富士胶片BAS-TR成像板对激光加速钛离子的响应函数。

The response function of Fujifilm BAS-TR imaging plates to laser-accelerated titanium ions.

作者信息

Strehlow J, Forestier-Colleoni P, McGuffey C, Bailly-Grandvaux M, Daykin T S, McCary E, Peebles J, Revet G, Zhang S, Ditmire T, Donovan M, Dyer G, Fuchs J, Gaul E W, Higginson D P, Kemp G E, Martinez M, McLean H S, Spinks M, Sawada H, Beg F N

机构信息

Department of Mechanical and Aerospace Engineering, University of California-San Diego, La Jolla, California 92093, USA.

Department of Physics, University of Nevada, Reno, Nevada 89557, USA.

出版信息

Rev Sci Instrum. 2019 Aug;90(8):083302. doi: 10.1063/1.5109783.

DOI:10.1063/1.5109783

PMID:31472598

Abstract

Calibrated diagnostics for energetic particle detection allow for the systematic study of charged particle sources. The Fujifilm BAS-TR imaging plate (IP) is a reusable phosphorescent detector for radiation applications such as x-ray and particle beam detection. The BAS-TR IP has been absolutely calibrated to many low-Z (low proton number) ions, and extending these calibrations to the mid-Z regime is beneficial for the study of laser-driven ion sources. The Texas Petawatt Laser was used to generate energetic ions from a 100 nm titanium foil, and charge states Ti through Ti, ranging from 6 to 27 MeV, were analyzed for calibration. A plastic detector of CR-39 with evenly placed slots was mounted in front of the IP to count the number of ions that correspond with the IP levels of photo-stimulated luminescence (PSL). A response curve was fitted to the data, yielding a model of the PSL signal vs ion energy. Comparisons to other published response curves are also presented, illustrating the trend of PSL/nucleon decreasing with increasing ion mass.

摘要

用于高能粒子探测的校准诊断技术有助于对带电粒子源进行系统研究。富士胶片BAS - TR成像板（IP）是一种可重复使用的磷光探测器，用于诸如X射线和粒子束探测等辐射应用。BAS - TR成像板已针对许多低Z（低质子数）离子进行了绝对校准，将这些校准扩展到中等Z范围有利于激光驱动离子源的研究。德克萨斯拍瓦激光器用于从100纳米厚的钛箔中产生高能离子，并对电荷态从Ti到Ti、能量范围为6至27兆电子伏特的离子进行分析以进行校准。在成像板前方安装了一个带有均匀分布狭槽的CR - 39塑料探测器，以计数与光激发发光（PSL）的成像板水平相对应的离子数量。对数据拟合出一条响应曲线，得出PSL信号与离子能量的模型。还给出了与其他已发表的响应曲线的比较，展示了PSL/核子随离子质量增加而降低的趋势。