Runaway positrons in tokamak plasmas

T. Fülöp, G. Papp

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

Runaway positrons can be produced in the presence of runaway electron avalanches in magnetized plasmas. Almost all the positrons generated by avalanching runaways will run away and are expected to have lifetimes of several seconds. For an avalanching positron distribution typical of tokamak plasmas the maximum of the synchrotron radiation spectrum should be around a micron. The radiated power is sensitive to many plasma parameters, specially the number of impurities, temperature and density. Apart from its intrinsic interest, detection of radiation from positrons could be a diagnostic tool to understand the properties of the annihilation medium.

Original languageEnglish
Title of host publication39th EPS Conference on Plasma Physics 2012, EPS 2012 and the 16th International Congress on Plasma Physics
Pages1318-1321
Number of pages4
Publication statusPublished - Dec 1 2012
Event39th EPS Conference on Plasma Physics 2012, EPS 2012 and the 16th International Congress on Plasma Physics - Stockholm, Sweden
Duration: Jul 2 2012Jul 6 2012

Publication series

Name39th EPS Conference on Plasma Physics 2012, EPS 2012 and the 16th International Congress on Plasma Physics
Volume2

Other

Other39th EPS Conference on Plasma Physics 2012, EPS 2012 and the 16th International Congress on Plasma Physics
CountrySweden
CityStockholm
Period7/2/127/6/12

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ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this

Fülöp, T., & Papp, G. (2012). Runaway positrons in tokamak plasmas. In 39th EPS Conference on Plasma Physics 2012, EPS 2012 and the 16th International Congress on Plasma Physics (pp. 1318-1321). (39th EPS Conference on Plasma Physics 2012, EPS 2012 and the 16th International Congress on Plasma Physics; Vol. 2).