Borane (B m H n ), Hydrogen rich, Proton Boron fusion fuel materials for high yield laser-driven Alpha sources

I.C.E. Turcu*, D. Margarone, L. Giuffrida, A. Picciotto, C. Spindloe, A.P.L. Robinson, D. Batani

*Corresponding author for this work

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Abstract

We propose for the first time, a new fuel-material for laser-driven Proton Boron (P-B) fusion nuclear reactions. We propose, Hydrogen rich, Borane (B m H n ) materials as fusion fuel as compared to Boron Nitride (BN) presently used. We estimate more than 10-fold increase in the yield of nuclear fusion reactions, and Alpha-prticle flux, when, for example Ammonia Borane (BNH6) laser-target material will be used compared to the state of the art normalized flux ∼108 Alphas/sr/J from BN targets. BNH6 contains ∼1000× higher concentration of Hydrogen compared to BN. We report the manufacture of the first solid-pellets Ammonia Borane laser-targets. To obtain high Flux Alpha sources from repetitive lasers we propose new BNH6 target geometries: liquid (molten) droplets/jets; or translated tape- or disc-targets coated with BNH6 powder. Targets would be irradiated in low pressure, ambient buffer gas. To enhance the fusion/Alpha yield of ultra-high intensity PetaWatt laser-target interaction we propose nano- and micro-structured Borane targets. As applications, we propose to use the Alpha-driven nuclear reactions inside the laser-driven Borane targets for new schemes to produce short-lived medical radioisotopes. Such laser-driven radioisotope beamlines would be installed directly in hospitals. Borane materials, like Diborane (6), B2H6, are also proposed as nuclear-fuels for laser-driven Proton-Boron fusion energy generation. The high dilution of Boron in Hydrgen B/H = 33% would need to be further enahnced to B/H < 15% to cut radiation losses from the hot and dense fusion pellet.
Original languageEnglish
Article numberC03065
Number of pages23
JournalJournal of Instrumentation
Volume19
Issue number3
DOIs
Publication statusPublished - 28 Mar 2024
Event
2nd International Workshop on Proton-Boron Fusion
- Catania, Italy
Duration: 05 Sept 202208 Sept 2022

Keywords

  • Alpha Sources Driven by Lasers
  • Borane fuels for P-B Fusion
  • Ion sources (positive ions, negative ions, electron cyclotron resonance (ECR), electron beam (EBIS))
  • Proton-Boron Fusion
  • Laser-Driven P-B Fusion, Laser produced Radioisotopes, Ammonia Borane, Diborane
  • Laser-driven Proton-Boron Fusion
  • Plasma generation (laser-produced, RF, x ray-produced)

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