@article{P101.135, author={D`Asseler, Y. and Vandenberghe, S. and Matthews, C. and Koole, M. and Van de Walle, R. and Lemahieu, I. and Dierckx, R.}, title={Three-dimensional geometric sensitivity calculation for three-headed coincidence imaging}, journal={IEEE Transactions on Nuclear Science}, year={2001}, month={8}, volume={48}, number={4}, pages={1446-1451}, }