Measurements of the Differential Cross Sections for the Elastic $n\text{-}{}^3\mathrm{H}$ and $n\text{-}{}^2\mathrm{H}$ Scattering at 14.1 MeV by Using an Inertial Confinement Fusion Facility

Journal Article · Thu Sep 15 00:00:00 EDT 2011 · Physical Review Letters

DOI:https://doi.org/10.1103/PhysRevLett.107.122502· OSTI ID:1211957

Frenje, J. A. ^[1]; Li, C. K. ^[1]; Seguin, F. H. ^[1]; Casey, D. T. ^[1]; Petrasso, R. D. ^[1]; McNabb, D. P. ^[2]; Navratil, P. ^[2]; Quaglioni, S. ^[2]; Sangster, T. C. ^[3]; Glebov, V. Y. ^[3]; Meyerhofer, D. D. ^[3]

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1. MIT (Massachusetts Inst. of Technology), Cambridge, MA (United States)
2. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
3. Univ. of Rochester, NY (United States)

For the first time the differential cross section for the elastic neutron-triton (n-³H) and neutron-deuteron (n-²H) scattering at 14.1 MeV has been measured by using an inertial confinement fusion facility. In these experiments, which were carried out by simultaneously measuring elastically scattered ³H and ²H ions from a deuterium-tritium gas-filled inertial confinement fusion capsule implosion, the differential cross section for the elastic n-³H scattering was obtained with significantly higher accuracy than achieved in previous accelerator experiments. The results compare well with calculations that combine the resonating-group method with an ab initio no-core shell model, which demonstrate that recent advances in ab initio theory can provide an accurate description of light-ion reactions.

• Research Organization: Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
• Sponsoring Organization: USDOE Office of Science (SC), Fusion Energy Sciences (FES)
• DOE Contract Number: NA0000877; FG03-03SF22691; 412160-001G; B504974; AC52-06NA27279
• OSTI ID: 1211957
• Journal Information: Physical Review Letters, Vol. 107, Issue 12; ISSN 0031-9007: PRLTAO
• Publisher: American Physical Society (APS)
• Country of Publication: United States
• Language: English