O. Deppert
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View article: Nuclear Material Detection by One-Short-Pulse-Laser-Driven Neutron Source
Nuclear Material Detection by One-Short-Pulse-Laser-Driven Neutron Source Open
Covered in the PowerPoint presentation are the following areas: Motivation and requirements for active interrogation of nuclear material; laser-driven neutron source; neutron diagnostics; active interrogation of nuclear material; and, conc…
View article: Transport of an intense proton beam from a cone-structured target through plastic foam with unique proton source modeling
Transport of an intense proton beam from a cone-structured target through plastic foam with unique proton source modeling Open
Laser-accelerated proton beams are applicable to several research areas within high-energy density science, including warm dense matter generation, proton radiography, and inertial confinement fusion, which all involve transport of the bea…
View article: Laser-induced acceleration of Helium ions from unpolarized gas jets
Laser-induced acceleration of Helium ions from unpolarized gas jets Open
In order to develop a laser-driven spin-polarized 3 He-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…
View article: Intense, directed neutron beams from a laser-driven neutron source at PHELIX
Intense, directed neutron beams from a laser-driven neutron source at PHELIX Open
Laser-driven neutrons are generated by the conversion of laser-accelerated ions via nuclear reactions inside a converter material. We present results from an experimental campaign at the PHELIX laser at GSI in Darmstadt where protons and d…
View article: Laser-plasmas in the relativistic-transparency regime: Science and applications
Laser-plasmas in the relativistic-transparency regime: Science and applications Open
Laser-plasma interactions in the novel regime of relativistically induced transparency (RIT) have been harnessed to generate intense ion beams efficiently with average energies exceeding 10 MeV/nucleon (>100 MeV for protons) at “table-t…
View article: Neutron imaging with the short-pulse laser driven neutron source at the Trident laser facility
Neutron imaging with the short-pulse laser driven neutron source at the Trident laser facility Open
Emerging approaches to short-pulse laser-driven neutron production offer a possible gateway to compact, low cost, and intense broad spectrum sources for a wide variety of applications. They are based on energetic ions, driven by an intense…
View article: Towards a Laser-driven polarized $^3$He Ion Beam Source
Towards a Laser-driven polarized $^3$He Ion Beam Source Open
In order to investigate the polarization degree of laser-accelerated 3 He ions from a pre-polarized 3 He gas-jet target, several challenges have to be overcome beforehand.One of these includes the demonstration of the feasibility of laser-…
View article: A bright neutron source driven by relativistic transparency of solids
A bright neutron source driven by relativistic transparency of solids Open
Neutrons are a unique tool to alter and diagnose material properties and excite nuclear reactions with a large field of applications. It has been stated over the last years, that there is a growing need for intense, pulsed neutron sources,…
View article: Simulations of the energy loss of ions at the stopping-power maximum in a laser-induced plasma
Simulations of the energy loss of ions at the stopping-power maximum in a laser-induced plasma Open
Simulations have been performed to study the energy loss of carbon ions in a hot, laser-generated plasma in the velocity region of the stopping-power maximum. In this parameter range, discrepancies of up to 30% exist between the various st…
View article: Accelerating ions with high-energy short laser pulses from submicrometer thick targets
Accelerating ions with high-energy short laser pulses from submicrometer thick targets Open
Using the example of the PHELIX high-energy short pulse laser we discuss the technical preconditions to investigate ion acceleration with submicrometer thick targets. We show how the temporal contrast of this system was improved to prevent…
View article: Simultaneous observation of angularly separated laser-driven proton beams accelerated via two different mechanisms
Simultaneous observation of angularly separated laser-driven proton beams accelerated via two different mechanisms Open
We present experimental data showing an angular separation of laser accelerated proton beams. Using flat plastic targets with thicknesses ranging from 200 nm to 1200 nm, a laser intensity of 6×1020 W cm−2 incident with an angle of 10°, we …