Activities

Objective O1

Design and execution of crystal irradiation experiments

1.1. Defining of condensed matter irradiation experiments for the ELI-NP Technical Design Report.

1.2. Design of an experimental set-up for materials irradiation with laser accelerated particles.

1.3. Experimental set-up preparation: device manufacturing and commissioning.

1.4. Measurements of energy spectrum of the laser beam driven proton and electron bunches at different positions in the experimental set-up.

1.5. Irradiation of the prepared samples in the designed set-up, for different laser intensities.

Investigation of radiation effects on the rare earth doped fluoride crystals

2.1. Growth of various YbF₃ – concentrations doped BaF₂ crystals.

2.2. Growth of various YbF₃ – concentrations doped CaF₂ crystals.

2.3. Studies on the structural defects-dislocations in YbF₃ –doped (Ba/Ca)F₂ crystals before and after irradiation.

2.4. Absorption spectroscopy of various concentrations YbF₃ –doped (Ba/Ca)F₂ crystals before and after irradiation.

2.5. Dielectric spectra of various concentrations YbF₃ –doped (Ba/Ca)F₂ crystals before and after irradiation

Investigation of radiation effects on the semiconductor crystals

3.1. Growth of multicrystalline silicon in Bridgman equipment.

3.2. Selecting the solar cells subjected to experimentation.

3.3. Characterization of solar cell conversion efficiency before and after irradiation.

3.4. Characterization of the multicrystalline silicon by resistivity and lifetime spectroscopy measurements, before and after irradiation.

Numerical modeling of the laser accelerated proton and electron radiation through interaction with a thin film

4.1. Assessment of existent PIC (Particle in Cell) simulation tools for particle acceleration from laser beam target interaction.

4.2. Eficiency evaluation of the selected PIC modeling software on the IBM Blue Gene supercomputer.

4.3. Validation of the selected software by comparison with results of laser beam driven proton and electron acceleration reported in the literature.

4.4. Comparison between numerical modeling and experimental investigations (Objective O1) on the laser beam driven proton and electron radiation