A Method for Increasing X-ray Protection Capability Based on Photonic Crystal Technology
LI Ping
QIAO Xiao-lan
ZHAO Peng
LUO En-si
YANG Chao
摘要：In this paper, we propose a method to improve anti-radiation capability by coating heavy metal X-ray protection glass with compound photonic crystal layers, based on the unique property of photonic crystal that light cannot be propagated within the range of band gaps. Using the plane wave expansion method, we made a theoretical study of parameters affecting the band gap structures of one-dimensional photonic crystals. Based on the findings, we chose appropriate materials and compound structure of photonic crystal so as to get high X-ray reflection coating photonic crystal layers. By this method, the reflection rate within X-ray wavelength can reach the maximum value of 100%, and the average value of over 90%. Even low-cost heavy metal X-ray protection glass of absorption coefficient value can achieve the desired effect. Thus, this method greatly decreases the anti-radiation requirements of heavy X-ray protection glass.
机标关键词：photonic crystalsplane wave expansion methodheavy metalabsorption coefficientcompound structuretheoretical studyreflection ratemaximum value
分类号：R142(放射卫生)
论文发表日期：2016-01-01
在线出版日期：2025-08-15（本平台首次上网日期，不代表文献的发表时间）
页数：5( 76-80 )
英文信息