Assessment of Angular Spectral Distributions of Laser Accelerated Particles for Simulation of Radiation Dose Map in Target Normal Sheath Acceleration Regime of High Power Laser-Thin Solid Target Interaction—Comparison with Experiments
Source abstract
Abstract
An adequate simulation model has been used for the calculation of angular and energy distributions of electrons, protons, and photons emitted during a high-power laser, 5-µm thick Ag target interaction. Their energy spectra and fluencies have been calculated between 0 and 360 degrees around the interaction point with a step angle of five degrees. Thus, the contribution of each ionizing species to the total fluency value has been established. Considering the geometry of the experimental set-up, a map of the radiation dose inside the target vacuum chamber has been simulated, using the Geant4 General Particle Source code, and further compared with the experimental one. Maximum values of the measured dose of the order of tens of mGy per laser shot have been obtained in the direction normal to the target at about 30 cm from the interaction point.
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Research context
OpenAlex topics: Laser-Plasma Interactions and Diagnostics · Laser-induced spectroscopy and plasma · Laser Material Processing Techniques
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Low Temperature Plasma Department, National Institute for Laser, Plasma and Radiation Physics (INFLPR), Atomistilor Str. No. 409, 077125 Magurele, Ilfov County, Romania
Nuclear Physics Department, Faculty of Physics, University of Bucharest, 077125 Magurele, Romania
STARDOOR Department, National Institute for Laser, Plasma and Radiation Physics, Atomistilor Str. No. 409, 077125 Magurele, Romania
Centre for Advanced Laser Technology (CETAL-PW), National Institute for Laser, Plasma and Radiation Physics, Atomistilor Str. No. 409, 077125 Magurele, Ilfov County, Romania
Faculty of Electronics, Telecommunications and Information Technology, Politehnica University of Bucharest (UPB), Splaiul Independentei 313, 060042 Bucharest, Romania
Funding
European Space Agency
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