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Free electron relativistic correction factors to collisional excitation and ionisation rates in a plasma

Abstract:
This paper presents approximate correction factors to collisional excitation and ionisation rates which account for special relativity in the free electron motion as a function of free electron temperature and the threshold energy of the reaction. These are calculated by taking the ratio of collisional rates derived from simple empirical cross sections using relativistic and non-relativistic mechanics. These results are extended to de-excitation and three body recombination rates using detailed balance. It is found that the relativistic correction is significant in regimes potentially important to galactic intracluster media and diagnostic dopants in burning ICF plasmas.
Publication status:
Published
Peer review status:
Peer reviewed

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Publisher copy:
10.1016/j.hedp.2019.100716

Authors


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Institution:
University of Oxford
Division:
MPLS
Department:
Physics
Sub department:
Atomic & Laser Physics
Role:
Author
ORCID:
0000-0001-6808-6355


Publisher:
Elsevier
Journal:
High Energy Density Physics More from this journal
Volume:
33
Article number:
100716
Publication date:
2019-09-26
Acceptance date:
2019-09-26
DOI:
ISSN:
1574-1818


Language:
English
Keywords:
Pubs id:
pubs:1059874
UUID:
uuid:11a0834d-dc0e-438b-a736-b0f4a9be5292
Local pid:
pubs:1059874
Source identifiers:
1059874
Deposit date:
2019-10-03

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