Effect of 14 MeV neutrons on the optical properties of CR-39 detectorGouri Shankar Sahoo, S.P. Tripathy, Shuvendu Jena, Deepak Sakharam Joshi and Tapas BandyopadhyayEur. Phys. J. Appl. Phys., 65 1 (2014) 10701DOI: https://doi.org/10.1051/epjap/2013130391