2H(p,γ)3He cross section measurement using high-energy-density plasmas

An absolute cross section for the radiative capture reaction 2H(p,γ)3He has been measured at the OMEGA laser facility using inertially confined plasmas. These high-temperature plasmas are created by imploding a fuel-containing capsule using laser ablation, and are advantageous in that they better mi...

Full description

Saved in:
Bibliographic Details
Published in:Physical review. C 2020-04, Vol.101 (4)
Main Authors: Zylstra, A. B., Herrmann, H. W., Kim, Y. H., McEvoy, A., Frenje, J. A., Johnson, M. Gatu, Petrasso, R. D., Glebov, V. Yu, Forrest, C., Delettrez, J., Gales, S., Rubery, M.
Format: Article
Language:English
Subjects:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
a ≤ 5
big bang nucleosynthesis
gravitation, cosmology & astrophysics
inertial confinement fusion
nuclear fusion
nuclear physics
plasma physics
radiative capture
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:An absolute cross section for the radiative capture reaction 2H(p,γ)3He has been measured at the OMEGA laser facility using inertially confined plasmas. These high-temperature plasmas are created by imploding a fuel-containing capsule using laser ablation, and are advantageous in that they better mimic astrophysical systems. We measure an S factor for this reaction of 0.429 ± 0.026stat ± 0.072sys eV b at Ec.m. = 16.35 ± 0.40 keV, which is higher than the adopted evaluations. Furthermore, this reaction is important as a source of nuclear energy in protostars and brown dwarfs. It is also a critical reaction during big-bang nucleosynthesis, and an accurate cross section can be used as a constraint on cosmology.
ISSN:2469-9985
2469-9993