Temperature measurements of fusion plasmas produced by Petawatt-laser- irradiated D

W. Bang, M. Barbui, A. Bonasera, G. Dyer, H.J. Quevedo, K. Hagel, K. Schmidt, F. Consoli, R. De Angelis, P. Andreoli, E. Gaul, A.C. Bernstein, M. Donovan, M. Barbarino, S. Kimura, M. Mazzocco, J. Sura, J.B. Natowitz, T. Ditmire

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Two different methods have been employed to determine the plasma temperature in a laser-cluster fusion experiment on the Texas Petawatt laser. In the first, the temperature was derived from time-of-flight data of deuterium ions ejected from exploding D2or CD4clusters. In the second, the temperature was measured from the ratio of the rates of two different nuclear fusion reactions occurring in the plasma at the same time: D(d,He3)n and He3(d,p)He4. The temperatures determined by these two methods agree well, which indicates that (i) the ion energy distribution is not significantly distorted when ions travel in the disassembling plasma; (ii) the kinetic energy of deuterium ions, especially the "hottest part" responsible for nuclear fusion, is well described by a near-Maxwellian distribution. © 2013 American Physical Society.
Original languageEnglish
Article number055002
Pages (from-to)-
JournalPhysical Review Letters
Issue number5
Publication statusPublished - 30 Jul 2013
Externally publishedYes


All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

Cite this

Bang, W., Barbui, M., Bonasera, A., Dyer, G., Quevedo, H. J., Hagel, K., ... Ditmire, T. (2013). Temperature measurements of fusion plasmas produced by Petawatt-laser- irradiated D. Physical Review Letters, 111(5), -. [055002]. https://doi.org/10.1103/PhysRevLett.111.055002