مشخصات پژوهش

صفحه نخست /Neutron shielding performance ...
عنوان Neutron shielding performance of polyethylene-7% B and Al-30 wt% B4C composites fabricated via hot-press sintering
نوع پژوهش مقاله چاپ شده
کلیدواژه‌ها Hot-press Monte Carlo Neutron radiography Neutron shielding
چکیده The current research investigates the neutron shielding features of polyethylene-7% B and Al-30 wt% B4C composites fabricated via hot-press sintering. The practical analysis was conducted via Neutron radiography and Monte Carlo N-Particle (MCNP) simulation. The results illustrated that Al-30 wt% B4C with 5 mm thickness has equivalent neutron absorption properties with 14 mm thickness of PE-7% B. Composites with higher density and homogenous distribution of B4C have better neutron shield properties. Al-30 wt% B4C composite fabricated at 650 °C has a higher neutron absorption property. Experimental and simulation findings confirmed each other at lower thicknesses and Al-30 wt% B4C has better neutron shielding than PE-7% B. At thicknesses over 1 cm, the cross-sectional area of polyethylene-7% B and Al-30 wt% B4C composites are near each other. By increasing the thicknesses of composites, the relative total dose reduction and the shield properties of composites are enhanced.
پژوهشگران معصومه غایب لو (نفر اول)، حمزه فراتی راد (نفر چهارم)، زینب نقش نژاد (نفر دوم)، نفیسه عراقیان (نفر سوم)، امیر موافقی (نفر پنجم)