We found a match
Your institution may have rights to this item. Sign in to continue.
- Title
High-Sensitivity Thomson Spectrometry in Experiments of Laser-Driven Low-Rate NeutronLess Fusion Reactions.
- Authors
Scisciò, M.; Di Giorgio, G.; Andreoli, P. L.; Cipriani, M.; Cristofari, G.; De Angelis, R.; Salvadori, M.; Cirrone, G. A. P.; Giuffrida, L.; Margarone, D.; Milluzzo, G.; Petringa, G.; Consoli, F.
- Abstract
The aneutronic 11 B (p , α)2 α fusion reaction driven by the interaction of high-energy lasers with matter has become a popular topic of research, since it represents a potential long-term goal alternative to the most studied deuterium-tritium reaction. However, the detection of the typical ionic products, especially alpha particles, of this low-rate fusion reaction is a challenging issue, due to their low flux. One of the diagnostic devices that can be implemented in laser-driven proton-boron fusion experiments is a Thomson spectrometer (TS), which is capable of detecting and discriminating ions according to their mass-to-charge ratio (A / Z , where A is the mass number and Z is the atomic number of the ions). In this work, we report on the ultimate test of a TS, which was designed and developed at the ENEA Research Centre in Frascati, Italy, in the context of a p + 11B fusion experiment. Our device—designed to have high sensitivity and a robust shielding against electromagnetic pulses (EMPs)—was implemented at the PALS laser facility (∼700 J in ∼350 ps pulses) at a distance of 367 mm from the laser-plasma interaction point. We analyse here the measured signals obtained with our device, focusing on the assessment of their signal-to-background ratio. Despite the presence of strong EMPs and background radiation at such a short distance from the laser-irradiated target, the TS proved to be suitable for effectively detecting protons and heavier ions stemming from the plasma source.
- Publication
Laser & Particle Beams, 2023, p1
- ISSN
0263-0346
- Publication type
Article
- DOI
10.1155/2023/3531875