@article{paperid:1009725, author = {حسین توکلی عنبران and Miri Hakimabad, Seyyed Hashem and Izadi Najafabadi, Reza}, title = {Effects of the Detector-Collimator on the Gamma-Ray Response Function for a NaI(Tl) Detector in a Constant Time of Counts}, journal = {Journal of Applied Sciences}, year = {2009}, volume = {9}, number = {8}, month = {March}, issn = {1812-5654}, pages = {1550--1555}, numpages = {5}, keywords = {NaI(Tl) detector; detector-collimator; gamma-ray response function; NaI(Tl) demension}, }