X-ray tube design based on current and voltage of X-ray tube

Cargo inspection systems using X-Ray that is widely used in airports and transportation systems are play an important role in supplying the countries security. In this study, the X-Ray production system and its body has been simulated using MCNPX2.6 Monte Carlo code. In X-Ray lamp of this system, the energy of electrons emitted to anode is 160 keV and its current is 0.6 mA. The tungsten anode is located in glass chamber of X-ray lamp with distance of 5.3 from cathode. The considered tunnel’s dimensions are 120cm in Z (object path), 100cm in Y (align with X-ray lamp) and 100cm in X. the body of tunnel has 1mm lead and 2mm iron. The dose rate in 1cm in and out of the tunnel (leaked dose) is calculated using MCNPX2.6. The most amount of dose is in center of the tunnel exactly below the X-ray lamp and dose in 4 sides of outer of the tunnel is less than 5 μSv/h. these results show that the 1mm thickness of lead and 2mm thickness of iron is appropriate for tunnel body