Absolute calibration of LHAASO WFCTA camera based on LED

dc.contributor.authorAharonian F.
dc.contributor.authorAn Q.
dc.contributor.authorAxikegu
dc.contributor.authorBai L.X.
dc.contributor.authorBai Y.X.
dc.contributor.authorBao Y.W.
dc.contributor.authorBastieri D.
dc.contributor.authorBi X.J.
dc.contributor.authorBi Y.J.
dc.contributor.authorCai H.
dc.contributor.authorCai J.T.
dc.contributor.authorCao Z.
dc.contributor.authorCao Z.
dc.contributor.authorChang J.
dc.contributor.authorChang J.F.
dc.contributor.authorChen B.M.
dc.contributor.authorChen E.S.
dc.contributor.authorChen J.
dc.contributor.authorChen L.
dc.contributor.authorChen L.
dc.contributor.authorChen M.J.
dc.contributor.authorChen M.L.
dc.contributor.authorChen Q.H.
dc.contributor.authorChen S.H.
dc.contributor.authorChen S.Z.
dc.contributor.authorChen T.L.
dc.contributor.authorChen X.L.
dc.contributor.authorChen Y.
dc.contributor.authorCheng N.
dc.contributor.authorCheng Y.D.
dc.contributor.authorCui S.W.
dc.contributor.authorCui X.H.
dc.contributor.authorCui Y.D.
dc.contributor.authorDai B.Z.
dc.contributor.authorDai H.L.
dc.contributor.authorDai Z.G.
dc.contributor.authorDanzengluobu
dc.contributor.authordella Volpe D.
dc.contributor.authorPiazzoli B.D.E.
dc.contributor.authorDong X.J.
dc.contributor.authorDuan K.K.
dc.contributor.authorFan J.H.
dc.contributor.authorFan Y.Z.
dc.contributor.authorFan Z.X.
dc.contributor.authorFang J.
dc.contributor.authorFang K.
dc.contributor.authorFeng C.F.
dc.contributor.authorFeng L.
dc.contributor.authorFeng S.H.
dc.contributor.authorFeng Y.L.
dc.contributor.authorFu Y.T.
dc.contributor.authorGan H.Y.
dc.contributor.authorGao B.
dc.contributor.authorGao C.D.
dc.contributor.authorGao L.Q.
dc.contributor.authorGao Q.
dc.contributor.authorGao W.
dc.contributor.authorGe M.M.
dc.contributor.authorGeng L.S.
dc.contributor.authorGong G.H.
dc.contributor.authorGou Q.B.
dc.contributor.authorGu M.H.
dc.contributor.authorGuo F.L.
dc.contributor.authorGuo J.G.
dc.contributor.authorGuo X.L.
dc.contributor.authorGuo Y.Q.
dc.contributor.authorGuo Y.Y.
dc.contributor.authorHan Y.A.
dc.contributor.authorHe H.H.
dc.contributor.authorHe H.N.
dc.contributor.authorHe J.C.
dc.contributor.authorHe S.L.
dc.contributor.authorHe X.B.
dc.contributor.authorHe Y.
dc.contributor.authorHeller M.
dc.contributor.authorHor Y.K.
dc.contributor.authorHou C.
dc.contributor.authorHu H.B.
dc.contributor.authorHu S.
dc.contributor.authorHu S.C.
dc.contributor.authorHu X.J.
dc.contributor.authorHuang D.H.
dc.contributor.authorHuang Q.L.
dc.contributor.authorHuang W.H.
dc.contributor.authorHuang X.T.
dc.contributor.authorHuang X.Y.
dc.contributor.authorHuang Z.C.
dc.contributor.authorJi F.
dc.contributor.authorJi X.L.
dc.contributor.authorJia H.Y.
dc.contributor.authorJiang K.
dc.contributor.authorJiang Z.J.
dc.contributor.authorJin C.
dc.contributor.authorKe T.
dc.contributor.authorKuleshov D.
dc.contributor.authorLevochkin K.
dc.contributor.authorLi B.B.
dc.contributor.authorLi C.
dc.contributor.authorLi C.
dc.contributor.authorLi F.
dc.contributor.otherMahidol University
dc.date.accessioned2023-06-18T18:17:07Z
dc.date.available2023-06-18T18:17:07Z
dc.date.issued2022-01-01
dc.description.abstractThe main scientific goal of the LHAASO WFCTA experiment is to measure the cosmic ray energy spectra and composition from 10 TeV to 1 EeV. Cherenkov photons in the extensive air shower measured by the SiPM camera of Cherenkov telescopes can be used to reconstruct the cosmic ray energy. The absolute calibration of the camera is a crucial step to achieve the accurate measurement of the cosmic ray energy spectrum. A multi-wavelength cylindrical illuminator based on LEDs is developed and mounted inside the telescope to calibrate and monitor the camera, and the illuminator's stability is better than 0.5% under the temperature variation from -26 to 26 °C. A portable probe with a single photoelectron resolution of 21.6% is developed. After calibration by National Institute of Metrology, China (NIM), the probe is taken to the LHAASO site to measure the absolute photon density of the cylindrical illuminator inside the telescope. Based on the illuminator with known photon density, the photon conversion factor of the camera can be calibrated, and the overall calibration uncertainty is less than 2.6%.
dc.identifier.citationNuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment Vol.1021 (2022)
dc.identifier.doi10.1016/j.nima.2021.165824
dc.identifier.issn01689002
dc.identifier.scopus2-s2.0-85119952163
dc.identifier.urihttps://repository.li.mahidol.ac.th/handle/20.500.14594/86933
dc.rights.holderSCOPUS
dc.subjectPhysics and Astronomy
dc.titleAbsolute calibration of LHAASO WFCTA camera based on LED
dc.typeArticle
mu.datasource.scopushttps://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85119952163&origin=inward
oaire.citation.titleNuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
oaire.citation.volume1021
oairecerif.author.affiliationState Key Laboratory of Particle Detection & Electronics
oairecerif.author.affiliationNanjing University
oairecerif.author.affiliationShanghai Astronomical Observatory Chinese Academy of Sciences
oairecerif.author.affiliationInstitute for Nuclear Research of the Russian Academy of Sciences
oairecerif.author.affiliationShandong University
oairecerif.author.affiliationWuhan University
oairecerif.author.affiliationYunnan University
oairecerif.author.affiliationInstitute of High Energy Physics Chinese Academy of Science
oairecerif.author.affiliationUniversity of Chinese Academy of Sciences
oairecerif.author.affiliationGuangzhou University
oairecerif.author.affiliationTsinghua University
oairecerif.author.affiliationSun Yat-Sen University
oairecerif.author.affiliationUniversity of Science and Technology of China
oairecerif.author.affiliationZhengzhou University
oairecerif.author.affiliationInstitiúid Ard-Lénn Bhaile Átha Cliath
oairecerif.author.affiliationUniversità degli Studi di Napoli Federico II
oairecerif.author.affiliationSichuan University
oairecerif.author.affiliationNational Astronomical Observatories Chinese Academy of Sciences
oairecerif.author.affiliationMax-Planck-Institut für Kernphysik
oairecerif.author.affiliationNational Institute of Metrology China
oairecerif.author.affiliationSouthwest Jiaotong University
oairecerif.author.affiliationPurple Mountain Observatory Chinese Academy of Sciences
oairecerif.author.affiliationUniversité de Genève
oairecerif.author.affiliationHebei Normal University
oairecerif.author.affiliationTibet University
oairecerif.author.affiliationTIANFU Cosmic Ray Research Center

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