RESEARCH ON THE CHEMICAL COMPOSITION OF THE RADIATION RESISTANCE LAYER ON X-RAY PROTECTIVE APRON FOR MEDICAL USE

Abstract

X-ray protective apron is an indispensable equipment for medical staff and
patients when using ionizing radiation equipment such as: X-ray, CT tomography,
cancer radiation therapy... In which the middle lining of this apron is a composite
material that performs the function of radiation resistance. Research the chemical
composition of this radiation resistance layer to see which materials bring the
ability to block X-ray radiation for this apron, use it as a scientific basis for the
selection and research of radiation protective aprons. The research results of a
Longkou Double Eagle apron 0.35mmPb have determined that the geometric
thickness of the radiation resistance layer is 0.96mm, the ShoreA compression
stiffness is 76SoA, the area weight is 0.446g/cm2. The material of the radiation
resistance layer has a chemical composition of seven elements: C, O, S, As, Zr, Ba
and Pb. In which four heavy metal elements As, Zr, Ba and Pb together with
compounds PbO, PbS2, BaSO4 are substances with high ability to absorb ionizing
radiation. With the percentage of lead element accounting for nearly 44 %weight,
this x-ray protective apron belongs to the group of lead aprons.