摘要
将类丁二炔化合物自组装成纳米囊泡后,均匀分散于凝胶载体中,研制出-种新型的辐射变色凝胶剂量计.用电镜观测了囊泡形貌,采用CL-1000型紫外交联仪对凝胶进行辐照,测试并研究了凝胶对紫外辐照的变色响应、辐射后效应、扩散效应等剂量学性能.结果表明：该辐射变色凝胶在5～150mJ/cm2 能量密度范围内对紫外线辐照具有良好的响应线性,同时克服了扩散效应、辐射后效应、成型能力差等现有凝胶剂量计的不足.该辐射变色凝胶剂量计适于光学扫描方式测量剂量分布.
A novel radiochromic gel dosimeter was developed through dispersing nanovesicles self assembled by diacetylene into the gel matrix. The vesicle morphology was observed through electron microscopy; The radiochromic gels were irradiated by CL 1000 UV crosslinker and their dosimetry performance was tested and studied. Results indicate that these radiochromic gels have good linear response to UV irradiation in the energy density range of 5～150 mJ/cm2. In addition, the radiochromic gels o vercome the limitations of the existing gel dosimeter such as diffusion effect, post radiation effect, and poor forming ability. Hence, the radiochromic diacetylene vesicle gel dosimeters developed could be generally applied to 3D dose distribution measure ment with optical readout.
出处
《强激光与粒子束》
EI
CAS
CSCD
北大核心
2015年第7期272-277,共6页
High Power Laser and Particle Beams
基金
国家自然科学基金项目(81301934)
中国工程物理研究院科学技术发展基金项目(2013B0301035)
关键词
辐射变色凝胶
纳米囊泡
紫外辐照
辐射后效应
扩散效应
radiochromic gel nanovesicle ultraviolet irradiation post radiation effect diffusion effect
