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www.nipne.ro/proiecte/pn4/24-projects.html
Acronym: HighProtonPLas
Contracting Authority: IFA
Number / Date of the contract: ELI-RO/RDI/2024-19 / 2024-07-12
Program: 5.9/5.9.1/ELI-RO
Project Manager: Dr. Catalin M. Ticos
Partners: INFLPR, IMT
Starting date / finishing date: 2024-07-12 / 2027-03-30
Project value: 4.000.000 RONAbstract: The use of near critical density (NCD) targets is a promising route to enhance laser-driven proton acceleration, due to efficient conversion of the laser energy into hot electrons. This includes NCD in foam or other type of controlled low-density layer deposited on a foil in which laser self-focusing and efficient energy coupling to electrons enhances sheath acceleration. Also, ultrathin foils expanding to NCD enables relativistic transparency-enhanced acceleration mechanisms to occur. We propose to carry out experiments with engineered multilayer micron-size targets and with ultrathin nanometer size foils. The multilayer targets consist of a low-density foam deposited on a substrate or a double or triple layer structure with controlled density gradient (few mg/μm) across its thickness. Common to both approaches, the role of density gradient will be investigated for the first time via controlled expansion by variation of the thickness of the foil and the use of a second prepulse beam. The optimum target expansion conditions for enhancing proton acceleration in both approaches involving NCD targets will be identified, and the scaling of the proton maximum energy with the laser pulse intensity will be measured. In addition, as a first application alpha particles will be generated in fusion reactions induced in targets (including multilayered) featuring an inner boron layer deposited on a substrate. It is expected that inclusion of H2, He or D during the coating process will increase the fusion yield. As a second application, the collimation of the highly divergent proton beam is proposed in a high-density pulsed electron plasma produced by a Penning-Malberg trap which will be designed and implemented at ELI-NP.
Objectives:
THE STAGES OF THE PROJECT AND DELIVERY DATES
1. WP1 Target engineering and experiments with ultrathin targets (2024-12-31)
2. WP2 Target engineering and experiments with multilayer targets (2025-12-31)
3. WP3 Laser-induced fusion reactions and focusing of proton beams (2026-12-31)
4. WP4 Conclusions, exploitation and future plans (2027-03-31)
RESULTS
PUBLISHED ARTICLES
RESEARCH TEAM
Back to the Project List
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Versiunea proiectului in limba romana 
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Tel: +(4021) 404.23.00, Fax: +(4021) 457.44.40
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