The new Sumy nuclear microprobe with single-stage quintuplet lens system
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms(2019)
摘要
The new Sumy nuclear microprobe for high resolution applications has the same beam line with the present microprobe and uses the same object and aperture collimators. The new probe-forming system is based on five magnetic quadrupole lenses of integrated design with four independent power supplies. It consists of quadrupole doublet of the present microprobe and quadrupole triplet which is allocated after the target chamber of the present microprobe. The electrostatic scanning system of a dog-leg type is located before the triplet. The new target chamber of rectangular design has an optical microscope, secondary electron detector, charged particle detector, target stage and possibility to equip additional devices. Such configuration allows one to install two microprobes for different applications at one beam line, that significantly reduces the cost of the new facility. The present paper describes the status of the new Sumy microprobe, its beam optics and design.
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关键词
Nuclear microprobe,Quadrupole lens,Probe-forming system,Collimator,Scanning system,Ion optics
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