磁四极透镜滞回对核扫描微探针中变能离子束聚焦的影响

IF 0.8 4区物理与天体物理 Q4 PHYSICS, APPLIED

Technical Physics Letters Pub Date : 2013-05-17 DOI:10.1134/S1063785013040123

A. V. Romanenko, A. G. Ponomarev

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引用次数: 1

摘要

实验研究了磁四极透镜的磁滞对俄国分离四极组形探针成形系统中聚焦目标的光束横向尺寸的影响。在核扫描微探针中使用质子束进行测量，离子能量在0.8-1.6 MeV之间变化。光束的大小是通过处理在校准的微米方网扫描过程中测量的二次电子发射剖面来确定的。提出了一种新的方法，可以使核微探针中具有可变能量的光束聚焦，从而使探针的尺寸保持在预先设定的范围内。

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The effect of magnetic quadrupole lens hysteresis on the focusing of an ion beam with variable energy in a nuclear scanning microprobe

The influence of the hysteresis of magnetic quadrupole lenses on the transverse size of a beam focused on the target in a probe-forming system with a separated Russian quadruplet configuration has been experimentally studied. The measurements were performed in a nuclear scanning microprobe using a proton beam with the ion energy varied within 0.8–1.6 MeV. The beam size was determined by processing the secondary electron emission profiles measured during scanning of a calibrated micrometric square mesh. A new approach is proposed that allows a beam with variable energy in the nuclear microprobe to be focused so as to keep the probe size within preset limits.

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来源期刊

Technical Physics Letters 物理-物理：应用

CiteScore

1.50

自引率

0.00%

发文量

审稿时长

2-4 weeks

期刊介绍： Technical Physics Letters is a companion journal to Technical Physics and offers rapid publication of developments in theoretical and experimental physics with potential technological applications. Recent emphasis has included many papers on gas lasers and on lasing in semiconductors, as well as many reports on high Tc superconductivity. The excellent coverage of plasma physics seen in the parent journal, Technical Physics, is also present here with quick communication of developments in theoretical and experimental work in all fields with probable technical applications. Topics covered are basic and applied physics; plasma physics; solid state physics; physical electronics; accelerators; microwave electron devices; holography.