| Abstrakt: |
As a material commonly used as a shield for X-ray radiation, lead has a major weakness, it is a heavy metal that can be toxic to the environment. Therefore, it is necessary to innovate X-ray radiation shielding materials that are better than lead, one of which is tungsten which is also proven to be able to function as a radiation shielding. However, radiation shieldings, generally in the form of plates, have weaknesses, including being heavier and uneconomical. Therefore, metal foam technology has been developed, which is expected to produce X-ray radiation shielding with a lower density than the plate form but almost the same performance as the plate form. In this study, simulation has been carried out to calculate the X-ray transmission through tungsten and lead in the form of plate and metal foam for thickness 5-40 mm, diameter 0.5; 1; 1.5; 2, 3, and 4 mm at energy 0.1; 0.662; and 1 MeV. The modeling of plate and foam metal was carried out using the Monte Carlo N-Particle version 6 (MCNP6) code. The result of X-ray transmission calculation on the thickness of 0.5 to 4 cm, diameter 0.5; 1; 1.5; 2, 3, and 4 mm at the energy 0.1; 0.662; and 1 MeV shows that the performance of tungsten (W) both in the form of plate and metal foam is better than lead material, while in the form of metal foam, the ability of tungsten (W) is close to that of lead (Pb) plate when the diameter of tungsten (W) are 1.5 to 2 mm. From the result of the analysis, it can be concluded that technology of tungsten metal foam can be used as an effective and environmentally friendly X-ray radiation shielding. [ABSTRACT FROM AUTHOR] |
