Status and recent results from the CREAM experiment
The Cosmic Ray Energetics And Mass (CREAM) balloon-borne experiment has accumulated ∼156 days of exposure during five successful flights over Antarctica. Energy measurements are made with a transition radiation detector and an ionization calorimeter. Charge measurements are made with timing scintill...
Published in: | Cosmic Rays for Particle and Astroparticle Physics |
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Main Authors: | , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , |
Other Authors: | , , , , |
Format: | Conference Object |
Language: | English |
Published: |
WORLD SCIENTIFIC PUBLISHER
2011
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Subjects: | |
Online Access: | http://hdl.handle.net/11365/44112 https://doi.org/10.1142/9789814329033_0035 |
Summary: | The Cosmic Ray Energetics And Mass (CREAM) balloon-borne experiment has accumulated ∼156 days of exposure during five successful flights over Antarctica. Energy measurements are made with a transition radiation detector and an ionization calorimeter. Charge measurements are made with timing scintillators, pixelated Si, and Cherenkov detectors to minimize the effect of backscattered particles. High energy cosmic-ray data were collected over a wide energy range from ∼ 10^10 to ∼ 10^15 eV at an average altitude of ∼38.5 km, with ∼3.9 g/cm^2 atmospheric overburden. All cosmic-ray elements from protons (Z = 1) to iron nuclei (Z = 26) are separated with excellent charge resolution. The instrument performance, results from the ongoing data analysis, and their implications on cosmic-ray origin, acceleration and propagation are discussed. |
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