Open AccessBeamline B21: high‐throughput small‐angle X‐ray scattering at Diamond Light Source
Author(s) -
Cowieson Nathan P.,
Edwards-Gayle Charlotte J. C.,
Inoue Katsuaki,
Khunti Nikul S.,
Doutch James,
Williams Eugene,
Daniels Steven,
Preece Geoff,
Krumpa Nicholas A.,
Sutter John P.,
Tully Mark D.,
Terrill Nick J.,
Rambo Robert P.
Publication year - 2020
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/s1600577520009960
Subject(s) - beamline , optics , monochromator , synchrotron , storage ring , diamond , scattering , small angle scattering , detector , small angle x ray scattering , materials science , range (aeronautics) , photon , physics , beam (structure) , wavelength , composite material
B21 is a small‐angle X‐ray scattering (SAXS) beamline with a bending magnet source in the 3 GeV storage ring at the Diamond Light Source Ltd synchrotron in the UK. The beamline utilizes a double multi‐layer monochromator and a toroidal focusing optic to deliver 2 × 10 12 photons per second to a 34 × 40 µm (FWHM) focal spot at the in‐vacuum Eiger 4M (Dectris) detector. A high‐performance liquid chromatography system and a liquid‐handling robot make it possible to load solution samples into a temperature‐controlled in‐vacuum sample cell with a high level of automation. Alternatively, a range of viscous or solid materials may be loaded manually using a range of custom sample cells. A default scattering vector range from 0.0026 to 0.34 Å −1 and low instrument background make B21 convenient for measuring a wide range of biological macromolecules. The beamline has run a full user programme since 2013.