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Achim Richter
Researcher at Technische Universität Darmstadt
Publications - 656
Citations - 18241
Achim Richter is an academic researcher from Technische Universität Darmstadt. The author has contributed to research in topics: Inelastic scattering & Electron. The author has an hindex of 61, co-authored 654 publications receiving 16937 citations. Previous affiliations of Achim Richter include University of Münster & University of Saskatchewan.
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Journal ArticleDOI
Electromagnetic M 1 transition strengths from inelastic proton scattering: The cases of Ca 48 and Pb 208
J. Birkhan,Hiroshi Matsubara,P. von Neumann-Cosel,Norbert Pietralla,V. Yu. Ponomarev,Achim Richter,Atsushi Tamii,Jochen Wambach +7 more
TL;DR: In this article, a method based on isospin symmetry is presented to extract its electromagnetic transition strength from the $(p,{p}^{\ensuremath{'}})$ cross sections.
Journal ArticleDOI
Channeling radiation of electrons in natural diamond crystals and their coherence and occupation lengths
Harald Genz,L. Groening,P. Hoffmann-Stascheck,Achim Richter,M. Hofer,Josef Hormes,U. Nething,J. P. F. Sellschop,C. Toepffer,M. Weber +9 more
TL;DR: It turns out that multiple scattering dominates in the planar case and single scattering for the axial channeling, and values up to 7.7 \ensuremath{\mu}m, which is about a factor of 2 larger than observed before in silicon, are by far the largest ever observed.
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Search for the density effect in inner-shell lonization by ultra relativistic electron impact
TL;DR: In this paper, the authors extended the measurements of K-and L-shell ionization cross sections by electron impact into the ultra relativistic energy region, 0.9≦E≦2.0 GeV, in order to search for a saturation of the cross section.
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Isovector M1 transitions in 28Si and the role of meson exchange currents.
C. Lüttge,P. von Neumann-Cosel,F. Neumeyer,Chary Rangacharyulu,Achim Richter,G. Schrieder,E. Spamer,D. I. Sober,S. K. Matthews,B. A. Brown +9 more
TL;DR: Overall agreement with a shell-model calculation using the unified {ital sd}-shell interaction and effective factors is obtained and the presence of meson exchange current contributions of the order of 25{percent} to the summed {ital M}1 transition strength is revealed.
Journal ArticleDOI
X-ray polarimetry using the photoeffect in a CCD detector
Gerd W. Buschhorn,Rainer Kotthaus,W. Kufner,W. Rössl,M. Rzepka,Klaus Schmidt,Harald Genz,Hans-Dieter Gräf,P. Hoffmann-Stascheck,U. Nething,Achim Richter,W.-R. Dix,G. Illing,M. Lohmann,J. Pflüger,B. Reime,L. Schildwächter +16 more
TL;DR: In this article, photo effect in a fine-segmented MOS charge coupled device (CCD) was applied to monochromatic synchrotron radiation at HASYLAB at DESY and to planar channeling radiation at the superconducting electron linac S-DALINAC at Darmstadt.