ABSTRACT
A Demir1'* E Hajiyev1 H. Goktas2 and G J Tallents3 'University of Kocaeli, Department of Physics, 41200 Kocaeli, TURKEY * Laser Technologies Research and Application Center, University of Kocaeli, 41200, TURKEY 2Ankara Nucleer Research and Training Center, Ankara 06105, TURKEY 3University of York, Department of Physics, York,YO10 5DD, U.K.
