X-Ray and Inner-Shell Processes
Vol. 1
J. Phys. Colloques 48 (1987) C9-157-C9-168
DOI: 10.1051/jphyscol:1987925
COLLISION EXPERIMENTS WITH ANTIPROTONS
E. UGGERHØJInstitute of Physics, University of Aarhus, DK-8000 Aarhus C, Denmark
Abstract
From the upgraded CERN antiproton ([MATH]) "factory" high intensity and low emittance [MATH]-beams in the keV-MeV region will be available for detailed atomic collision experiments. The very first investigations of [MATH] collisions in He, Ne, and Ar gases gave the most surprising results : The double ionization cross section for [MATH] on He is up to twice as high as that for protons. Similar effects are found in Ne and Ar. The x rays emitted after the [MATH] capture in atoms offers very interesting possibilities within atomic, nuclear and particle physics. Many new collision experiments are already in preparation.