Energy losses of fast heavy structure ions in multiple collisions with diatomic molecules

Electron loss of fast projectiles in collisions with molecules

“…For such a collision system, the cross section for excitation or ionization of the projectile from states |0 to |k (provided arbitrary transition can occur in the target state) with high accuracy (error is proportional to 1/N A ) in the Glauber approximation can be written as [6,10] …”

“…Another important effect that appears in the collision of fast highly charged projectiles with molecules is the so-called collision multiplicity effect [10]. It implies that after the collision with the first atom of the target, before the relaxation, the projectile collides with the second atom being in the excited state.…”

“…It implies that after the collision with the first atom of the target, before the relaxation, the projectile collides with the second atom being in the excited state. Considerable contributions from multiplicity effects to the ionization cross section and energy losses of fast highly * matveev.victor@pomorsu.ru charged ions with diatomic molecules [10] and nanoparticles [11] were found recently.…”

“…In particular, it was shown in the Refs. [10,11] that the orientation and multiplicity effects will occur when the time interval between two subsequent collisions is less than the relaxation time. Furthermore, it is clear that the multiple collision of the projectile with target molecule atoms occurs when the direction of the projectile motion is close to the orientation of target molecule axis.…”

New-type internal target for structural ion stripping

“…The effect of collision multiplicity -which contributes significantly to the cross-sections of non-elastic processes at the relative collision velocities that greatly exceed the characteristic atomic velocity -may relate to new and interesting effects that follow high-energy ion collisions. The effect was first predicted in theoretical studies by [1][2][3]; the most convincing arguments in pure physics that are used to study the effect of collision multiplicity are based upon a consideration of collisions with nanotubes oriented along the ion velocity. It should be stressed that there is still no experimental proof of the effect; such proof would be technically difficult and would require a heavy-ion accelerator.…”