1. The CREAM calorimeter: Performance in tests and flights
- Author
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S. W. Nam, T. J. Brandt, Gabriele Bigongiari, N. H. Park, Patrick Allison, P. J. Boyle, S. P. Swordy, J. J. Beatty, S. P. Wakely, Kwangmoo Kim, S. Minnick, H. S. Ahn, J. Wu, L. Lutz, Riccardo Zei, S. L. Nutter, Maria Grazia Bagliesi, Y. S. Yoon, O. Ganel, Inkyu Park, J. H. Han, N. B. Conklin, R. Sina, Jeon Jin A, S. I. Mognet, L. M. Barbier, J. Yang, J. T. Childers, Michael DuVernois, P. S. Marrocchesi, M. H. Lee, Paolo Maestro, Eun-Suk Seo, S. Coutu, S. Y. Zinn, A. Malinine, and P. Walpole
- Subjects
Physics ,Scintillation ,high energy cosmic rays ,business.industry ,cosmic-ray calorimeter ,Detector ,chemistry.chemical_element ,Cosmic ray ,Tungsten ,Radiation length ,Calorimeter ,Photodiode ,law.invention ,Nuclear physics ,Optics ,chemistry ,law ,business ,Diode - Abstract
The Cosmic Ray Energetics And Mass (CREAM) balloon‐borne experiment, designed to directly measure cosmic‐ray particle energies from ∼1011 to ∼1015 eV, had two successful flights since December 2004, with a total duration of 70 days. The CREAM calorimeter is comprised of 20 layers of 1 radiation length (X0) tungsten interleaved with 20 active layers each made up of fifty 1 cm wide scintillating fiber ribbons. The scintillation signals are read out with multi pixel Hybrid Photo Diodes (HPDs), VA32‐HDR2/TA32C ASICs and LTC1400 ADCs. During detector construction, various tests were carried out using radioactive sources, UV‐LEDs, and particle beams. We will present results from these tests and show preliminary results from the two flights.
- Published
- 2006