TY - JOUR
T1 - Cosmic ray energy spectrum in the 2nd knee region measured by the TALE-SD array
AU - Telescope Array Collaboration
AU - Sato, Koki
AU - Abbasi, R. U.
AU - Abe, M.
AU - Abu-Zayyad, T.
AU - Allen, M.
AU - Arai, Y.
AU - Arimura, Y.
AU - Barcikowski, E.
AU - Belz, J. W.
AU - Bergman, D. R.
AU - Blake, S. A.
AU - Buckland, I.
AU - Cady, R.
AU - Cheon, B. G.
AU - Chiba, J.
AU - Chikawa, M.
AU - Fujii, T.
AU - Fujisue, K.
AU - Fujita, K.
AU - Fujiwara, R.
AU - Fukushima, M.
AU - Fukushima, R.
AU - Furlich, G.
AU - Gonzalez, R.
AU - Hanlon, W.
AU - Hayashi, M.
AU - Hayashida, N.
AU - Hibino, K.
AU - Higuchi, R.
AU - Honda, K.
AU - Ikeda, D.
AU - Inadomi, T.
AU - Inoue, N.
AU - Ishii, T.
AU - Ito, H.
AU - Ivanov, D.
AU - Iwakura, H.
AU - Iwasaki, A.
AU - Jeong, H. M.
AU - Jeong, S.
AU - Jui, C. C.H.
AU - Kadota, K.
AU - Kakimoto, F.
AU - Kalashev, O.
AU - Kasahara, K.
AU - Kasami, S.
AU - Kawai, H.
AU - Kawakami, S.
AU - Kawana, S.
AU - Kwon, Y. J.
N1 - Publisher Copyright:
© Copyright owned by the author(s).
PY - 2022/3/18
Y1 - 2022/3/18
N2 - The Telescope Array Low energy Extension (TALE) experiment in Utah, U.S.A., consists of 10 atmospheric fluorescence telescopes and 80 Surface Detectors (SDs) spread over an area of 21 km2. The SD array consists of 40 SDs at 400 m spacing and 40 SDs at 600 m spacing. The TALE-SD was completed in February 2018 and has been in steady operation since then, triggering at a rate of about 30 air shower events in 10 minutes. We have developed the software to measure the energy spectrum of cosmic rays from the data obtained by TALE-SD. The performance of the software was evaluated by using air shower events generated by Monte Carlo simulation. We estimate that when the energy of the primary cosmic ray is 1018.0 eV, the accuracy of energy determination is 20%, the accuracy of arrival direction determination is 1.5°, and the aperture is 16 km2 sr. We also compared the MC and Data to see if they were consistent. In this presentation, we will report these results.
AB - The Telescope Array Low energy Extension (TALE) experiment in Utah, U.S.A., consists of 10 atmospheric fluorescence telescopes and 80 Surface Detectors (SDs) spread over an area of 21 km2. The SD array consists of 40 SDs at 400 m spacing and 40 SDs at 600 m spacing. The TALE-SD was completed in February 2018 and has been in steady operation since then, triggering at a rate of about 30 air shower events in 10 minutes. We have developed the software to measure the energy spectrum of cosmic rays from the data obtained by TALE-SD. The performance of the software was evaluated by using air shower events generated by Monte Carlo simulation. We estimate that when the energy of the primary cosmic ray is 1018.0 eV, the accuracy of energy determination is 20%, the accuracy of arrival direction determination is 1.5°, and the aperture is 16 km2 sr. We also compared the MC and Data to see if they were consistent. In this presentation, we will report these results.
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M3 - Conference article
AN - SCOPUS:85145007362
SN - 1824-8039
VL - 395
JO - Proceedings of Science
JF - Proceedings of Science
M1 - 362
T2 - 37th International Cosmic Ray Conference, ICRC 2021
Y2 - 12 July 2021 through 23 July 2021
ER -