Published October 2, 2006 | Version v1
Journal article

Detection of short lived radioisotopes as a fast diagnostic for intense laser-solid interactions

  • 1. Department of Physics and Astronomy, Queens University Belfast, Belfast BT7 1NN, Northern Ireland (United Kingdom)
  • 2. Department of Physics, Lund Institute of Technology, P.O. Box 118, S-221 00 Lund (Sweden)
  • 3. CCLRC Rutherford Appleton Laboratory, Chilton, Didcot, Oxfordshire OX11 OQX (United Kingdom)
  • 4. SUPA, Department of Physics, University of Strathclyde, Glasgow G4 0NG, Scotland (United Kingdom)

Description

As a diagnostic of high-intensity laser interactions (>1019 W cm-2), the detection of radioactive isotopes is regularly used for the characterization of proton, neutron, ion, and photon beams. This involves sample removal from the interaction chamber and time consuming post shot analysis using NaI coincidence counting or Ge detectors. This letter describes the use of in situ detectors to measure laser-driven (p,n) reactions in 27Al as an almost real-time diagnostic for proton acceleration. The produced 27Si isotope decays with a 4.16 s half-life by the predominantly β+ emission, producing a strong 511 keV annihilation peak

Additional details

Identifiers

Publishing Information

Journal Title
Applied Physics Letters
Journal Volume
89
Journal Issue
14
Journal Page Range
p. 141117-141117.3
ISSN
0003-6951
CODEN
APPLAB

Optional Information

Notes
(c) 2006 American Institute of Physics