Open AccessTime‐Resolved Simultaneous SAXS/WAXS of the Drawing of Polyethylene at the Daresbury SRS
Author(s) -
Hughes D. J.,
Mahendrasingam A.,
Heeley E. L.,
Oatway W. B.,
Martin C.,
TownsAndrews E.,
Fuller W.
Publication year - 1996
Publication title -
journal of synchrotron radiation
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.172
H-Index - 99
ISSN - 1600-5775
DOI - 10.1107/s0909049596000192
Subject(s) - small angle x ray scattering , materials science , detector , scattering , polyethylene , optics , range (aeronautics) , composite material , physics
A system has been developed which represents a significant advance in the quality and extent of small‐ and wide‐angle X‐ray scattering data (SAXS and WAXS) that can be recorded simultaneously with strain data during the drawing and annealing of polymer materials. WAXS data are recorded using a Photonic Science charge‐coupled‐device area detector and SAXS data using a gas‐filled multiwire area detector. Strain data, for the region of the specimen from which the SAXS/WAXS data are collected, are calculated from an accurately synchronized continuously recorded video image of the specimen. The system allows X‐ray and video image data to be collected as a series of frames with essentially no `dead‐time' between frames. The data are fully two‐dimensional and can be collected for a wide range of d spacings. The use of this system to investigate the stress‐induced orientation and phase changes during the drawing of a range of grades of commercially available polyethylene is described.