Research on target alignment fiducials of high power laser facility

Weiheng Lin; Jianqiang Zhu; Lei Ren; Yang Zhou

doi:10.1117/12.2597805

6 June 2021 Research on target alignment fiducials of high power laser facility

Weiheng Lin, Jianqiang Zhu, Lei Ren, Yang Zhou

Author Affiliations +

Proceedings Volume 11849, Fourth International Symposium on High Power Laser Science and Engineering (HPLSE 2021); 1184902 (2021) https://doi.org/10.1117/12.2597805
Event: Fourth International Symposium on High Power Laser Science and Engineering (HPLSE 2021), 2021, Suzhou, China

Abstract

Target alignment technology is one of the most critical technologies in high-energy physics experiments, and is an important technology related to the success of the laser fusion experiment. This paper describes the error in the basic target alignment scheme, and designs a series of alignment fiducials around the target to achieve the improvement in target alignment precision. This paper analyzes the influence of fiducials-group’s forms on the target alignment error. According to their respective properties, under the constraints of the experimental conditions, and combined with the linear and nonlinear fiducials-group’s design, improvement of target alignment precision and error transfer are achieved. Under the experimental requirements of the SG-II-U facility, combined with the working conditions, a surrogate target with alignment fiducials-group is designed, and through the interaction of the fiducials-group and the alignment mark in viewers, the error of target recognition can be greatly optimized and the uncertainty of target alignment can be reduced.

Citation Download Citation

Weiheng Lin, Jianqiang Zhu, Lei Ren, and Yang Zhou "Research on target alignment fiducials of high power laser facility", Proc. SPIE 11849, Fourth International Symposium on High Power Laser Science and Engineering (HPLSE 2021), 1184902 (6 June 2021); https://doi.org/10.1117/12.2597805

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