Control of surface quality of sub-millimeter cylindrical gold targets

zhang yunwang; sun jingyuan; chen jing; du kai; wan xiaobo; xiao jiang; zhang wei; zhang lin

Volume 22 Issue 11

Sep. 2010

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Article Navigation > High Power Laser and Particle Beams > 2010 > 22(11): 0-

ding shi-chuan, liu gong-fa, xuan ke, et al. MATLAB based beam orbit correction system of HLS storage ring[J]. High Power Laser and Particle Beams, 2006, 18.

Citation:

zhang yunwang, sun jingyuan, chen jing, et al. Control of surface quality of sub-millimeter cylindrical gold targets[J]. High Power Laser and Particle Beams, 2010, 22.

ding shi-chuan, liu gong-fa, xuan ke, et al. MATLAB based beam orbit correction system of HLS storage ring[J]. High Power Laser and Particle Beams, 2006, 18.

Citation:

zhang yunwang, sun jingyuan, chen jing, et al. Control of surface quality of sub-millimeter cylindrical gold targets[J]. High Power Laser and Particle Beams, 2010, 22.

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Control of surface quality of sub-millimeter cylindrical gold targets

1.
Research Center of Laser Fusion,CAEP,P.O.Box 919-987,Mianyang 621900,China;
2.
School of Material Science and Engineering,Southwest University of Science and Technology,Mianyang 621010,China;
3.
School of Microelectronics and Solid-State Electronics,University of Electronic Science and Technology of China,Chengdu 610054,China

Publish Date: 2010-09-29

Abstract

Abstract

The morphology, composition and causes of defects are analyzed to reduce defects on the gold layer prepared by electrochemical deposition from sulfite solution, and to improve the surface quality of sub-millimeter cylindrical gold targets, by means of SEM and EDS. The effects of current density, metallic impurity, organic pollution, pre-deposition parameters and mandrel quality on the quality of the gold plating are discussed, along with their mechanisms. The result indicates that the current density must be controlled strictly. The optimal current density ranges from 2.4 to 3.2 mA/cm2 when the concentration of gold ranges from 13 to 22 g/L, and from 2.0 to 2.6 mA/cm2 when the concentration of gold ranges from 5 to 13 g/L. The parameters of predeposition must be optim
- cylindrical gold target,
- surface quality,
- defect,
- sulfite

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