| Autor: |
Lamy, Th., Lamboley, G., Hitz, D., Andrä, H. J. |
| Předmět: |
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| Zdroj: |
Review of Scientific Instruments; Jan1990, Vol. 61 Issue 1, p336, 5p |
| Abstrakt: |
A new Lagrippa facility has been constructed for the production of high quality beams of multicharged ions with energies of 1-25 q keV. The machine is based on the new 10 GHz, Caprice ECR-ion source which operates partially on the second harmonic. A new extraction optics for ECR sources with variable electrode distance has been employed which allows high currents at an emittance of less than 40 π mm mrad (corresponding to a beam spot ora diameter less than 4 mm with a divergence ≤ ± 20 mrad). Together with an acceleration-separation-deceleration scheme this machine furnishes beam currents of 11 µA O[sup 7+] at 15 q keV, 80 pA Ar[sup 17+] at 20 q keV, 6 pA Ar[sup 17+] at 20 q keV, and a significant current of Kr[sup 31+]. Further details of the conception of the machine, its performance, and the first experiments up to June 1989 will be presented. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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