Development of Kyropoulos-grown SrB4O7 single crystals as gamma-ray radiation-resistant optical window materials

泡生法生长的 SrB4O7 单晶作为抗伽马射线辐射光学窗口材料的开发

• 批准号: 21K14562
• 负责人: EMPIZO MELVIN
• 金额: $ 2.75万
• 依托单位: Osaka University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Early-Career Scientists
• 财政年份: 2021
• 资助国家: 日本
• 起止时间: 2021-04-01 至 2024-03-31
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-21K14562/
• 关键词: Optical material; Crystal growth; Gamma ray; Irradiation; Spectroscopy

SrBrO7 (SBO) single crystals have been successfully fabricated by Kyropolous growth method using different growth parameters including precursor purity and growth rate. The as-grown crystals were subsequently characterized using analytical techniques such as optical microscopy, vacuum ultraviolet (VUV) transmittance spectroscopy, and x-ray diffraction spectroscopy. Laser-induced damage investigations have also been performed through single-shot and multi-shot irradiation. High-quality, b-axis-oriented SBO single crystals with 100-mm dimensions (large), up to 80 % VUV transmittances, and high deep ultraviolet (DUV) laser-induced damage resistance have been successfully prepared by Kyropolous growth method. These results have already been submitted for publication with one paper just recently been accepted and the other under review.

SRBRO7（SBO）单晶已通过Kyropolous Growth方法成功制造，使用了不同的生长参数，包括前体的纯度和生长速率。随后使用分析技术（例如光学显微镜，真空紫外线（VUV）透射光谱和X射线衍射光谱法）对生长的晶体进行表征。激光诱导的损伤调查也通过单发和多弹射进行了。高质量的，面向B轴的SBO单晶具有100毫米尺寸（较大），高达80％的VUV透射率以及高紫外线（DUV）激光诱导的高紫外线（DUV），已通过Kyropolos Growth方法成功制备了。这些结果已经提交了最近的一份论文，刚刚被接受，另一篇文章正在审查中。