ULTRA-SMALL-ANGLE X-RAY-SCATTERING TO BRIDGE THE GAP BETWEEN VISIBLE-LIGHT SCATTERING AND STANDARD SMALL-ANGLE SCATTERING CAMERAS

Citation
Aj. Allen et al., ULTRA-SMALL-ANGLE X-RAY-SCATTERING TO BRIDGE THE GAP BETWEEN VISIBLE-LIGHT SCATTERING AND STANDARD SMALL-ANGLE SCATTERING CAMERAS, Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment, 347(1-3), 1994, pp. 487-490
Citations number
11
Categorie Soggetti
Nuclear Sciences & Tecnology","Physics, Particles & Fields","Instument & Instrumentation",Spectroscopy
ISSN journal
01689002
Volume
347
Issue
1-3
Year of publication
1994
Pages
487 - 490
Database
ISI
SICI code
0168-9002(1994)347:1-3<487:UXTBTG>2.0.ZU;2-Q
Abstract
This paper reports the performance of an ultra-small-angle X-ray scatt ering facility on beamline X23A3 at the National Synchrotron Light Sou rce. Based on a Bonse-Hart double-crystal design, the instrument combi nes: continuously tunable optics with asymmetric first monochromator c rystal, high-flux throughput, high-precision crystal rotators, indepen dently-mounted reflecting crystals, photodiode detector and high-resol ution X-ray video camera. This combination of features permits rapid s mall-angle X-ray scattering measurements in the scattering wave-vector range of 0.005-2.0 nm-1 (depending on the sample), with mum-positioni ng accuracy of a typical 3 x 3 mm2 beam on the sample.