Title :
Intrinsic fast neutron sensitivity of imaging plates
Author :
Izumi, N. ; Sorce, C. ; Kyrala, G. ; Glebov, V. ; Moran, M. ; Tommasini, R. ; Kilkenny, J. ; Landen, O. ; Springer, P. ; Stoeffl, W. ; Koch, J.A.
Author_Institution :
Lawrence Livermore Nat. Lab., Livermore, CA, USA
Abstract :
Imaging plate (IP) is a phosphor which has image storage capability. Because of its immunity to electric-magnetic-interference, IP´s have been used in various laser-plasma experiments as a detector for X-ray imaging and electron spectroscopy. IP´s are sensitive to most of ionizing radiations. Response of IP´s to X-ray, gamma-ray, and charged particle exposure has been reported. However its intrinsic response to neutron exposure has not been understood clearly. In order to assess expected performance of IP´s in harsh neutron background environment of the National Ignition Facility, it is crucial to understand IP´s sensitivity to 14MeV neutrons. We exposed absolutely calibrated IP´s to known neutron flux at OMEGA laser facility. Comparison of experimental results and Monte Carlo simulations will be reported.
Keywords :
Monte Carlo methods; X-ray effects; X-ray imaging; gamma-ray effects; neutron detection; neutron effects; phosphors; Monte Carlo simulations; OMEGA laser facility; X-ray exposure; X-ray imaging; charged particle exposure; electric-magnetic interference; electron spectroscopy; electron volt energy 14 MeV; fast neutron sensitivity; gamma-ray exposure; image storage capability; imaging plate; laser-plasma experiments; neutron exposure; neutron flux; phosphor; Electrons; Image storage; Neutrons; Optical imaging; Phosphors; Spectroscopy; X-ray detection; X-ray detectors; X-ray imaging; X-ray lasers;
Conference_Titel :
Plasma Science - Abstracts, 2009. ICOPS 2009. IEEE International Conference on
Conference_Location :
San Diego, CA
Print_ISBN :
978-1-4244-2617-1
DOI :
10.1109/PLASMA.2009.5227548
