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Preliminary results from the second flight of CREAM |
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| Authors: | P.S. Marrocchesi H.S. Ahn P. Allison M.G. Bagliesi L. Barbier J.J. Beatty G. Bigongiari T.J. Brandt J.T. Childers N.B. Conklin S. Coutu M.A. DuVernois O. Ganel J.H. Han J.A. Jeon K.C. Kim M.H. Lee L. Lutz P. Maestro A. Malinine S. Minnick S.I. Mognet S.W. Nam S. Nutter I.H. Park N.H. Park E.S. Seo R. Sina P. Walpole J. Wu J. Yang Y.S. Yoon R. Zei S.Y. Zinn |
| Affiliation: | 1. Institute for Physical Science and Technology, University of Maryland, College Park, MD 20742, USA;2. Department of Physics, University of Maryland, College Park, MD 20742, USA;3. Department of Physics, Ohio State University, Columbus, OH 43210, USA;4. Department of Physics, University of Siena and INFN, Via Roma 56, 53100 Siena, Italy;5. School of Physics and Astronomy, University of Minnesota, Minneapolis, MN 55455, USA;6. Department of Physics, Penn State University, University Park, PA 16802, USA;g Department of Physics, Ewha Womans University, Seoul 120-750, Republic of Korea;h Department of Physics, Kent State University Tuscarawas, New Philadelphia, OH 44663, USA;i Department of Physics and Geology, Northern Kentucky University, Highland Heights, KY 41099, USA;j Goddard Space Flight Center, 8800 Greenbelt Road, Greenbelt, MD 20771, USA |
| Abstract: | Launched from McMurdo (Antarctica) in December 2005, the balloon experiment CREAM (cosmic ray energetics and mass) collected about 15 million triggers during its second flight of 28 days. Redundant charge identification, by two pixelated silicon arrays and a time resolved pulse shaping technique from a scintillator system, allowed a clear signature of the primary nuclei. The energy was measured with a tungsten/SciFi calorimeter preceded by a graphite target. Preliminary results from the analysis of the data of the second flight are presented. |
| Keywords: | Cosmic ray Balloon measurements |
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