CHERCAM: the Cherenkov imager of the CREAM experiment, results in Z=1 test beams

L. Derome (1) , A. Barrau (1) , R. Bazer-Bachi (2) , O. Bourrion (1) , J. Bouvier (1) , B. Boyer (1) , M. Buénerd (1) , L. Eraud (1) , R. Foglio (1) , L. Gallin-Martel (1) , O. Ganel , C.H. Kim , M.H. Lee , L. Lutz , M. Mangin-Brinet (1) , A. Malinine , A. Menchaca-Rocha , Jean-Noël Périé (2) , A. Putze (1) , Y. Sallaz-Damaz (1) , J.P. Scordilis (1) , E.S. Seo , P. Walpole , J.H. Yoo , Y.S. Yoon , S.Y. Zinn

1 LPSC - Laboratoire de Physique Subatomique et de Cosmologie
2 CESR - Centre d'étude spatiale des rayonnements

The CREAM experiment investigates the high energy spectrum of nuclear elements from H to Fe in the cosmic ray flux up to $10^{15}$ eV, with an instrument designed to achieve individual elements separation over the whole mass range. A proximity focused Cherenkov imager, CHERCAM (CHERenkov CAMera), will provide both a good topological signature (Cherenkov ring) for downgoing Z=1 particles, and a charge independent individual element separation through the considered range of nuclear charges. It will be implemented in the forthcoming CREAM flight 3. The contribution reports on the CHERCAM main features and on the preliminary results from in-beam tests at CERN.

Domaines: Cosmologie et astrophysique extra-galactique [astro-ph.CO]; Astrophysique [astro-ph]

L. Derome, A. Barrau, R. Bazer-Bachi, O. Bourrion, J. Bouvier, et al.. CHERCAM: the Cherenkov imager of the CREAM experiment, results in Z=1 test beams. Rogelio Caballero, Juan Carlos D'Olivo, Gustavo Medina-Tanco, Lukas Nellen, Federico A. Sánchez, José F. Valdés-Galicia. 30th International Cosmic Ray Conference (ICRC'07), Jul 2007, Merida, Mexico. pp.453-456, 2008. ⟨in2p3-00180427⟩