Field precision machining technology of target chamber in ICF lasers

Yuanli Xu; Wenkai Wu; Sucun Shi; Lin Duan; Gang Chen; Baoxu Wang; Yugang Song; Huilin Liu; Mingzhi Zhu

doi:10.1117/12.2245738

24 October 2016 Field precision machining technology of target chamber in ICF lasers

Yuanli Xu, Wenkai Wu, Sucun Shi, Lin Duan, Gang Chen, Baoxu Wang, Yugang Song, Huilin Liu, Mingzhi Zhu

Proceedings Volume 9682, 8th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Large Mirrors and Telescopes; 96820G (2016) https://doi.org/10.1117/12.2245738
Event: Eighth International Symposium on Advanced Optical Manufacturing and Testing Technology (AOMATT2016), 2016, Suzhou, China

Abstract

In ICF lasers, many independent laser beams are required to be positioned on target with a very high degree of accuracy during a shot. The target chamber provides a precision platform and datum reference for final optics assembly and target collimation and location system. The target chamber consists of shell with welded flanges, reinforced concrete pedestal, and lateral support structure. The field precision machining technology of target chamber in ICF lasers have been developed based on ShenGuangIII (SGIII). The same center of the target chamber is adopted in the process of design, fabrication, and alignment. The technologies of beam collimation and datum reference transformation are developed for the fabrication, positioning and adjustment of target chamber. A supporting and rotating mechanism and a special drilling machine are developed to bore the holes of ports. An adjustment mechanism is designed to accurately position the target chamber. In order to ensure the collimation requirements of the beam leading and focusing and the target positioning, custom-machined spacers are used to accurately correct the alignment error of the ports. Finally, this paper describes the chamber center, orientation, and centering alignment error measurements of SGIII. The measurements show the field precision machining of SGIII target chamber meet its design requirement. These information can be used on similar systems.

Citation Download Citation

Yuanli Xu, Wenkai Wu, Sucun Shi, Lin Duan, Gang Chen, Baoxu Wang, Yugang Song, Huilin Liu, and Mingzhi Zhu "Field precision machining technology of target chamber in ICF lasers", Proc. SPIE 9682, 8th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Large Mirrors and Telescopes, 96820G (24 October 2016); https://doi.org/10.1117/12.2245738

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KEYWORDS

Optical spheres

Collimation

Laser applications

Optical alignment

3D acquisition

Laser development

3D modeling

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