Abstract
After nearly a century since their discovery, much is still uncertain about cosmic rays, including their source, acceleration mechanism, and propagation. Direct measurement of cosmic-ray elemental spectra in the critical energy range of 1012–1015 eV offers a promising avenue to answering these questions. The Cosmic Ray Energetics And Mass (CREAM) experiment was launched from McMurdo Station, Antarctica, under a NASA research balloon on December 16, 2004. Floating for nearly 42 days at altitudes between 36 and 39 km, CREAM collected over 4 × 107 events. Preliminary results show great promise for this dataset. CREAM-II launched on December 16, 2005 and ew for 28 days. A refurbished CREAM is planned to y again in 2007. This presentation will examine the experimental context of CREAM, describe the detector, and show preliminary results from accelerator beam tests and the first ight.
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References
P.O. Lagage and C.J. Cesarsky: Astronomy & Astrophysics 118 (1983) 223.
D.J. Bird et al. (Fly’s Eye Collaboration): Astrophys. J. 441 (1995) 144.
N. Hayashida et al. (AGASA Collaboration): Phys. Rev. Lett. 73 (1994) 3491.
M. Takeda et al. (AGASA Collaboration): Phys. Rev. Lett. 81/6 (1998) 1163.
P.L. Biermann: Astrophysics and Space Sciences. 264 (1999) 423.
S.P. Swordy: Space Science Reviews, 99/1–4 (2001) 85.
H. Schieler et al. (KASKADE Collaboration): in Proc. of SPIE, Particle Astrophysics Instrumentation 4858 (Ed. P.W. Gorham). The International Society for Optical Engineering, Bellingham, Washington, USA, 2003, 41.
T. Antoni et al. (KASKADE Collaboration): Astroparticle Physics 24 (2005) 1.
T. Yoshida et al. (BESS Collaboration): Adv. Sp. Res. 33 (2004) 1755.
J. Casaus et al. (AM 02 Collaboration): in Proc. of 28th ICRC (Ed. T. Kajita, Y. Asaoka, A. Kawachi, Y. Matsubara and M. Sasaki). Universal Academy Press, Tokyo, 2003, 2149.
N. Chiba et al.: Nucl. Instr. & Meth. A311/1–2 (1992) 338.
T. Abu-Zayyad et al. (HiRes Collaboration): in Proc. of 26th ICRC} (Ed. D. Kieda, M. Salamon & B. Dingus}), Salt Lake City, 5}, 1999}
A. Etchegoyen: Astrophysics and Space Sciences 290 (2004) 379.
M. Teshima et al. (EUSO Collaboration): in Proc. of 28th ICRC (Ed. T. Kajita, Y. Asaoka, A. Kawachi, Y. Matsubara and M. Sasaki). Universal Academy Press, Tokyo, 2003, 1069.
F.W. Stecker et al. (OWL Collaboration): Nucl. Phys. B 136 (2004) 433.
T.A. Parnell et al., (JACEE Collaboration): Adv. Sp. Res. 9 (1989) 45.
T. G. Guzik et al., (ATIC Collaboration): Adv. Sp. Res. 33 (2004) 1763.
E.S. Seo et al. (CREAM Collaboration): Adv. Sp. Res. 33 (2004) 1777.
F. Gahbauer et al. (TRACER Collboration): Astrophysics Journal 607 (2004) 333.
E.S. Seo et al. (ATIC Collaboration): in Proc. of SPIE, Gamma Ray and Cosmic Ray Detectors Techniques and Missions, 2806 (Ed. B.D. Ramsey and T.A. Parnell). The International Society for Optical Engineering, Bellingham, Washington, USA, 1996, 134.
E.S. Seo et al. (CREAM Collaboration): in Proc. of 29th ICRC (Ed. B.S. Acharya, S. Gupta, P. Jagadeesan, A. Jain, S. Karthikeyan, S. Morris and S. Tonwar), Pune, 10, 2005, 185.
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Ganel, O., Ahn, H.S., Allison, P. et al. CREAM-Pushing the high energy frontier of directly measured cosmic rays. Czech J Phys 56 (Suppl 1), A301–A312 (2006). https://doi.org/10.1007/s10582-006-0164-9
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DOI: https://doi.org/10.1007/s10582-006-0164-9