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Ion accelerators and electron scattering

1993; Elsevier BV; Volume: 79; Issue: 1-4 Linguagem: Inglês

10.1016/0168-583x(93)95292-d

1872-9584

D. Mueller, Babu Chalamala, J. E. Furst, C. T. Newell, S.M. Pak, R. Scott Smith, Lei Song, Zhuo Xu, Y. Zhang, Jiaqi Zhou, D. E. Golden,

Radiation Therapy and Dosimetry

Abstract Several problems of fundamental importance to physics involving highly correlated and few body systems are being addressed in our laboratories. In particular, the breakup of three low energy charged particles is being studied using crossed beams of electrons and ions. The systems involved can consist of the excitation and dissociation of molecular ions or the resonant excitation-auto-double ionization (READI) of simple atomic ions. The use of particle accelerators in conjunction with electron beams provide a unique combination of tools for studies of this nature. We have constructed an apparatus to measure multiparameter angular correlations between reaction products following electron impact ionization of ionic targets to obtain alignment and orientation information. With molecular targets, ground and excited state potential energy diagrams may also be obtained. We will measure the momentum of all reaction products and provide a stringent experimental test of near threshold three-body theory which could lead to a general theoretical treatment for three particles interacting via a Coulomb field.