The effects of ion temperature on the energy spectra of T + T → 2n + α reaction products
File(s)
Accepted version
Author(s)
Appelbe, B
Chittenden, J
Type
Journal Article
Abstract
The effects of ion temperature on the energy spectra of products of the T + T → 2n + α reaction are modelled and analysed. A model is derived by assuming that the spectra in the centre of mass (CM) frame for a given reaction energy are known. The model is then applied to two different sets of data for the energy spectra in the CM frame. In both cases, it is shown that varying the ion temperature causes significant changes in the shapes of the n and α spectra. For the n spectrum, the apparent intensity of sequential decay through the ground state of 5He decreases with increasing temperature. For the α spectrum, the sharp edge in the CM frame spectrum near 3.75 MeV caused by the dineutron reaction channel results in a thermally broadened spectrum with a high-energy tail at energies > 4 MeV. Knowledge of such features may help to interpret data from experiments designed to investigate the T + T reaction at low reaction energies.
Date Issued
2016-03-02
Date Acceptance
2016-02-16
Citation
High Energy Density Physics, 2016, 19, pp.29-37
ISSN
1574-1818
Publisher
Elsevier
Start Page
29
End Page
37
Journal / Book Title
High Energy Density Physics
Volume
19
Copyright Statement
© 2016 Elsevier. Licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/
Sponsor
AWE Plc
Engineering & Physical Science Research Council (EPSRC)
Grant Number
300115146/1
EP/K028464/1
Subjects
Fluids & Plasmas
02 Physical Sciences
Publication Status
Published