Siketić Zdravko, Radović Iva Bogdanović, Jaksić Milko, Skukan Natko
Institute Ruder Bosković, P.O. Box 180, 1000 Zagreb, Croatia.
Rev Sci Instrum. 2010 Mar;81(3):033305. doi: 10.1063/1.3356976.
A position sensitive detection system based on the microchannel plate detector has been constructed and installed at the existing time of flight (TOF) spectrometer in order to perform a kinematic correction and improve the surface time/depth resolution of elastic recoil detection analysis (ERDA) system. The position resolution of the detector has been tested for different types of ions and anode voltages. TOF spectra of recoiled O ions from SiO(2) and F from CaF(2) were collected in coincidence with position sensitive detector signal. Kinematic correction of TOF spectra improved surface time/depth resolution by approximately 20% for our system; however even higher improvements could be obtained in larger solid angle TOF-ERDA systems.
基于微通道板探测器构建了一个位置敏感检测系统，并将其安装在现有的飞行时间（TOF）光谱仪上，以进行运动学校正并提高弹性反冲探测分析（ERDA）系统的表面时间/深度分辨率。已针对不同类型的离子和阳极电压测试了探测器的位置分辨率。与位置敏感探测器信号同时采集了来自SiO₂的反冲O离子和来自CaF₂的F的TOF光谱。对于我们的系统，TOF光谱的运动学校正使表面时间/深度分辨率提高了约20%；然而，在更大立体角的TOF-ERDA系统中可以获得更高的改进。
