Monte Carlo Simulation of a Silicon Strip Detector Response For Angiography Applications. First approach

We present First results of Monte Carlo simulation by the general purpose MCNP‐4C transport code of an experimental facility at Bologna S. Orsola hospital for studying the possible application of a X‐Ray detection system based on a silicon strip detector on a dual energy angiography. The quasi‐monochromatic X‐ray beam with the detector in the edge‐on configuration has been used to acquire images of a test object at two different energies (namely 31 and 35 keV) suitable for the K‐edge subtraction angiography application. As a test object a Plexiglas step wedge phantom with four cylindrical cavities, having 1 mm diameter was used. The cavities have been drilled and filled, with iodated contrast medium, whose concentration varied from 370 mg/ml to 92 mg/ml. Both the profiles obtained from measurements and the generated images where reproduced by computer simulation on a first approach to use this technique as an evaluation tool for future developments on the experimental setup.