Comparison Of Quantum Mechanical And Classical Trajectory Calculations Of Cross Sections For Ion-Atom Impact Ionization of Negative - And Positive -Ions For Heavy Ion Fusion Applications

Kaganovich, Igor D. ; Startsev, Edward A. ; Davidson, Ronald C.

Princeton University. Plasma Physics Laboratory.

关键词: Nitrogen;    Ionization Potential;    70 Plasma Physics And Fusion Technology;    Born Approximation;    Quantum Mechanics;   

DOI  :  10.2172/814013
RP-ID  :  PPPL-3812
RP-ID  :  AC02-76CH03073
RP-ID  :  814013

美国|英语

来源: UNT Digital Library

【 摘 要 】

Stripping cross sections in nitrogen have been calculated using the classical trajectory approximation and the Born approximation of quantum mechanics for the outer shell electrons of 3.2GeV I{sup -} and Cs{sup +} ions. A large difference in cross section, up to a factor of six, calculated in quantum mechanics and classical mechanics, has been obtained. Because at such high velocities the Born approximation is well validated, the classical trajectory approach fails to correctly predict the stripping cross sections at high energies for electron orbitals with low ionization potential.