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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Hyperdust : An advanced in-situ detection and chemical analysis of microparticles in space
TL;DR: The HyperDust instrument as discussed by the authors is a combination of a Dust Trajectory Sensor (DTS) with an in-situ chemical analyzer, which can measure dust particles as small as 0.3 μm in radius and dust speeds up to 100 km/s.
Finding interstellar particle impacts on stardust aluminium foils: the safe handling, imaging and analysis of samples containing femtogram residues.
Anton T. Kearsley,Andrew J. Westphal,Frank J. Stadermann,S. P. Armes,Alexander Ball,Janet Borg,John Bridges,Donald E. Brownlee,Mark J. Burchell,Richard J. Chater,Andrew M. Davis,C. Floss,George J. Flynn,Zack Gainsforth,Eberhard Grün,Philipp R. Heck,Peter Hoppe,Friedrich Hörz,L. Howard,G. Howe,Gary R. Huss,Joachim Huth,Markus Landgraf,Jan Leitner,H. Leroux,L. R. Nittler,Ryan C. Ogliore,Frank Postberg,Mark C. Price,Ralf Srama,Rhonda M. Stroud,Mario Trieloff,Josep M. Trigo-Rodríguez,Scott A. Sandford,Thomas Stephan,Zoltan Sternovsky,Peter Tsou,Michael E. Zolensky +37 more
TL;DR: In this article, the authors describe the probable appearance and size of IS particle craters from initial results of experimental impacts and numerical simulation, explain how foils are being prepared and mounted for crater searching by automated acquisition of high magnification electron images, and comment on appropriate analytical techniques for preliminary examination.
TOF-SIMS Analysis of Aerogel Picokeystones - An Analogue to Stardust's Interstellar Dust Collection
Abstract: INTERSTELLAR DUST COLLECTION. T. Stephan, A. L. Butterworth, C. J. Snead, R. Srama, and A. J. Westphal, Institut für Planetologie, Westfälische Wilhelms-Universität Münster, Wilhelm-Klemm-Str. 10, 48149 Münster, Germany (stephan@uni-muenster.de), Space Sciences Laboratory, University of California at Berkeley, Berkeley, CA 94720, USA, Max-Planck-Institut für Kernphysik, Saupfercheckweg 1, 69117 Heidelberg, Germany.
Journal ArticleDOI
Synchrotron X-Ray irradiation of Stardust interstellar candidates: from ''no'' to ''low'' damage effects
Alexandre Simionovici,Carlton C. Allen,Saša Bajt,Ron K. Bastien,Hans A. Bechtel,Janet Borg,Frank E. Brenker,John Bridges,Donald E. Brownlee,Mark J. Burchell,Manfred Burghammer,Anna L. Butterworth,Peter Cloetens,Andrew M. Davis,Christine Floss,George J. Flynn,D. Frank,Zack Gainsforth,Eberhard Grün,Eberhard Grün,Philipp R. Heck,Jon K. Hillier,Peter Hoppe,L Howard,Gary R. Huss,Joachim Huth,Anton T. Kearsley,Ashley J. King,Barry Lai,Jan Leitner,Laurence Lemelle,Hugues Leroux,R. Lettieri,Will Marchant,Larry R. Nittler,Ryan C. Ogliore,Frank Postberg,Scott A. Sandford,Juan-Angel Sans Tresseras,Tom Schoonjans,Sylvia Schmitz,Geert Silversmit,Vicente A. Solé,Ralf Srama,Thomas Stephan,Julien Stodolna,Rhonda M. Stroud,Steve Sutton,Mario Trieloff,Peter Tsou,Akira Tsuchiyama,Tolek Tyliczszak,Bart Vekemans,Laszlo Vincze,Andrew J. Westphal,D. Zevin,Michael E. Zolensky +56 more
TL;DR: Although synchrotron radiation X-Ray fluorescence (SR-XRF) is among the least destructive analysis methods applied to rare extraterrestrial grains, we have observed radiation damage effects following high flux synchoretron analyses as mentioned in this paper.