title: Performance of the micro-PIC gaseous area detector in small-angle X-ray scattering experiments.
abstract: The application of a two-dimensional photon-counting detector based on a micro-pixel gas chamber (micro-PIC) to high-resolution small-angle X-ray scattering (SAXS), and its performance, are reported. The micro-PIC is a micro-pattern gaseous detector fabricated by printed circuit board technology. This article describes the performance of the micro-PIC in SAXS experiments at SPring-8. A dynamic range of >10(5) was obtained for X-ray scattering from a polystyrene sphere solution. A maximum counting rate of up to 5 MHz was observed with good linearity and without saturation. For a diffraction pattern of collagen, weak peaks were observed in the high-angle region in one accumulation of photons.
authors.affiliation: Department of Physics, Kyoto University, Kyoto 606-8502, Japan. hattori@cr.scphys.kyoto-u.ac.jp
authors.forename: Kaori
authors.initials: K
authors.lastname: Hattori
authors.forename: Ken'ichi
authors.initials: K
authors.lastname: Tsuchiya
authors.forename: Kazuki
authors.initials: K
authors.lastname: Ito
authors.forename: Yoko
authors.initials: Y
authors.lastname: Okada
authors.forename: Kotaro
authors.initials: K
authors.lastname: Fujii
authors.forename: Hidetoshi
authors.initials: H
authors.lastname: Kubo
authors.forename: Kentaro
authors.initials: K
authors.lastname: Miuchi
authors.forename: Masaki
authors.initials: M
authors.lastname: Takata
authors.forename: Toru
authors.initials: T
authors.lastname: Tanimori
authors.forename: Hidehiro
authors.initials: H
authors.lastname: Uekusa
mesh_terms: D004867:Equipment Design; D019544:Equipment Failure Analysis; D017022:Flow Injection Analysis / Q000295:instrumentation*; D005740:Gases / Q000032:analysis*; D008904:Miniaturization; D015203:Reproducibility of Results; D053838:Scattering, Small Angle; D012680:Sensitivity and Specificity; D012815:Signal Processing, Computer-Assisted / Q000295:instrumentation*; D014159:Transducers; D014961:X-Ray Diffraction / Q000295:instrumentation*
chemical_list: D005740:Gases