Photo- and charged-particle-ionization of He and D[sub 2] studied with COLTRIMS

Abdallah, M. A.; Achler, Matthias; Braeuning, H.; Braeuning-Deminian, Angela; Cocke, C. L.; Czasch, Achim; Doerner, R.; Landers, A.; Mergel, V.; Osipov, T.; Prior, M.; Schmidt-Boecking, H.; Singh, M.; Weber, T.; Wolff, W.; Wolf, H. E.
February 2000
AIP Conference Proceedings;2000, Vol. 506 Issue 1, p101
Academic Journal
The COLTRIMS (COLd Target Recoil Ion Momentum Spectroscopy) approach to final-state momentum imaging is now being widely used in at least a dozen accelerator and synchrotron-radiation laboratories in the world and its use is growing rapidly. The technique combines fast imaging detectors with a supersonically cooled gas target to allow the charged particles from a collision, including both recoil ions and electrons, to be collected with extremely high efficiency and with fully measured vector momenta. It allows the investigation of correlations between ejected momentum fragments and in some cases the identification of collective modes of disintegration. When molecular targets are used, it allows the a posteriori determination of the alignment of the molecule at the time of the collision. We will discuss the use of this approach to study the single and double ionization of He and D[sub 2] by the impact of photons and of charged particles over a wide range of velocities. © 2000 American Institute of Physics.


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