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An Imaging Calorimeter for Access-Concept StudyA mission concept study to define the "Advanced Cosmic-ray Composition Experiment for Space Station (ACCESS)" was sponsored by the National Aeronautics and Space Administration (NASA). The ACCESS instrument complement contains a transition radiation detector and an ionization calorimeter to measure tile spectrum of protons, helium, and heavier nuclei up to approximately 10(exp 15) eV to search for the limit of S/N shock wave acceleration, or evidence for other explanations of the spectra. Several calorimeter configurations have been studied, including the "baseline" totally active bismuth germanate instrument and sampling calorimeters utilizing various detectors. The Imaging Calorimeter for ACCESS (ICA) concept comprises a carbon target and a calorimeter using a high atomic number absorber sampled approximately each radiation length (rl) by thin scintillating fiber (SCIFI) detectors. The main features and options of the ICA instrument configuration are described in this paper. Since direct calibration is not possible over most of the energy range, the best approach must be decided from simulations of calorimeter performance extrapolated from CERN calibrations at 0.375 TeV. This paper presents results from the ICA simulations study.
Document ID
20020022513
Acquisition Source
Marshall Space Flight Center
Document Type
Conference Paper
Authors
Parnell, T. A.
(Alabama Univ. Huntsville, AL United States)
Adams, James H.
(NASA Marshall Space Flight Center Huntsville, AL United States)
Binns, R. W.
(Washington Univ. Saint Louis, MO United States)
Christl, M. J.
(NASA Marshall Space Flight Center Huntsville, AL United States)
Derrickson, J. H.
(NASA Marshall Space Flight Center Huntsville, AL United States)
Fountain, W. F.
(NASA Marshall Space Flight Center Huntsville, AL United States)
Howell, L. W.
(NASA Marshall Space Flight Center Huntsville, AL United States)
Gregory, J. C.
(Alabama Univ. Huntsville, AL United States)
Hink, P. L.
(Washington Univ. Saint Louis, MO United States)
Israel, M. H.
(Washington Univ. Saint Louis, MO United States)
Whitaker, Ann F.
Date Acquired
August 20, 2013
Publication Date
January 1, 2001
Subject Category
Instrumentation And Photography
Meeting Information
Meeting: 27th International Cosmic Ray Conference
Location: Hamburg
Country: Germany
Start Date: August 8, 2001
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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