Radiography simulation on single-shot dual-spectrum X-ray for cargo inspection system.
We propose a method to identify materials in the dual energy X-ray (DeX) inspection system. This method identifies materials by combining information on the relative proportions T of high-energy and low-energy X-rays transmitted through the material, and the ratio R of the attenuation coefficient of the material when high-energy are used to that when low energy X-rays are used. In Monte Carlo N-Particle Transport Code (MCNPX) simulations using the same geometry as that of the real container inspection system, this T vs. R method successfully identified tissue-equivalent plastic and several metals. In further simulations, the single-shot mode of operating the accelerator led to better distinguishing of materials than the dual-shot system.
School of Environmental Science and Engineering, Pohang University of Science and Technology, Pohang, Republic of Korea.
Youngmi
Y
Gil
Youngdo
Y
Oh
Moohyun
M
Cho
Won
W
Namkung