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Autor:
Dario Marcelo Mitnik, M. S. Pindzola, R. Becker, Alfred Müller, M. Kleinod, J. Linkemann, Alejandro Frank, W. Spies, S. Ricz, P. H. Mokler, L. Empacher, N. R. Badnell, N. Angert, Francis Robicheaux, O. Uwira
Publikováno v:
Physical Review A. 57:4365-4372
Dielectronic recombination cross sections for U{sup 28+} are calculated in the distorted-wave approximation and compared with measurements obtained using an electron-ion merged beams apparatus. Although the experiment covered energies between 0 and 4
Publikováno v:
Hyperfine Interactions. 115:193-200
A special problem in atomic physics research with highly charged ions is to prepare ions with a unique charge state inside of EBIS or EBIT devices. On the other hand, there are great losses resulting from the transport of the ions from the source to
Autor:
Stefan Schippers, M. Kleinod, S. Schennach, R. Becker, P. H. Mokler, M. Wagner, Alejandro Frank, Alfred Müller, A. Hoffknecht, O. Uwira, W. Spies, N. Angert
Publikováno v:
Hyperfine Interactions. 114:257-261
The origin of the widely observed enhancement of rates for electron-ion recombination at very low energies is still unknown. We investigated the recombination of Au25+ with free electrons in a merged-beams experiment at the UNILAC accelerator of the
Publikováno v:
Physica Scripta. :151-156
Electron beams with high current density are of great interest in Electron Beam Ion Sources (EBIS and EBIT). The conventional way to yield current densities in the 103 A/cm2 range uses high beam compression in an increasing magnetic field. Temperatur
Publikováno v:
Physica Scripta. :107-112
An electron beam ion source (EBIS) with normal conducting solenoid has been constructed to study short ion extraction of about 4 μs. The aim is to inject fully stripped light ions like C6+ and O8+ in a single turn into a medically dedicated synchrot
Autor:
M. Kleinod, Oliver Kester, J Schneider, B. Zipfel, R. Rao, A. Lakatos, R. Becker, M. Mücke, B Pfisterer, L Teske, H. Thomae
Publikováno v:
Physica Scripta. :117-120
The Frankfurt superconducting EBIS has been run beyond the space-charge neutralization limit making use of the evaporative cooling technique showing a continuous transition between EBIS to EBIT operation. The experience gained on the performance of t
Autor:
M. Kleinod, N. R. Badnell, C. Brandau, P. H. Mokler, T. Cramer, N. Angert, J. Linkemann, O. Uwira, Christophor Kozhuharov, J. Klabunde, R. Becker, Alfred Müller, Alejandro Frank, W. Spies
Publikováno v:
Hyperfine Interactions. 108:167-175
Recombination of multiply charged ions with electrons at very low relative energies has become a major topic of interest, due to the observation of rates which are enhanced beyond the expectations for radiative recombination. We present results for A
Publikováno v:
Review of Scientific Instruments. 75:1554-1556
Future synchrotrons for cancer therapy could profit from single turn injection in terms of size, costs, and ease of operation [O. Kester, R. Becker, and M. Kleinod, Rev. Sci. Instrum. 67 (1996)]. Short (∼1.5 μs) and intense (∼1.3 mA) pulses of h
Publikováno v:
Journal of Physics: Conference Series. 2:94-96
Cancer therapy synchrotrons profit from single turn injection in terms of size, costs and easy operation. The MEdically Dedicated EBIS (MEDEBIS), built in Frankfurt, will deliver short (~1.5 µs) and intense (~1.3 mA) pulses of highly charged light i