Neutron target research and development for BNCT: direct observation of proton induced blistering using light-polarization and reflectivity changes
Neutron target research and development for BNCT: direct observation of proton induced blistering using light-polarization and reflectivity changes
复制标题
BNCT 中子靶研发：利用光偏振和反射率变化直接观察质子引起的起泡
DOI：
10.1007/s10967-015-4056-y
复制
发表时间：
2015
期刊：
影响因子：
--
通讯作者：
M. Yoshioka
中科院分区：
文献类型：
--
作者：
T. Kurihara;H. Kobayashi;H. Matsumoto;M. Yoshioka
高功率质子辐照引起的鼓泡问题是任何中子发生靶的关键问题。当质子束照射金属时，停留在金属内部的质子捕获金属中的自由电子，形成氢气。最终，随着氢气的压力上升到足以导致破裂，表面上出现气泡和/或薄片。提出、设计并实现了一种高灵敏度、高空间分辨率的金属表面观测实验装置。该系统观察光的偏振和反射率，并已成功地检测到起泡的表面动态。
The blistering problem due to high power proton irradiation is a crucial issue for any neutron generation target. When a proton beam irradiates a metal, the protons stopped inside capture free electrons in the metal to form a hydrogen gas. Eventually, blisters and/or flakes appear on the surface as the pressure of the hydrogen gas rises enough to cause ruptures. An experimental setup for observation of the metal surface that would have high sensitivity and high spatial resolution was proposed, designed and implemented. The system observes light-polarization and reflectivity and has successfully detected blistering surface dynamics.