This title appears in the Scientific Report :
2019
Please use the identifier:
http://hdl.handle.net/2128/23442 in citations.
Please use the identifier: http://dx.doi.org/10.1088/1361-6587/ab4613 in citations.
Laser-induced acceleration of Helium ions from unpolarized gas jets
Laser-induced acceleration of Helium ions from unpolarized gas jets
In order to develop a laser-driven spin-polarized 3He-ion beam source available for nuclear-physics experiments as well as for the investigation of polarized nuclear fusion, several challenges have to be overcome. Apart from the provision of a properly polarized 3He gas-jet target, one of the bigges...
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Personal Name(s): | Engin, Ilhan (Corresponding author) |
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Chitgar, Zahra / Deppert, Oliver / Di Lucchio, Laura / Engels, Ralf W. / Fedorets, Pavel / Frydrych, Simon / Gibbon, Paul / Kleinschmidt, Annika / Lehrach, Andreas / Maier, Rudolf / Prasuhn, Dieter / Roth, Markus / Schlüter, Friederike / Schneider, Claus M / Stöhlker, Thomas / Strathmann, Katharina / Büscher, Markus | |
Contributing Institute: |
JARA - HPC; JARA-HPC Jülich Supercomputing Center; JSC Kernphysikalische Großgeräte; IKP-4 Experimentelle Hadrondynamik; IKP-2 Elektronische Eigenschaften; PGI-6 |
Published in: | Plasma physics and controlled fusion, 61 (2019) 11, S. 115012 |
Imprint: |
Bristol
IOP Publ.
2019
|
DOI: |
10.1088/1361-6587/ab4613 |
Document Type: |
Journal Article |
Research Program: |
Kinetic Plasma Simulation with Highly Scalable Particle Codes Doktorand ohne besondere Förderung Computational Science and Mathematical Methods Accelerator R & D |
Link: |
OpenAccess OpenAccess |
Publikationsportal JuSER |
Please use the identifier: http://dx.doi.org/10.1088/1361-6587/ab4613 in citations.
In order to develop a laser-driven spin-polarized 3He-ion beam source available for nuclear-physics experiments as well as for the investigation of polarized nuclear fusion, several challenges have to be overcome. Apart from the provision of a properly polarized 3He gas-jet target, one of the biggest milestones is the demonstration of the general feasibility of laser-induced ion acceleration out of gas-jet targets. Of particular importance is the knowledge about the main ion-emission angles as well as the achievable ion-energy spectra (dependent on the optimal set of laser and target parameters). We report on the results of such a feasibility study performed at PHELIX, GSI Darmstadt. Both 3He- and 4He-gas jets (n_gas ∼ 10^19 cm−3) were illuminated with high-intensity laser pulses, I_L ~ O(10^19 W cm^-2). The main ion-emission angles could be identified (±90° with respect to the laser-propagation direction) and the ion-energy spectra for all ion species could be extracted: for the optimal laser and target parameters, the high-energy cut-offs for He^2+,1+ ions were 4.65 MeV (with a normalized energy uncertainty of Delta E E^-1 = 0.033) and 3.27 MeV (Delta E E^-1 = 0.055), respectively. |