A
A. Becker
Researcher at Max Planck Society
Publications - 38
Citations - 624
A. Becker is an academic researcher from Max Planck Society. The author has contributed to research in topics: Ion & Ionization. The author has an hindex of 14, co-authored 37 publications receiving 534 citations. Previous affiliations of A. Becker include University of Giessen.
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Journal ArticleDOI
The cryogenic storage ring CSR
R. von Hahn,A. Becker,F. Berg,Klaus Blaum,Christian Breitenfeldt,Christian Breitenfeldt,H. Fadil,F. Fellenberger,M. Froese,Sebastian George,J. Göck,Manfred Grieser,Florian Grussie,E. A. Guerin,Oded Heber,Philipp Herwig,J. Karthein,Claude Krantz,Holger Kreckel,Michael Lange,Felix Laux,Svenja Lohmann,S. Menk,Christian Meyer,P M Mishra,O. Novotný,O. Novotný,A. P. O'Connor,Dmitri A. Orlov,Michael Rappaport,Roland Repnow,S. Saurabh,Stefan Schippers,C. D. Schröter,Dirk Schwalm,Dirk Schwalm,Lutz Schweikhard,T. Sieber,A. Shornikov,K. Spruck,K. Spruck,Sunil Kumar,Joachim Ullrich,Xavier Urbain,Stephen Vogel,P. Wilhelm,Andreas Wolf,Daniel Zajfman +47 more
TL;DR: Fast atomic, molecular, and cluster ion beams stored for long periods of time in a cryogenic environment will allow experiments on collision- and radiation-induced fragmentation processes of ions in known internal quantum states with merged and crossed photon and particle beams.
Journal ArticleDOI
The Cryogenic Storage Ring CSR
Robert von Hahn,A. Becker,F. Berg,Klaus Blaum,Christian Breitenfeldt,Hisham Fadil,F. Fellenberger,M. Froese,Sebastian George,J. Göck,Manfred Grieser,Florian Grussie,E. A. Guerin,Oded Heber,Philipp Herwig,J. Karthein,Claude Krantz,Holger Kreckel,Michael Lange,Felix Laux,Svenja Lohmann,S. Menk,Christian Meyer,P M Mishra,Oldřich Novotný,Aodh P. O Connor,Dmitry A. Orlov,Michael Rappaport,Roland Repnow,S. Saurabh,Stefan Schippers,Claus Dieter Schröter,Dirk Schwalm,Lutz Schweikhard,Thomas Sieber,A. Shornikov,K. Spruck,Sudhakaran Sunil Kumar,Joachim Ullrich,Xavier Urbain,Stephen Vogel,P. Wilhelm,Andreas Wolf,Daniel Zajfman +43 more
TL;DR: An electrostatic cryogenic storage ring, CSR, for beams of anions and cations with up to 300 keV kinetic energy per unit charge has been designed, constructed and put into operation.
Journal ArticleDOI
Recombination of W19+ ions with electrons: Absolute rate coefficients from a storage-ring experiment and from theoretical calculations
K. Spruck,K. Spruck,N. R. Badnell,Claude Krantz,O. Novotný,A. Becker,Dietrich Bernhardt,Manfred Grieser,Michael Hahn,Roland Repnow,Daniel Wolf Savin,Andreas Wolf,Alfred Müller,Stefan Schippers +13 more
TL;DR: In this paper, the authors presented experimentally measured and theoretically calculated rate coefficients for the electron-ion recombination of W18+([Kr]4d104f10) forming W17+ and showed that the merged-beam rate coefficient is dominated by strong, mutually overlapping recombination resonances.
Journal ArticleDOI
Quantum-state-selective electron recombination studies suggest enhanced abundance of primordial HeH.
Oldřich Novotný,P. Wilhelm,Daniel Paul,Ábel Kálosi,Ábel Kálosi,S. Saurabh,A. Becker,Klaus Blaum,Sebastian George,Sebastian George,J. Göck,Manfred Grieser,Florian Grussie,Robert von Hahn,Claude Krantz,Holger Kreckel,Christian Meyer,P M Mishra,Damian Muell,Felix Nuesslein,Dmitry A. Orlov,Marius Rimmler,Viviane C. Schmidt,A. Shornikov,Aleksandr S. Terekhov,Stephen Vogel,Daniel Zajfman,Andreas Wolf +27 more
TL;DR: The stability of HeH+ to electron bombardment in a cryogenic storage ring suggests its enhanced primordial abundance and a pronounced decrease of the electron recombination rates for the lowest rotational states of the helium hydride ion, compared with previous measurements at room temperature.
Journal ArticleDOI
Electron-impact single and double ionization of W17 +
J Rausch,A. Becker,K. Spruck,J. Hellhund,Alexander Borovik,K. Huber,Stefan Schippers,Alfred Müller +7 more
TL;DR: In this article, a cross-beam setup was used to measure cross sections for electron-impact single and double ionization of W17 + ions at collision energies ranging from threshold up to 1000eV.