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Volume 301 - 35th International Cosmic Ray Conference (ICRC2017) - Session Cosmic-Ray Direct. CRD- instrumentation direct
Performance of the BACCUS Transition Radiation Detector
N. Picot-Clemente,* Y. Amare, T. Anderson, D. Angelaszek, N. Anthony, K. Cheryian, G.H. Choi, M. Copley, S. Coutu, L. Derome, L. Eraud, L. Hagenau, J.H. Han, H.G. Huh, S. Im, J.A. Jeon, S. Jeong, K.C. Kim, M.H. Kim, H.Y. Lee, J. Lee, M.H. Lee, J. Liang, J.T. Link, L. Lu, L. Lutz, A. Menchaca-Rocha, T. Mernik, J.W. Mitchell, S.I. Mognet, S. Morton, M. Nester, S. Nutter, O. Ofoha, I.H. Park, R. Quinn, E.S. Seo, J.R. Smith, P. Walpole, R.P. Weinmann, J. Wu, Y.S. Yoon
*corresponding author
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Pre-published on: 2017 August 16
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Abstract
The Boron And Carbon Cosmic rays in the Upper Stratosphere (BACCUS) balloon-borne exper-
iment flew for 30 days over Antarctica in December 2016. It is the successor of the CREAM
balloon program in Antarctica which recorded a total cumulative exposure of 161 days. BAC-
CUS is primarily aimed to measure cosmic-ray boron and carbon fluxes at the highest energies
reachable with a balloon or satellite experiment, in order to provide essential information for a
better understanding of cosmic-ray propagation in the Galaxy. The payload is made of multiple
particle physics detectors which measure the charge up to Z=26 and energy of incident particles
from a few hundred GeV to a few PeV. The newly designed Transition Radiation Detector (TRD)
measures signals that are a function of the charge and Lorentz factor. In April 2016, BACCUS
was taken to CERN in its flight configuration to characterize its detectors’ response to beams of
electrons and pions. The performance of the TRD using beam test data are reported in this paper.
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