%0 Conference Proceedings %T Calculation of neutron self-shielding factor and its effect on estimating amount of sample matter in LS-PGNAA %A Nasrolahzade Zavardehi, Pooran %A Miri Hakimabad, Seyyed Hashem %A Rafat Motavali, Laleh %J کنفرانس فیزیک ایران 1389 %D 2010