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Experimental investigation under laser-driven shocks of the dynamic behavior of materials for beam-intercepting devices in particle accelerators
/ Accettura, C (CERN) ; Baudin, L (CERN) ; Bertarelli, A (CERN) ; Brabetz, C (Darmstadt, GSI) ; Carra, F (CERN) ; Martynenko, A S (Darmstadt, GSI) ; Morena, A (Polytech. Turin) ; Moros, A (CERN) ; Peroni, L (Polytech. Turin) ; Scapin, M (Polytech. Turin) et al.
In the present work the results of an extensive experimental campaign in which laser-shocks were used to assess the mechanical strength of graphitic materials are
presented. The aim of the project was to study innovative advanced materials used in high energy particle accelerators for beam intercepting devices (BIDs), such as
collimators, absorber blocks and dumps. [...]
2024 - 10 p.
- Published in : Results Materials 24 (2024) 100638
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Dynamic response to short-pulsed U-ion beams of material candidates for vacuum beam windows manufacturing
/ Notari, Lorenzo (Polytech. Turin) ; Pasquali, Michele (Rome U.) ; Carra, Federico (CERN) ; Losasso, Marcello (CERN) ; Guardia-Valenzuela, Jorge (CERN) ; Tomut, Marilena (Munster U. ; Darmstadt, GSI)
The introduction of next-generation extremely energetic particle accelerator facilities, such as the High-Luminosity upgrade of the LHC (HL-LHC) or the proposed future circular collider (FCC), will dramatically increase the energy stored in the circulating particle beams. This will critically affect the thermo-physical and mechanical properties of the materials adopted, possibly compromising their reliability during the operating lifetime. [...]
2024 - 26 p.
- Published in : Heliyon 10 (2024) 40707
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Dynamic Response of Graphitic Targets with Tantalum Cores Impacted by Pulsed 440-GeV Proton Beams
/ Simon, Pascal (Darmstadt, GSI ; Darmstadt, Tech. U.) ; Drechsel, Philipp (Darmstadt, GSI ; Darmstadt, Tech. U.) ; Katrik, Peter (Darmstadt, Tech. U.) ; Voss, Kay-Obbe (Darmstadt, Tech. U.) ; Bolz, Philipp (Darmstadt, Tech. U. ; Darmstadt, GSI) ; Harden, Fiona J (CERN) ; Guinchard, Michael (CERN) ; Kadi, Yacine (CERN) ; Trautmann, Christina (Darmstadt, GSI ; Darmstadt, Tech. U.) ; Tomut, Marilena (Darmstadt, GSI)
Various graphite targets with a tantalum core were exposed to 440 GeV pulsed proton beams at the HiRadMat facility at CERN.
)e dynamic response was investigated by monitoring the surface velocity of the samples by laser Doppler vibrometry. )e study
comprises different graphite grades, such as polycrystalline, expanded and carbon-fiber reinforced graphite, and low-density
graphitic foams, all candidates for beam-intercepting devices in high-power accelerators. [...]
2021 - 19 p.
- Published in : Shock and Vibration 2021 (2021) 1-19
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Radiation-Induced Effects on LHC Collimator Materials under Extreme Beam Conditions
/ Quaranta, E. (CERN ; Milan Polytechnic) ; Bertarelli A. (CERN) ; Bunk, K. (Darmstadt, GSI ; Goethe U., Frankfurt (main)) ; Carra, F. (CERN ; Turin Polytechnic) ; Guardia Valenzuela, J. (CERN ; U. Zaragoza (main)) ; Hermes, P. D. (CERN ; U. Munster) ; Hubert, C. (Darmstadt, GSI ; Darmstadt, Tech. U.) ; Nocera, P. (Brookhaven) ; Porth, C. (Darmstadt, GSI ; Darmstadt, Tech. U.) ; Redaelli, S. (CERN) et al.
Over the last years, several samples of present and novel LHC collimator materials were irradiated under various beam conditions (using protons, fast neutrons, light and heavy ions at different energies and fluences) in different facilities around the world. This was achieved through an international collaboration including many companies and laboratories over the world. [...]
CERN-ACC-2016-0063.-
Geneva : CERN, 2016
Published version from JACoW: PDF;
In : 7th International Particle Accelerator Conference, Busan, Korea, 8 - 13 May 2016, pp.WEPMW032
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Material-related issues at high-power and high-energy ion beam facilities
/ Bender, M. (Darmstadt, GSI) ; Severin, D. (Darmstadt, GSI) ; Tomut, M. (Darmstadt, GSI) ; Trautmann, C. (Darmstadt, GSI ; Darmstadt, Tech. U.)
When solids are exposed to energetic ions (MeV-GeV), their physical and chemical structure can be severely modified. The change is governed by ultrafast dynamical processes starting from the deposition of large energy densities, electronic excitation and ionization processes, and finally damage creation in the atomic lattice system. [...]
