Monte Carlo simulation of X-ray room shielding in diagnostic radiology using PHITS code

Abstract

This research was conducted to evaluate scatter distribution at an X-ray room for diagnostic radiography using the Particle and Heavy Ion Transport code System (PHITS). The X-ray room was simulated using PHITS code based on the imaging room distance and length, as well as the control console room. The exact dimensions of the rooms were used as a geometry code in PHITS to simulate a point source isotopically with 100 keV energy in the X-ray room. There are three sources situated for this study which are source directed to the imaging table, inpatient bed, and Erect Bucky. Results show that PHITS simulation and measurement have a comparable value. The control console room is considered a safe place, based on the activation source from the simulation and measurement of the experimental dose with a dose ranged from 0.0540 to 0.1090 µSv per exposure. The control room is safe to the operator unless the number of cases handled is less than 11,086 cases per year. Comparison of dose distribution based on certain points of measurement and track detection from the simulation showed an approximate result. The dose obtained from the simulation and measurement is within the dose limits recommended by ICRP-60.

Design and Evaluation of Structural Shielding of a Typical Radiotherapy Facility Using EGSnrc Monte Carlo Code

“…Furthermore, previous studies have shown that MC can be used in the evaluation of X-rays transmission through some shielding materials,[ 11 ] evaluation of the attenuation coefficient of personal radiation shielding protective clothing,[ 20 ] determination of shielding properties of concrete,[ 21 ] shielding analysis,[ 22 ] and the simulation of X-ray room shielding in diagnostic radiology. [ 23 ] However, there is a paucity of information on the application of the EGSnrc MC code in the design of radiotherapy bunker and evaluation of radiation protection around the facility.…”

Calculation of Attenuation Parameter for Ir-192 Gamma Source in Shielding Materials

“…Many studies conducted since 1970 have proved that lead (Pb-82) is effective in photon attenuation either to shield the emission of photons from radioactive sources or as a shielding material for the wall of an irradiation facility room[ 1 2 3 ] such as for diagnostic and radiotherapy room. However, the disadvantages of lead, along with its advantages, are the lead material itself is toxic and expensive.…”