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.

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