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

Abstract:

Neutron 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 thi...

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Publisher copy:
10.1088/0741-3335/47/11/L01

Authors


Norreys, PA More by this author
Lancaster, KL More by this author
Davies, JR More by this author
Mendonça, JT More by this author
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Journal:
Plasma Physics and Controlled Fusion
Volume:
47
Issue:
11
Pages:
L49-L56
Publication date:
2005-11-01
DOI:
EISSN:
1361-6587
ISSN:
0741-3335
URN:
uuid:2af1731e-64da-406b-8f12-01a696478f81
Source identifiers:
353781
Local pid:
pubs:353781
Language:
English

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