R
Ralf Srama
Researcher at University of Stuttgart
Publications - 269
Citations - 8158
Ralf Srama is an academic researcher from University of Stuttgart. The author has contributed to research in topics: Cosmic dust & Interplanetary dust cloud. The author has an hindex of 43, co-authored 264 publications receiving 7101 citations. Previous affiliations of Ralf Srama include Baylor University & Max Planck Society.
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Journal ArticleDOI
Upgrades of a Small Electrostatic Dust Accelerator at the University of Stuttgart
Yanwei Li,Marcel Bauer,Sebastian Kelz,Heiko Strack,Jonas Simolka,C. Mazur,Maximilian Sommer,Anna Mocker,Ralf Srama +8 more
TL;DR: In this paper , the authors describe the upgrade of a small electrostatic dust accelerator located at the University of Stuttgart, which was successfully installed and tested in the beam line.
Book ChapterDOI
CDA cruise science: Comparison of measured dust flux at 1 AU with models
Eberhard Grün,M. Müller,Ralf Srama,Sascha Kempf,J. B. Goldworthy,J. B. Goldworthy,N. McBridge,Simon F. Green,Simon F. Green,J. A. M. McDonnell,J. A. M. McDonnell +10 more
TL;DR: The data gathered by the Cosmic Dust Analyser (CDA) on board Cassini close to 1 AU are investigated in this paper, where it is shown that interstellar particles could fill the gap between the interplanetary flux model and the measured impact rate.
Journal ArticleDOI
Modelling cometary meteoroid stream traverses of the Martian Moons eXploration (MMX) spacecraft en route to Phobos
H. Krüger,Masanori Kobayashi,P. Strub,Georg-Moragas Klostermeyer,Maximilian Sommer,Hiroshi Kimura,Eberhard Grün,Eberhard Grün,Ralf Srama,Ralf Srama +9 more
TL;DR: In this article, the authors used the IMEX model to study the impact hazards imposed by meteoroid impacts onto large-area spacecraft structures that will be particularly necessary for crewed deep space missions.
Proceedings ArticleDOI
Accelerator experiments with soft protons and hyper-velocity dust particles: application to ongoing projects of future X-ray missions
Emanuele Perinati,Sebastian Diebold,Eckhard Kendziorra,Andrea Santangelo,C. Tenzer,J. Jochum,S. Bugiel,Ralf Srama,E. Del Monte,Marco Feroci,Alda Rubini,A. Rachevski,Gianluigi Zampa,N. Zampa,I. Rashevskaya,A. Vacchi,P. Azzarello,Enrico Bozzo,J. W. den Herder,Silvia Zane,Søren Brandt,Margarita Hernanz,Maurice A. Leutenegger,R. L. Kelley,Caroline A. Kilbourne,Norbert Meidinger,Lothar Strüder,B. Cordier,D. Gotz,George W. Fraser,J. P. Osborne,Konrad Dennerl,Michael Freyberg,Peter Friedrich +33 more
TL;DR: In this article, the authors report on their activities, currently in progress, aimed at performing accelerator experiments with soft protons and hyper-velocity dust particles, which include tests of different types of X-ray detectors and related components.
Journal ArticleDOI
Multimodal characteristics of a piezoelectric lead zirconate titanate element impacted with iron particles having velocities above 20 km/s
Takashi Miyachi,Masayuki Fujii,Nobuyuki Hasebe,Osamu Okudaira,Seiji Takechi,Toshiyuki Onishi,Shigeyuki Minami,Masanori Kobayashi,Takeo Iwai,Eberhard Grün,Ralf Srama,Ralf Srama,Nagaya Okada +12 more
TL;DR: In this paper, the responses of a piezoelectric lead zirconate titanate (PZT) element to hypervelocity collisions were experimentally studied.