Kinetic Energy Release Distributions in the Fragmentation of O2 Molecules Induced by Fast Highly Charged Ions

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Published under licence by IOP Publishing Ltd
, , Citation U Werner et al 2001 Phys. Scr. 2001 244 DOI 10.1238/Physica.Topical.092a00244

1402-4896/2001/T92/244

Abstract

We report the first measurement of the kinetic energy release distributions of multiply charged oxygen ions produced in collisions of O2 molecules with 5.9 MeV/amu Xe18+ and Xe43+ ions. The slow Oq+ ions generated in the collision are detected in coincidence by a time- and position sensitive multi- particle detector. An analysis of correlated momenta of molecular fragments provides the kinetic energy release distribution for various reaction pairs O2 → Oq1+Oq2+ with a total charge up to q = q1 + q2 = 11. The position of the maximum and the width of the distributions are well described by the recently suggested Average Bunch Statistical (ABS) model.

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10.1238/Physica.Topical.092a00244