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Updated: Aug 19, 2026

Visualization of Low-Level Gamma Radiation Sources Using a Low-Cost, High-Sensitivity, Omnidirectional Compton Camera
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New measurement of the cosmic-ray positron fraction from 5 to 15 GeV

J J Beatty1, A Bhattacharyya, C Bower

  • 1Department of Physics, Pennsylvania State University, University Park, PA 16802, USA.

Physical Review Letters
|February 9, 2005
PubMed

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