skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Characterization of Beryllium Windows for Coherent X-ray Optics

Abstract

Beryllium foils fabricated by several processes were characterized using spatially coherent x rays at 1-km beamline of SPring-8. By thickness dependence of bright x-ray spot density due to Fresnel diffraction from several-micron deficiencies, we found that speckles (bright x-ray spots) were due to voids with densities 103-104 mm-3 in powder foils and ingot foils. Compared with powder and ingot foils, a polished physical-vapor-deposited (PVD) beryllium foil gave highly uniform beams with no speckles. The PVD process eliminates the internal voids in principle and the PVD foil is the best for coherent x-ray applications.

Authors:
;  [1];  [2];  [1];  [3]
  1. SPring-8/JASRI, 1-1-1 Kouto, Sayo 679-5198 (Japan)
  2. SPring-8/RIKEN, 1-1-1 Kouto, Sayo 679-5148 (Japan)
  3. (Japan)
Publication Date:
OSTI Identifier:
21049201
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: 10.1063/1.2436245; (c) 2007 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; BERYLLIUM; COHERENT RADIATION; DENSITY; DIFFRACTION; FOILS; OPTICS; PHYSICAL VAPOR DEPOSITION; POWDERS; SPRING-8 STORAGE RING; THICKNESS; VAPOR DEPOSITED COATINGS; WINDOWS; X RADIATION

Citation Formats

Goto, Shunji, Yabashi, Makina, Tamasaku, Kenji, Ishikawa, Tetsuya, and SPring-8/RIKEN, 1-1-1 Kouto, Sayo 679-5148. Characterization of Beryllium Windows for Coherent X-ray Optics. United States: N. p., 2007. Web. doi:10.1063/1.2436245.
Goto, Shunji, Yabashi, Makina, Tamasaku, Kenji, Ishikawa, Tetsuya, & SPring-8/RIKEN, 1-1-1 Kouto, Sayo 679-5148. Characterization of Beryllium Windows for Coherent X-ray Optics. United States. doi:10.1063/1.2436245.
Goto, Shunji, Yabashi, Makina, Tamasaku, Kenji, Ishikawa, Tetsuya, and SPring-8/RIKEN, 1-1-1 Kouto, Sayo 679-5148. Fri . "Characterization of Beryllium Windows for Coherent X-ray Optics". United States. doi:10.1063/1.2436245.
@article{osti_21049201,
title = {Characterization of Beryllium Windows for Coherent X-ray Optics},
author = {Goto, Shunji and Yabashi, Makina and Tamasaku, Kenji and Ishikawa, Tetsuya and SPring-8/RIKEN, 1-1-1 Kouto, Sayo 679-5148},
abstractNote = {Beryllium foils fabricated by several processes were characterized using spatially coherent x rays at 1-km beamline of SPring-8. By thickness dependence of bright x-ray spot density due to Fresnel diffraction from several-micron deficiencies, we found that speckles (bright x-ray spots) were due to voids with densities 103-104 mm-3 in powder foils and ingot foils. Compared with powder and ingot foils, a polished physical-vapor-deposited (PVD) beryllium foil gave highly uniform beams with no speckles. The PVD process eliminates the internal voids in principle and the PVD foil is the best for coherent x-ray applications.},
doi = {10.1063/1.2436245},
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}
}