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Approaching the Knee with Direct Measurements

Title
Approaching the Knee with Direct Measurements
Authors
Seo E.S.Ahn H.S.Allison P.Bagliesi M.G.Barbier L.Barrau A.Bazer-Bachi R.Beatty J.J.Bigongiari G.Boyle P.Brandt T.T.Buenerd M.Childers J.T.Conklin N.B.Coutu S.Derome L.DuVernois M.A.Ganel O.Han J.H.Jeon J.A.Kim K.C.Lee M.H.Lutz L.Malinin A.Mangin-Brinet M.Marrocchesi P.S.Maestro P.Menchaca-Rocha A.Minnick S.Mognet S.I.Nam S.W.Nutter S.Park I.H.Park N.H.Putze A.Sallaz-Damaz Y.Sina R.Swordy S.Wakely S.Walpole P.Wu J.Yang J.Yoon Y.S.Zei R.Zinn S.Y.
Ewha Authors
양종만박일흥남신우
SCOPUS Author ID
양종만scopus
Issue Date
2008
Journal Title
Nuclear Physics B - Proceedings Supplements
ISSN
0920-5632JCR Link
Citation
vol. 175-176, no. SUPPL.: COMPLETE, pp. 155 - 161
Indexed
SCOPUS scopus
Abstract
The Cosmic Ray Energetics And Mass (CREAM) experiment was designed and constructed to push spectral measurements of individual cosmic-ray nuclei from H to Fe to energies approaching the "knee" in a series of balloon flights. A cumulative exposure of 70 days was achieved during two circumpolar flights in Antarctica in 2005 and 2006. Direct measurements at the top of the atmosphere allow event-by-event determination of the incident cosmic-ray particle charge and energy. The objective is to investigate whether and how the knee structure is related to the mechanisms of particle acceleration, propagation, and confinement. The recovered payload is being refurbished for its third flight, which is scheduled for launch in December 2007. The combination of sophisticated particle detectors and long duration balloon flight capabilities now promise high quality measurements over an energy range that was not previously accessible. © 2007 Elsevier B.V. All rights reserved.
DOI
10.1016/j.nuclphysbps.2007.10.025
Appears in Collections:
자연과학대학 > 물리학전공 > Journal papers
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