Siketić Zdravko, Skukan Natko, Bogdanović Radović Iva
Ruđer Bošković Institute, Bijenička cesta 54, 10000 Zagreb, Croatia.
Rev Sci Instrum. 2015 Aug;86(8):083301. doi: 10.1063/1.4927605.
In this paper, time-of-flight elastic recoil detection analysis spectrometer with a newly constructed gas ionization detector for energy detection is presented. The detector is designed in the axial (Bragg) geometry with a 3 × 3 array of 50 nm thick Si3N4 membranes as an entrance window. 40 mbar isobutane gas was sufficient to stop a 30 MeV primary iodine beam as well as all recoils in the detector volume. Spectrometer and detector performances were determined showing significant improvement in the mass and energy resolution, respectively, comparing to the spectrometer with a standard silicon particle detector for an energy measurement.
本文介绍了一种飞行时间弹性反冲探测分析光谱仪，它配备了一个新构建的用于能量探测的气体电离探测器。该探测器采用轴向（布拉格）几何结构设计，有一个由50纳米厚的Si3N4膜组成的3×3阵列作为入射窗。40毫巴的异丁烷气体足以在探测器体积内阻止30兆电子伏特的初级碘束以及所有反冲粒子。确定了光谱仪和探测器的性能，与使用标准硅粒子探测器进行能量测量的光谱仪相比，质量分辨率和能量分辨率分别有显著提高。
