Radiological characterisation of photon radiation from ultra-high-intensity laser-plasma and nuclear interactions

R. J. Clarke, D. Neely, R. D. Edwards, P. N. M. Wright, K. W. D. Ledingham, R. Heathcote, P. McKenna, C. N. Danson, P. A. Brummitt, J. L. Collier, P. E. Hatton, S. J. Hawkes, C. Hernandez-Gomez, P. Holligan, M. H. R. Hutchinson, A. K. Kidd, W. J. Lester, D. R. Neville, P. A. Norreys, D. A. PeplerT. B. Winstone, R. W. W. Wyatt, B. E. Wyborn

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With the increasing number of multi-terawatt (10(12) W) and petawatt (10(15) W) laser interaction facilities being built, the need for a detailed understanding of the potential radiological hazards is required and their impact on personnel is of major concern. Experiments at a number of facilities are being undertaken to achieve this aim. This paper describes the recent work completed on the Vulcan petawatt laser system at the CCLRC Rutherford Appleton Laboratory, where photon doses of up to 43 mSv at 1 m per shot have been measured during commissioning studies. It also overviews the shielding in place on the facility in order to comply with the Ionising Radiation Regulations 1999 (IRR99), maintaining a dose to personnel of less than 1 mSv yr(-1) and as low as reasonably practicable (ALARP).
Original languageEnglish
Pages (from-to)277-286
Number of pages10
JournalJournal of Radiological protection
Issue number3
Publication statusPublished - 1 Sep 2006


  • laser-plasma interactions
  • plasmas
  • photon radiation
  • Vulcan petawatt laser system

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