Cross-Section Measurements of the 11B(p,α)2α Reaction near the First Resonant Energy

Zhang, Shizheng; Xu, Hao; Xu, X.; Wei, Wenqing; Ren, Junkai; Chen, Benzheng; Ma, Binze; Hu, Zhongmin; Li, Fangfang; Liu, Lirong; Yang, Ming; Lai, Zeyu; Yue, Hongwei; Xiong, Jie; Xu, Zhen; Chen, Yanhong; Wang, Zhao; Zhou, Zexian; Shi, Lulin; Cheng, Rui; Deng, Zhigang; Qi, Wei; Zhou, Weimin; Zhao, Guoqiang; Liu, Bing; Luo, Di; Hoffmann, D. H. H.; Zhao, Yongtao

doi:10.1155/2023/9697329

Cited by 4 publications

(3 citation statements)

References 17 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The latter breakups into an alpha particle plus a 8 Be in the ground or the first excited state, which then decays to alpha particles with different energy spectra. The total energy of the three produced alphas is also 8.7 MeV and the energy spectrum of the produced alphas is continuum, with a maximum value of approximately 6 MeV [8,12,56]. This fact could be a good argument for the interpretation of the experimental results on alpha particle production of [19,57] and [20,21] at PALS laser facility, where the measured alpha energy achieved values of 4.5 MeV-5 MeV.…”

Section: Jinst 19 C01015mentioning

confidence: 72%

“…For the production of the three alphas from the p-11 B fusion reaction, an alternative nuclear process (channels) has been presented, in relation to the one producing a direct breakup with three iso-energetic (2.9 MeV) alphas with 8.7 MeV total energy. In this alternative process [8,12,55,56], the p-11 B nuclear reaction leads initially to the formation of 12 C * . The latter breakups into an alpha particle plus a 8 Be in the ground or the first excited state, which then decays to alpha particles with different energy spectra.…”

Section: Jinst 19 C01015mentioning

confidence: 99%

See 1 more Smart Citation

Alpha heating and avalanche effect simulations for low density proton-boron fusion plasma

Moustaizis,

Daponta,

Eliezer

et al. 2024

J. Inst.

View full text Add to dashboard Cite

The initial interest in p-11B fusion, which produces three (3) alpha particles with total energy of 8.7 MeV, was regained the last few years, due to the important experimental measurements on alpha particle production and theoretical and numerical investigations. The re-evaluation of proton-boron fusion, as an important vector for “aneutronic” energy production, is based on the consideration of the “chain reactions alpha heating effect and the related avalanche effect”, as the important process, for the increase of the fusion species (p, 11B) temperatures, to temperatures corresponding to the optimump-11B fusion cross sections. Investigation of ignition and self-sustained conditions for low density (∼ 1020 m-3) proton-boron fusion plasmas is an interesting study topic for application in magnetic confinement. We use a multi-fluid, global particle and energy balance code, describing the temporal evolution of the physical parameters of the fusion medium, as a function of the initial conditions of density and temperature of the fusion species (p, 11B). For the establishment of the distinct contribution role of the avalanche effect in proton-boron fusion, we explore cases of low (<100 keV) and high (>100 keV) initial p-11B medium temperatures. For these temperature cases, density ratios np /nB > 1 between the fusion species (p, 11B) are considered, for the optimization of Bremsstrahlung radiation losses. Simulations using the multi-fluid code in a low density p-11B medium with np /nB > 1, enable the evaluation of the initial temperatures range, which is necessary for the temporal increase of the alpha density, the rapid improvement in the p-11B fusion reaction rate (RR), the temperature rise of the fusion species (p, 11B) and the achievement of higher than 1 Q (Pf /P Brems) values, due to the manifestation of the avalanche effect.In the case of high initial fusion medium temperatures in the range: 150 keV ≤ T in ≤ 350 keV, the chain reactions alpha heating effect and the related avalanche effect contribute to the maintenance and the rise of the fusion species (p, 11B) temperature to high values, for ignition and self-sustained fusion (Q > 1).

show abstract

Section: Jinst 19 C01015mentioning

confidence: 72%

Section: Jinst 19 C01015mentioning

confidence: 99%

Alpha heating and avalanche effect simulations for low density proton-boron fusion plasma

Moustaizis,

Daponta,

Eliezer

et al. 2024

J. Inst.

View full text Add to dashboard Cite

show abstract

“…Unfortunately, the pB reaction requires high temperatures to be thermodynamically triggered in a laboratory plasma [22,23], which explains why in the last decades most of the fusion research has focused on the DT reaction, thus leaving pB fusion as a remote, although interesting, "second step" in production of energy through nuclear fusion. Nevertheless, experimental research on pB fusion as an energy source is still actively investigated by a few laboratories and even by private companies,1 but the performances in terms of number of triggered fusion reactions are, at the moment, at least two generations behind the studies performed within the standard approaches of MCF and ICF [24].…”

Section: Introductionmentioning

confidence: 99%

Perspectives on research on laser driven proton-boron fusion and applications

Batani

2023

J. Inst.

View full text Add to dashboard Cite

Recent experiments with high-intensity lasers have shown record production of α-particles by irradiating boron-hydrogen targets. This opened the way to completely new studies on proton-boron fusion with multiple goals: i) studies related to nuclear fusion. The proton-boron fusion reaction produces 3 α-particles and releases a large energy. It is considered an interesting alternative to deuterium-tritium fusion because it produces no neutrons, therefore no activation and radioactive wastes. ii) generation of novel laser-driven α-particle sources. Laser-driven α-particle sources are promising for their potential high brightness while remaining compact. They could be used for multidisciplinary applications, including medical ones. The COST Action CA21128 — PROBONO (PROton BOron Nuclear fusion: from energy production to medical applicatiOns) is the first international programme which aims at understanding the physics involved in laser-driven pB fusion, including the study of Equation of State of boron and boron compounds. Action's goals are to facilitate access to experimental infrastructures, maximize production of new knowledge, boost the career of young researchers by fostering opportunities for training, and finally interconnect researchers across countries building a well-organized community focused on pB research.

show abstract

Ammonia borane-based targets for new developments in laser-driven proton boron fusion

Picciotto,

Valt,

Molloy

et al. 2024

Applied Surface Science

View full text Add to dashboard Cite

Cross-Section Measurements of the ¹¹B(p,α)2α Reaction near the First Resonant Energy

Cited by 4 publications

References 17 publications

Alpha heating and avalanche effect simulations for low density proton-boron fusion plasma

Alpha heating and avalanche effect simulations for low density proton-boron fusion plasma

Perspectives on research on laser driven proton-boron fusion and applications

Ammonia borane-based targets for new developments in laser-driven proton boron fusion

Contact Info

Product

Resources

About