CERN-ACC-2015-0214.-
Geneva : CERN, 2015
- Published in : 10.1088/1742-6596/599/1/012039
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Phase field modelling of dynamic thermal fracture in the context of irradiation damage
/ Schlüter, Alexander (Kaiserslautern U.) ; Kuhn, Charlotte (Kaiserslautern U.) ; Müller, Ralf (Kaiserslautern U.) ; Tomut, Marilena (Darmstadt, GSI) ; Trautmann , Christina (Darmstadt, GSI) ; Weick, Helmut (Darmstadt, GSI) ; Plate, Carolin (Kaiserslautern U.)
This work presents a continuum mechanics approach to model fracturing processes in brittle materials that are subjected to rapidly applied high-temperature gradients. Such a type of loading typically occurs when a solid is exposed to an intense high-energy particle beam that deposits a large amount of energy into a small sample volume. [...]
CERN-ACC-2015-0213.-
Geneva : CERN, 2015
- Published in : 10.1007/s00161-015-0456-z
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Heavy ion induced radiation effects in novel molybdenum-carbide graphite composite materials
/ Tomut, M (Darmstadt, GSI ; Bucharest, Nat. Inst. Mat. Sci.) ; Xu, Y. (Darmstadt, Tech. U.) ; Bolz, Ph. (Darmstadt, Tech. U.) ; Carra, F. (CERN) ; Quaranta, E. (CERN) ; Hermes, P. (CERN) ; Bertareli, A. (CERN) ; Redaelli, S. (CERN) ; Rossi, A. (CERN) ; Bizzaro, S. (Brevetti BIZZ, San Bonifacio) et al.
Innovative molybdenum-carbide graphite (Mo-Gr) composites were specifically developed for high energy physics applications. These materials are showing a very promising combination of thermal, electrical, and mechanical properties for application in beam protection elements for high-power accelerators. [...]
CERN-ACC-2016-0057; GSI-SR2014-APPA-MML-MR-14; GSI Report 2015-1.-
Geneva : CERN, 2015 - 1 p.
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COLLIMATORS AND MATERIALS FOR HIGH INTENSITY HEAVY ION SYNCHROTRONS
/ Stadlmann, J (GSI) ; Boyzk, L (GSI, TU Darmstadt) ; Kollmus, H (GSI) ; Spiller, P (GSI) ; Strasik, I (GSI) ; Tahir, N A (GSI) ; Tomut, M (GSI, NIMP Bucharest) ; Trautmann, C (GSI, TU Darmstadt)
WP: 8: Collimators & materials for higher beam power beam
Task: 8.1: ColMat Coordination & Communication
The operation of high power high brightness accelerators requires huge efforts for beam cleaning and machine protection. [...]
EuCARD-CON-2012-030.
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2012.
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9.
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OVERVIEW OF EUCARD ACCELERATOR AND MATERIAL RESEARCH AT GSI
/ Stadlmann, J (GSI) ; Boyzk, L (GSI, TU Darmstadt) ; Kollmus, H (GSI) ; Mustafin, E (GSI) ; Pyka, N (GSI) ; Spiller, P (GSI) ; Strasik, I (GSI) ; Tahir, N A (GSI) ; Tomut, M (GSI, NIMP Bucharest) ; Trautmann, C (GSI)
WP: 8: Collimators & materials for higher beam power beam
Task: 8.1: ColMat Coordination & Communication
EuCARD is a joined accelerator R&D initiative funded by the EU. [...]
EuCARD-CON-2013-003.
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2011.
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10.
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Collimation and material science studies (ColMat) at GSI.
/ Stadlmann, J (GSI Helmholtzzentrum für Schwerionenforschung, Darmstadt) ; Boyzk, L (GSI Helmholtzzentrum für Schwerionenforschung, Darmstadt) ; Kollmus, H (GSI Helmholtzzentrum für Schwerionenforschung, Darmstadt) ; Krause, M (GSI Helmholtzzentrum für Schwerionenforschung, Darmstadt) ; Mustafin, E (GSI Helmholtzzentrum für Schwerionenforschung, Darmstadt,) ; Petzenhauser, I (GSI Helmholtzzentrum für Schwerionenforschung, Darmstadt) ; Spiller, P (GSI Helmholtzzentrum für Schwerionenforschung, Darmstadt) ; Strasik, I (GSI Helmholtzzentrum für Schwerionenforschung, Darmstadt) ; Tahir, N (GSI Helmholtzzentrum für Schwerionenforschung, Darmstadt) ; Tomut, M (GSI Helmholtzzentrum für Schwerionenforschung, Darmstadt) et al.
WP: 8: Collimators & materials for higher beam power beam
Task: 8.1: ColMat Coordination & Communication
Within the frame of the EuCARD program, the GSI Helmholtzzentrum für Schwerionenforschung in Darmstadt is performing accelerator R&D in workpackage 8: ColMat. [...]
EuCARD-CON-2010-081.
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2010.
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