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Observation of ion temperatures exceeding background electron temperatures in petawatt laser-solid experiments

Norreys P. A. , Lancaster K. L., Habara H., Davies J. R., Mendonça, José Tolentino, 1965-, Clarke R. J., Dromey B., Gopal A., Karsch S., Kodama R., Krushelnick K., Moustaizis Stavros, Stoeckl C., Tatarakis, M, Tampo M., Vakakis Nikos, Wei M. S., Zepf, Markus, 1972-

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URIhttp://purl.tuc.gr/dl/dias/58E8BCA5-4ADB-4829-AA1F-490D41959ED6-
Identifierhttp://iopscience.iop.org/article/10.1088/0741-3335/47/11/L01/pdf-
Identifierhttps://doi.org/10.1088/0741-3335/47/11/L01-
Languageen-
TitleObservation of ion temperatures exceeding background electron temperatures in petawatt laser-solid experimentsen
CreatorNorreys P. A. en
CreatorLancaster K. L.en
CreatorHabara H.en
CreatorDavies J. R.en
CreatorMendonça, José Tolentino, 1965-en
CreatorClarke R. J.en
CreatorDromey B.en
CreatorGopal A.en
CreatorKarsch S.en
CreatorKodama R.en
CreatorKrushelnick K.en
CreatorMoustaizis Stavrosen
CreatorΜουσταιζης Σταυροςel
CreatorStoeckl C.en
CreatorTatarakis, Men
CreatorTampo M.en
CreatorVakakis Nikosen
CreatorΒακακης Νικοςel
CreatorWei M. S.en
CreatorZepf, Markus, 1972-en
PublisherIOP Publishingen
Content SummaryNeutron time of flight signals have been observed with a high resolution neutron spectrometer using the petawatt arm of the Vulcan laser facility at Rutherford Appleton Laboratory from plastic sandwich targets containing a deuterated layer. The neutron spectra have two elements: a high-energy component generated by beam-fusion reactions and a thermal component around 2.45 MeV. The ion temperatures calculated from the neutron signal width clearly demonstrate a dependence on the front layer thickness and are significantly higher than electron temperatures measured under similar conditions. The ion heating process is intensity dependent and is not observed with laser intensities on target below 1020 W cm−2. The measurements are consistent with an ion instability driven by electron perturbations.en
Type of ItemPeer-Reviewed Journal Publicationen
Type of ItemΔημοσίευση σε Περιοδικό με Κριτέςel
Licensehttp://creativecommons.org/licenses/by/4.0/en
Date of Item2015-11-15-
Date of Publication2005-
SubjectCapture gamma ray spectroscopy, Neutronen
SubjectNeutron capture spectroscopyen
SubjectSpectroscopy, Neutron captureen
Subjectneutron capture gamma ray spectroscopyen
Subjectcapture gamma ray spectroscopy neutronen
Subjectneutron capture spectroscopyen
Subjectspectroscopy neutron captureen
Bibliographic CitationP. A. Norreys, K. L. Lancaster, H. Habara, J. R. Davies, J. T. Mendonc¸ R. J. Clarke, B. Dromey, A. Gopal, S. Karsch, R. Kodama, K. Krushelnick, S.D. Moustaizis, C. Stoeckl, M. Tatarakis, M. Tampo, N. Vakakis, M. S. Wei and M. Zepf, "Observation of ion temperatures exceeding background electron temperatures in petawatt laser-solid experiments", Plasma Physics Controlled Fusion, vol. 47, pp. L49–L56, Nov. 2005. doi: 10.1088/0741-3335/47/11/L01en

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