TY - JOUR

T1 - A new small-angle X-ray scattering set-up on the crystallography beamline I711 at MAX-lab

A1 - Knaapila,M.

A1 - Svensson,C.

A1 - Barauskas,J.

A1 - Zackrisson,M.

A1 - Nielsen,Søren S.

A1 - Toft,K

A1 - Vestergaard,B.

A1 - Arleth,L.

A1 - Olsson,U.

A1 - Pedersen,J. S.

A1 - Cerenius,Y.

AU - Knaapila,M.

AU - Svensson,C.

AU - Barauskas,J.

AU - Zackrisson,M.

AU - Nielsen,Søren S.

AU - Toft,K

AU - Vestergaard,B.

AU - Arleth,L.

AU - Olsson,U.

AU - Pedersen,J. S.

AU - Cerenius,Y.

PB - Wiley-Blackwell Munksgaard

PY - 2009

Y1 - 2009

N2 - A small-angle X-ray scattering (SAXS) set-up has recently been developed at beamline I711 at the MAX II storage ring in Lund (Sweden). An overview of the required modifications is presented here together with a number of application examples. The accessible q range in a SAXS experiment is 0.009-0.3 angstrom(-1) for the standard set-up but depends on the sample-to-detector distance, detector offset, beamstop size and wavelength. The SAXS camera has been designed to have a low background and has three collinear slit sets for collimating the incident beam. The standard beam size is about 0.37 mm X 0.37 mm (full width at half-maximum) at the sample position, with a flux of 4 X 10 10 photons s(-1) and lambda = 1.1 angstrom. The vacuum is of the order of 0.05 mbar in the unbroken beam path from the first slits until the exit window in front of the detector. A large sample chamber with a number of lead-throughs allows different sample environments to be mounted. This station is used for measurements on weakly scattering proteins in solutions and also for colloids, polymers and other nanoscale structures. A special application supported by the beamline is the effort to establish a micro-fluidic sample environment for structural analysis of samples that are only available in limited quantities. Overall, this work demonstrates how a cost-effective SAXS station can be constructed on a multipurpose beamline.

AB - A small-angle X-ray scattering (SAXS) set-up has recently been developed at beamline I711 at the MAX II storage ring in Lund (Sweden). An overview of the required modifications is presented here together with a number of application examples. The accessible q range in a SAXS experiment is 0.009-0.3 angstrom(-1) for the standard set-up but depends on the sample-to-detector distance, detector offset, beamstop size and wavelength. The SAXS camera has been designed to have a low background and has three collinear slit sets for collimating the incident beam. The standard beam size is about 0.37 mm X 0.37 mm (full width at half-maximum) at the sample position, with a flux of 4 X 10 10 photons s(-1) and lambda = 1.1 angstrom. The vacuum is of the order of 0.05 mbar in the unbroken beam path from the first slits until the exit window in front of the detector. A large sample chamber with a number of lead-throughs allows different sample environments to be mounted. This station is used for measurements on weakly scattering proteins in solutions and also for colloids, polymers and other nanoscale structures. A special application supported by the beamline is the effort to establish a micro-fluidic sample environment for structural analysis of samples that are only available in limited quantities. Overall, this work demonstrates how a cost-effective SAXS station can be constructed on a multipurpose beamline.

KW - small-angle X-ray scattering

KW - colloids

KW - I711

KW - solution scattering

KW - polymers

KW - proteins

KW - SAXS

U2 - 10.1107/S0909049509018986

DO - 10.1107/S0909049509018986

JO - Journal of Synchrotron Radiation

JF - Journal of Synchrotron Radiation

SN - 0909-0495

VL - 16

SP - 498

EP - 504

ER -