Cosmic Rays

Dr. Martin Israel
Washington University

Cosmic Rays are high-energy particles that originate in deep space and penetrate earth's atmosphere. They come from all directions and their origin is not well known, but what is known about them comes from decades of sampling them from the ground, air and in space.

Dr. Martin Israel has been researching Cosmic Rays since 1968 using balloon and satellite-borne instrumentation, including the balloon borne Trans-Iron Galactic Element Recorder (TIGER) experiment in 2002 and the Cosmic Ray Isotope Spectrometer (CRIS) on the Advanced Composition Explorer (ACE) spacecraft, stationed at the L1 Lagrange point on the Earth-Sun system.