Spatially resolved diffraction using a Seller Collimator-Imaging plate assembly

Authors
Wong, J Waide, PA Elmer, JW Thompson, AC
Citation
J. Wong et al., Spatially resolved diffraction using a Seller Collimator-Imaging plate assembly, NUCL INST A, 446(3), 2000, pp. 581-591
Citations number
19
Categorie Soggetti
Spectroscopy /Instrumentation/Analytical Sciences","Instrumentation & Measurement
Journal title
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
ISSN journal
01689002 → ACNP
Volume
446
Issue
3
Year of publication
2000
Pages
581 - 591
Database
ISI
SICI code
0168-9002(20000521)446:3<581:SRDUAS>2.0.ZU;2-G
Abstract
A series of multiple foil collimators have been constructed to perform spat ially resolved diffraction using a synchrotron radiation X-ray source and a two-dimensional X-ray detector. Slit gap sizes of 0.75, 0.25 and 0.125 mm were evaluated. A thin vanadium foil (BCC) on bulk titanium (HCP) was studi ed as a test system. This system simulates an alpha-Ti (HCP) -> beta-Ti (BC C) transformation in the heat affected zone of Ti fusion welds. Diffraction lines from both V(2 0 0) and Ti(1 0 2) were measured in the gap aligned wi th the V/Ti boundary. With improvements in the mounting of the slits, a spa tial resolution of at least 0.12 mm will be possible. (C) 2000 Elsevier Sci ence B.V. All rights reserved.