TL in halosulphate phosphors prepared by wet chemical method S. C. Gedam, S. J. Dhoble, S. K. Omanwar and S. V. Moharil Eur. Phys. J. Appl. Phys., 39 1 (2007) 39-43 Published online: 28 June 2007 DOI: 10.1051/epjap:2007108