation (HADAR) experiment, which was constructed in Tibet, China, combines the wide-angle advantages of traditional EAS array detectors with the high-sensitivity ...
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Article
Nondestructive technique for identifying nuclides using neutron resonance transmission analysis at CSNS Back-n
Nondestructive and noninvasive neutron assays are essential applications of neutron techniques. Neutron resonance transmission analysis (NRTA) is a powerful nondestructive method for investigating the elementa...
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Article
Measurement of the 232Th(n,f) cross section in the 1–200 MeV range at the CSNS Back-n
The 232Th(n,f) cross section is very important in basic nuclear physics and applications based on the Th/U fuel cycle. Using the time-of-flight method and a multi-cell fast-fission ionization chamber, a novel mea...
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Article
Five-year in-orbit background of Insight-HXMT
We present the five-year in-orbit background evolution of Insight-HXMT since the launch, as well as the effects of the background model in data analysis.
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Article
Afterpulse measurement of JUNO 20-inch PMTs
In this study, we present the large photomultiplier tube (PMT) afterpulse measurement results obtained from the Jiangmen underground neutrino observatory (JUNO) experiment. A total of 11 dynode-PMTs (R12860) f...
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Article
High-accuracy measurement of Compton scattering in germanium for dark matter searches
Compton scattering with bound electrons contributes to a significant atomic effect in low-momentum transfer, yielding background structures in direct light dark matter searches as well as low-energy rare event...
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Article
Identification of anomalous fast bulk events in a p-type point-contact germanium detector
The ultralow detection threshold, ultralow intrinsic background, and excellent energy resolution of p-type point-contact germanium detectors are important for rare-event searches, in particular for the detection ...
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Article
Single-block measurement for the cryogenic permanent magnet undulator sorting
The magnet sorting is a standard step in the undulator fabrication procedure. The shortest undulators period used in the High Energy Photon Source (HEPS) is only 12 mm. To the short period undulator, the sorti...
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Article
Back-n white neutron source at CSNS and its applications
Back-streaming neutrons from the spallation target of the China Spallation Neutron Source (CSNS) that emit through the incoming proton channel were exploited to build a white neutron beam facility (the so-call...
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Article
100 TeV diffuse \(\gamma \) -rays observation by YangBa**g Hybrid Array
Cosmic rays up to PeV energy are believed to be generated in our galaxy. \(\gamma \) γ -rays at 100 TeV energies are important probe to identify PeVtrons. Besides, \(\gamma \) γ -rays contain additional inf...
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Article
Design and offline testing of a resonant stripline beam position monitor for the IRFEL project at NSRL
A 476 MHz resonant stripline beam position monitor (BPM) is planned to be installed in an infrared free electron laser machine at National Synchrotron Radiation Laboratory. This type of BPM was developed based...
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Article
Design of a MAPS readout electronics prototype for BESIII inner tracker
The spatial resolution and the reconstruction efficiency of the main drift chamber of the Bei**g Spectrometer III has degraded after more than nine years of operation. An improved new inner drift chamber has ...
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Article
Measurement of the neutron total cross section of carbon at the Back-n white neutron beam of CSNS
To verify the performance of the neutron total cross-sectional spectrometer, the neutron total cross section of carbon is initially measured in the energy range of 1 eV to 20 MeV using the time-of-flight metho...
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Article
Open AccessScale invariance vs. conformal invariance: holographic two-point functions in Horndeski gravity
We consider Einstein-Horndeski gravity with a negative bare constant as a holographic model to investigate whether a scale invariant quantum field theory can exist without the full conformal invariance. Einste...
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Article
Influence of cryogenic permanent magnet undulator motion error on magnetic field error and radiation intensity loss
A cryogenic permanent magnet undulator prototype designed for Chinese High Energy Photon Source Test Facility (HEPS-TF) at Institute of High Energy Physics is constructed and now commissioning. Motion precisio...
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Article
Magnetic field strength and temperature-dependent calibration system of Hall probe for the HEPS-TF cryogenic permanent magnet undulator
High energy photon source test facility (HEPS-TF) has manufactured a three-dimensional Hall probe to measure the cryogenic permanent magnet undulator (CPMU). Since the operating environment of the CPMU is the ...
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Article
Hall sensor angle error and relative position calibrations for cryogenic permanent magnet undulator of high energy photon source test facility (HEPS-TF)
A new in-vacuum three-dimensional Hall probe magnetic measurement system is under fabrication for characterizing the magnetic performance of the Cryogenic Permanent Magnet Undulator (CPMU). In order to fit the...