Becker R, Kester O
IAP, Universität Frankfurt, Max von Laue-Strasse 1, Frankfurt, Germany.
Rev Sci Instrum. 2008 Feb;79(2 Pt 2):02B721. doi: 10.1063/1.2822112.
An in-line particle detector (IPD) uses secondary electrons for the detection of multiply charged ions with low to medium energy (10-10 keV). The ion detector does not physically intercept the ion beam line and is fully transparent to ions without applied voltages. The activation of the detector is performed by applying appropriate voltages to electrodes, which avoids any physical movement. Equipped with a channel electron multiplier, single particle counting is possible as well as measurement of currents. This detector therefore has a large dynamical range from about 10(-17) to 10(-3) A. The basic principle also allows for ion beam diagnostics.
在线粒子探测器(IPD)利用二次电子来检测能量在低到中等范围(10 - 10 keV)的多电荷离子。该离子探测器不会物理拦截离子束线,在未施加电压时对离子完全透明。通过向电极施加适当电压来激活探测器,这避免了任何物理移动。配备有通道电子倍增器,既可以进行单粒子计数,也可以测量电流。因此,该探测器具有大约从10^(-17)到10^(-3) A的大动态范围。其基本原理还可用于离子束诊断。