A5001359524- Astrophysics and Cosmic Phenomena
- Dark Matter and Cosmic Phenomena
- Particle Detector Development and Performance
- Neutrino Physics Research
- Radiation Detection and Scintillator Technologies
- Geophysics and Gravity Measurements
- Advanced Manufacturing and Logistics Optimization
- Gamma-ray bursts and supernovae
Fujian Electric Power Survey & Design Institute
2023
Shanghai Astronomical Observatory
2021
Institute of High Energy Physics
2020-2021
Chinese Academy of Sciences
2020-2021
University of Chinese Academy of Sciences
2021
Nanjing University
2020
Abstract The first Water Cherenkov detector of the LHAASO experiment (WCDA-1) has been operating since April 2019. data for year have analyzed to test its performance by observing Crab Nebula as a standard candle. WCDA-1 achieves sensitivity 65 mCU per year, with statistical threshold 5 . To accomplish this, 97.7% cosmic-ray background rejection rate around 1 TeV and 99.8% 6 an approximate photon acceptance 50% is achieved after applying algorithm separate gamma-induced showers. angular...
The Water Cherenkov Detector Array (WCDA) is a major component of the Large High Altitude Air Shower Observatory (LHAASO), new generation cosmic-ray experiment with unprecedented sensitivity, currently under construction. WCDA aimed at study TeV $\gamma$-rays. In order to evaluate prospects searching for $\gamma$-ray sources WCDA, we present in this paper projection one-year sensitivity from TeVCat (footnote: http://tevcat.uchicago.edu) using an all-sky approach. Out 128 observable up zenith...
Water Cherenkov detector array (WCDA) is one of the key parts Large High Altitude Air Shower Observatory (LHAASO), construction which was completed by end 2020. The WCDA covers a 78 000-m <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sup> area and there exist 3120 large size photomultiplier tubes (PMTs) in three ponds: 8-in PMTs are used pond No. 1 20-in ponds 2 3. front-end electronics (FEE) system based on multigain measurement technique...
Abstract:In view of the current diversity and structural complexity protective appliances, operation inspection part protection electrical equipment action characteristics selective cooperation calibration, can only rely on coordination test several typical branches or internal data appliance manufacturer to verify, lack comprehensive, accurate, analysis verification system, not ensure safe stable power grid control equipment, paper proposes a calibration system for appliances based digital...