Multiple ionization of noble gases by protons: ionization probabilities and post-collisional effects

Ionization and positronium formation in noble gases

Absolute measurements are presented for the positron-impact cross sections for direct ionization and positronium formation of noble gas atoms in the range of energies from threshold to 90 eV. The experiment uses a cold, trap-based positron beam and the technique of studying positron scattering in a strong magnetic field. The current data show generally good, quantitative agreement with previous...

Multiple Ionization of Rare Gases by H+ and He+ Impact

Effects of multiple ionization and intrashell coupling in L-subshell ionization by heavy ions

Gregory Lapicki,* G. A. V. Ramana Murty, G. J. Naga Raju, B. Seetharami Reddy, S. Bhuloka Reddy, and V. Vijayan Department of Physics, East Carolina University, Greenville, North Carolina 27858, USA Swami Jnanananda Laboratories for Nuclear Reasearch, Andhra University, Visakhapatnam-530 003, India Institute of Physics, Sachivalaya Marg, Bhubaneswar-751 005, India (Received 9 February 2004; pub...

Relativistic contributions to single and double core electron ionization energies of noble gases.

We have performed relativistic calculations of single and double core 1s hole states of the noble gas atoms in order to explore the relativistic corrections and their additivity to the ionization potentials. Our study unravels the interplay of progression of relaxation, dominating in the single and double ionization potentials of the light elements, versus relativistic one-electron effects and ...

Ionization of heavy atoms by polarized relativistic protons