title: X-ray photon correlation spectroscopy using a fast pixel array detector with a grid mask resolution enhancer.
abstract: The performance of a fast pixel array detector with a grid mask resolution enhancer has been demonstrated for X-ray photon correlation spectroscopy (XPCS) measurements to investigate fast dynamics on a microscopic scale. A detecting system, in which each pixel of a single-photon-counting pixel array detector, PILATUS, is covered by grid mask apertures, was constructed for XPCS measurements of silica nanoparticles in polymer melts. The experimental results are confirmed to be consistent by comparison with other independent experiments. By applying this method, XPCS measurements can be carried out by customizing the hole size of the grid mask to suit the experimental conditions, such as beam size, detector size and sample-to-detector distance.
authors.affiliation: ERATO, Takahara Soft Interfaces Project, Japan Science and Technology Agency, Kyushu University, Nishi-ku, Fukuoka, Japan. t-hoshino@cstf.kyushu-u.ac.jp
authors.forename: Taiki
authors.initials: T
authors.lastname: Hoshino
authors.forename: Moriya
authors.initials: M
authors.lastname: Kikuchi
authors.forename: Daiki
authors.initials: D
authors.lastname: Murakami
authors.forename: Yoshiko
authors.initials: Y
authors.lastname: Harada
authors.forename: Koji
authors.initials: K
authors.lastname: Mitamura
authors.forename: Kiminori
authors.initials: K
authors.lastname: Ito
authors.forename: Yoshihito
authors.initials: Y
authors.lastname: Tanaka
authors.forename: Sono
authors.initials: S
authors.lastname: Sasaki
authors.forename: Masaki
authors.initials: M
authors.lastname: Takata
authors.forename: Hiroshi
authors.initials: H
authors.lastname: Jinnai
authors.forename: Atsushi
authors.initials: A
authors.lastname: Takahara