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Title: Development of Aspherical Active Gratings at NSRRC

Abstract

An active grating based on a novel optical concept with bendable polynomial surface profile to reduce the coma and defocus aberrations had been designed and proved by the prototype testing. Due to the low glass transition temperature of the glue and the difference of thermal expansion coefficient between the 17-4 steel bender and silicon, the prototype distorted from flat polished condition when thermally de-blocked the polishing pitch. To improve the thermal deformation of the active grating in the polishing process, a new invar bender and high curing temperature glue were adapted to glue a silicon substrate on the bender. After some tests and manufacturer polishing, it showed acceptable conditions. In this paper we will present the design and preliminary tests of the invar active grating. Meanwhile, the design and analysis of a new 17-4 PH steel bender to be electro-less nickel plating and mechanical ruling for a new beamline will also be discussed.

Authors:
; ; ; ; ; ; ; ;  [1];  [2]
  1. National Synchrotron Radiation Research Center, 101 Hsin-Ann Road, Hsinchu Science Park, Hsinchu 30076, Taiwan (China)
  2. National Taiwan University, No. 1, Sec. 4, Roosevelt Road, Taipei, Taiwan 106 (China)
Publication Date:
OSTI Identifier:
21052551
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 879; Journal Issue: 1; Conference: 9. international conference on synchrotron radiation instrumentation, Daegu (Korea, Republic of), 28 May - 2 Jun 2006; Other Information: DOI: 10.1063/1.2436096; (c) 2007 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; BEAM DYNAMICS; DEFORMATION; DESIGN; DIFFRACTION GRATINGS; GEOMETRICAL ABERRATIONS; GLASS; INVAR; NICKEL; SILICON; STEELS; SUBSTRATES; SURFACES; TESTING; THERMAL EXPANSION

Citation Formats

Tseng, T.-C., Wang, D.-J., Perng, S.-Y., Chen, C.-T., Lin, C.-J., Kuan, C.-K., Ho, H.-C., Wang, J., Fung, H.S., and Chang, S.-H. Development of Aspherical Active Gratings at NSRRC. United States: N. p., 2007. Web. doi:10.1063/1.2436096.
Tseng, T.-C., Wang, D.-J., Perng, S.-Y., Chen, C.-T., Lin, C.-J., Kuan, C.-K., Ho, H.-C., Wang, J., Fung, H.S., & Chang, S.-H. Development of Aspherical Active Gratings at NSRRC. United States. doi:10.1063/1.2436096.
Tseng, T.-C., Wang, D.-J., Perng, S.-Y., Chen, C.-T., Lin, C.-J., Kuan, C.-K., Ho, H.-C., Wang, J., Fung, H.S., and Chang, S.-H. Fri . "Development of Aspherical Active Gratings at NSRRC". United States. doi:10.1063/1.2436096.
@article{osti_21052551,
title = {Development of Aspherical Active Gratings at NSRRC},
author = {Tseng, T.-C. and Wang, D.-J. and Perng, S.-Y. and Chen, C.-T. and Lin, C.-J. and Kuan, C.-K. and Ho, H.-C. and Wang, J. and Fung, H.S. and Chang, S.-H.},
abstractNote = {An active grating based on a novel optical concept with bendable polynomial surface profile to reduce the coma and defocus aberrations had been designed and proved by the prototype testing. Due to the low glass transition temperature of the glue and the difference of thermal expansion coefficient between the 17-4 steel bender and silicon, the prototype distorted from flat polished condition when thermally de-blocked the polishing pitch. To improve the thermal deformation of the active grating in the polishing process, a new invar bender and high curing temperature glue were adapted to glue a silicon substrate on the bender. After some tests and manufacturer polishing, it showed acceptable conditions. In this paper we will present the design and preliminary tests of the invar active grating. Meanwhile, the design and analysis of a new 17-4 PH steel bender to be electro-less nickel plating and mechanical ruling for a new beamline will also be discussed.},
doi = {10.1063/1.2436096},
journal = {AIP Conference Proceedings},
number = 1,
volume = 879,
place = {United States},
year = {Fri Jan 19 00:00:00 EST 2007},
month = {Fri Jan 19 00:00:00 EST 2007}
}