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Proceedings Paper

Field precision machining technology of target chamber in ICF lasers
Author(s): Yuanli Xu; Wenkai Wu; Sucun Shi; Lin Duan; Gang Chen; Baoxu Wang; Yugang Song; Huilin Liu; Mingzhi Zhu
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Paper 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.

Paper Details

Date Published: 24 October 2016
PDF: 6 pages
Proc. SPIE 9682, 8th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Large Mirrors and Telescopes, 96820G (24 October 2016); doi: 10.1117/12.2245738
Show Author Affiliations
Yuanli Xu, Institute of Systems Engineering (China)
Wenkai Wu, Institute of Systems Engineering (China)
Sucun Shi, China Erzhong Group Co., Ltd. (China)
Lin Duan, China Erzhong Group Co., Ltd. (China)
Gang Chen, Institute of Systems Engineering (China)
Baoxu Wang, Institute of Systems Engineering (China)
Yugang Song, China Erzhong Group Co., Ltd. (China)
Huilin Liu, China Erzhong Group Co., Ltd. (China)
Mingzhi Zhu, Institute of Systems Engineering (China)


Published in SPIE Proceedings Vol. 9682:
8th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Large Mirrors and Telescopes
Myung K. Cho; Bin Fan, Editor(s)

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