CCD模数转换精度和响应均匀性对小型激光焦斑测量的影响

IF 1.1 4区物理与天体物理 Q4 PHYSICS, APPLIED Laser and Particle Beams Pub Date : 2021-01-22 DOI:10.1155/2021/6664228

Xiaoyan Liu, D. Ba, Deqiang Jiao, Xiangxin Shao, Xingjun Mu, Ying Wang

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引用次数: 0

摘要

CCD二维蛇形扫描方法为测量小于1个CCD像素的小尺度光斑提供了一种有效的解决方案。研究了CCD的A/D转换数和响应均匀性对测量误差的影响。当A/D转换数为20时，测量误差可以忽略。当超高斯函数阶数为10时，CCD像元非均匀响应的最大误差值为0.7 μm。研究结果可用于指导实验。

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Influences of Analog-to-Digital Conversion Accuracy and Response Uniformity of CCD on Small-Scale Laser Focal Spot Measurements

The two-dimensional snake scanning of the CCD method provides an effective solution to measure small-scale light spots which are smaller than one CCD pixel. The influences of the A/D conversion digits and response uniformity of the CCD on the measurement error are studied. When the A/D conversion digit is 20, the measurement error can be ignored. The maximum error value of the nonuniform response of the CCD pixel when the order of the super-Gaussian function is 10 is 0.7 μm. The research results can be used to guide the experiment.

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来源期刊

Laser and Particle Beams PHYSICS, APPLIED-

CiteScore

1.90

自引率

11.10%

发文量

审稿时长

1 months

期刊介绍： Laser and Particle Beams is an international journal which deals with basic physics issues of intense laser and particle beams, and the interaction of these beams with matter. Research on pulse power technology associated with beam generation is also of strong interest. Subjects covered include the physics of high energy densities; non-LTE phenomena; hot dense matter and related atomic, plasma and hydrodynamic physics and astrophysics; intense sources of coherent radiation; high current particle accelerators; beam-wave interaction; and pulsed power technology.