RECOIL-ION MOMENTUM SPECTROSCOPY

[摘要] Within recent years the spectroscopy of the target recoil momentum in distant ion-atom collisions has been established as a third, independent and valuable method of target spectroscopy besides the classical measurement of ejected electrons and X-rays. For a large set of collision systems, e.g. for fast and heavy projectiles impinging on gaseous targets, the determination of the recoil-ion transverse momentum provides the only possibility to obtain differential excitation or ionisation cross sections. Moreover, since the requirements on the ion beam (emittance, focussing) are comparably low even for high precision measurements, experiments using exotic beams like antiprotons can be envisaged. The present stage of development of recoil-ion momentum spectroscopy (RIMS) is illustrated, its special ability to obtain information on many-body interactions in an ion-atom collision is demonstrated and the future potential of the method as to the momentum resolution, the solid angle and possible applications in many-particle coincidence measurements is outlined.

[发布日期] 1991-10-01

[效力级别]  Proceedings Paper