Simulation of X-ray irradiation on human hand

The authors used the MCNP Monte Carlo code for the simulation of a human hand X-rays irradiation with radiodiagnostic energies. They calculated bone dose considering a human hand with soft tissue -water- and bones composed with biological tissue -C, H, O, N, Mg, P, Ca and S-. The authors´ geometry considers a hand irradiated with a million X-rays photons from a punctual source at a distance of 70 cm. These photons are directed and distributed inside an air conic angle on the hand. To economise computing time, the authors consider empty the part outside the cone. For the physics interpretation from the results obtained with the MCNP code, the authors performed a bone dose estimate considering: a) bone material (water, calcium and bone tissue); b) bone thickness (0.01; 0.1; 0.5; 1.0; 1.5 and 3.0 cm) and c) source-hand distance (30, 50, 70, 90 cm). The authors calculate photon transmission percent through soft tissue and bone tissue from the number of photons that reach the radiographic film after passing through soft tissue or bone tissue for the human hand and its geometric configuration