Simulation and measurement of x-ray scattered radiation in radiodiagnosis

This work aims to mea sure the scat tered ra di a tion en ergy spec trum and ra di a tion dose at different positions during radiological diagnosis through the Monte Carlo simulation and exper i ment. The re sults show that the av er age en ergy of the scat tered ra di a tion en ergy spec trum in creases with the in crease of the tube volt age and de creases with the in crease of the scat ter ing an gle, but it changes very lit tle with the mea sur ing dis tance. It is not uni fied for the scat tered ra di a tion dis tri bu tion in the space around the wa ter phan tom at the same tube volt age, and the ex po sure to scat tered ra di a tion is greater on the side closer to the wa ter phan tom or the X-ray tube. This in di cates that the ra di a tion ex po sure is not uni fied for med i cal staff in the scattered radiation field. The scattering energy spectrum and dose distribution are helpful to evaluate the scattered radiation exposure and enhance the self-protection awareness of medical staff in prac tice.