| Autor: |
Trassl, R., Bra¨uning, H., Diemar, K. v., Melchert, F., Salzborn, E., Hofmann, I. |
| Předmět: |
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| Zdroj: |
AIP Conference Proceedings; 2000, Vol. 547 Issue 1, p157, 10p |
| Abstrakt: |
Collisions between ions belong to the elementary processes in all kinds of plasmas in astrophysical objects as well as in laboratory discharges. In recent years, the impetus for accurate cross section data for such collisions has become greater due to research in thermonuclear fusion using either magnetic or inertial confinement. While the data base for charge-exchange collisions between singly-charged ions is still rather small, practically no data at all exist for collisions between multiply-charged ions. Using the Giessen ion-ion crossed-beams facility, we have systematically studied electron capture processes in keV-collisions between (i) Li-like ions and He[sup 2+] ions (in this paper we focus on the collision system C[sup 3+] + He[sup 2+]) and (ii) homonuclear heavy ions X[sup 4+] + X[sup 4+], with X = Xe, Pb, Bi. While reactions (i) provide an ideal testing ground for different theoretical models, reactions (ii) are of applied interest in heavy ion inertial fusion scenarios and for the designing of storage rings where losses due to intra-beam ion-ion collisions can be estimated from the measured cross sections. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
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