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Akademický článek
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Autor:
P. Wei, Sjoerd Roorda, R. Kolarova, J.S. Forster, François Schiettekatte, Martin Chicoine, S. C. Gujrathi, J.S. Geiger, A. Paradis
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. :430-434
In the last year, EN-1, the first HVEC Tandem accelerator, has gone through a major upgrade in which the injector, charging system and tubes were replaced. In addition, the ion beam analysis facilities have been upgraded and expanded. The gas-counter
Publikováno v:
Thin Solid Films. 391:117-121
Thin films of Ce- and Li-doped alkaline earth gallates have been deposited on barium titanate substrates by RF-magnetron sputtering and post-annealed in pure argon or in a slightly reducing atmosphere of hydrogen/argon mixtures. These alkaline-earth
Autor:
Yu.L. Pivovarov, J. Remillieux, C. Cohen, Th. Stöhlker, Hans Geissel, G. Münzenberg, S. Czajkowski, S. Andriamonje, F. Nickel, Takatoshi Suzuki, N. Cue, Denis Dauvergne, T. Kandler, A. Magel, P. H. Mokler, R. Kirsch, C. Scheidenberger, Marie-Françoise Politis, J. C. Poizat, D. Schmaus, Jens Ulrik Andersen, A. L'Hoir, H. Irnich, Michel Chevallier, C. Böckstiegel, Marcel Toulemonde, J.S. Forster
Publikováno v:
Physical Review A. 59:2813-2826
mitted along a ^110& axis of a 120-mm-thick Si crystal. The emerging charge state distribution FC(qout) for well-channeled ions is governed mainly by electron impact ionization ~EII!. The corresponding EII cross sections were obtained by fitting the
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 139:120-127
In many countries, high-energy Tandem accelerators have been quite widely applied in materials science. This is due to two major types of application: (i) Various beam-induced materials modifications based on the enhanced electronic stopping associat
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. :707-712
Loss of low-Z elements (H, C, N, O, etc.) during heavy ion Elastic Recoil Detection Analysis (ERDA) has been investigated for various molecular target materials, using beams of 79Br, 127I, 197Au and 209Bi at 1.1 MeV/amu. Ceramic targets such as Nb2O5
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. :594-602
Elastic recoil detection analysis (ERDA) with very heavy ion beams such as 197 Au or 209 Bi has evolved into a universal IBA technique for simultaneous analysis of almost all elements, with essentially constant detection sensitivity. The characterist
Autor:
G.C. Ball, J.S. Forster, R.P. Sharma, Jens Ulrik Andersen, J.S. Geiger, J.A. Davies, A. Uguzzoni
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 135:56-60
Channeling dips for 7.6 MeV He ions in YBa 2 Cu 3 O 7− x have been measured for all constituents to investigate possible anomalies in thermal vibrations near the transition to superconductivity. Quantitative agreement with simulations is obtained f
Autor:
J.C. Hardy, J.S. Forster, T. K. Alexander, H. B. Mak, J. R. Leslie, G. Savard, E. Hagberg, J. G. Hykawy, I. S. Towner, I. Neeson, G.C. Ball, V.T. Koslowsky
Publikováno v:
Physical Review C. 56:135-141
The {beta} decay of {sup 37}K is studied in detail. Several new {beta} decay branches and {gamma}-ray transitions are assigned to this nucleus. The l-forbidden 0d{sub 3/2}{r_arrow}1s{sub 1/2} Gamow-Teller branch to the first excited state in {sup 37}