BL-6A: Small-angle X-ray scattering
BL-6A is designed for small angle X-ray scattering. A vertical focusing mirror is installed at the beamline in order to obtain a beam with high photon flux while eliminating higher energy X-rays in the beam. The mirror chamber located at 10.0 m is maintained in a high vacuum so as to keep the mirror surface clean. The ULE plane mirror has a 1.1-m-long reflecting surface. A synchrotron radiation beam is focused by the mirror at a glancing angle of 3.0 mrad. A curved monochromator for a horizontal focusing is installed at 12.2 m in the vacuum monochromator chamber. Triangular germanium (111) crystal with the asymmetric angle of 8.0 degree is used as the monochromator crystal for an optimum focusing of the beam. Three cross slit system are aligned on the beamline so as to confine parasitic scattering inside the beam stop. The sample-to-detector distance can be changed between 0.25 and 2.5 m. The small angle X-ray scattering resolution reaches ~100 nanometer at the distance of 2.5 m.

Experimental Hutch
Area of Research
Light Source
Bending Magnet
Vertical Focusing Mirror 10.0m Rhodium coated ULE substrate (Flat bent, 1100 mm (L) x 80 mm (W) x 40 mm (T) ) with 3.0 mrad glancing angle.
Mono-chromator 12.2m Trianle Ge(111) crystal with the asymmetric angle of 8.0 degree
Focal point 16.8m On the SAXS detector surface
Detecotr System
SAXS detector :
  • Dectris PILATUS3 1M
  • WAXS detector :
  • Dectris PILATUS 100K
  • Other Devices
    Pulse Generator, Chiller for sample temperature, Incubator(3 - 45degree), Microcentrifuge(1,5&0.5ml, -20 - 40degree), PipetmanNEO(2, 20, 200, 1000uL), General GISAXS stage, Rotary Sample Changer.
    Beam Performance
    Energy range : 8.3 keV
    Energy resolution : 3 x 10-3
    Photon Flux: 1.0x1012 phs/s
    Beam Size: 0.498(H) x 0.245(V) mm
    Divergence (Calc): 0.963(H) x 0.046(V) mrad
    H. Takagi, N. Igarashi, T. Mori, S. Saijo, H. Ohta, Y. Nagatani, T. Kosuge and N. Shimizu., AIP Conf. Proc. 1741, 030018 (2016).
    doi: 10.1063/1.4952841

    N. Shimizu, T. Mori, N. Igarashi, H. Ohta, Y. Nagatani, T. Kosuge and K. Ito., J. Phys.: Conf. Ser. 425, 202008 (2013).
    doi: 10.1088/1742-6596/425/20/202008
    Contact Person
    Noriyuki IGARASHI (BL-6A)
    Phone : +81-298-64-5641
    Fax : +81-298-64-2801
    e-mail :

    Nobutaka SHIMIZU (SAXS beamlines)
    Phone : +81-298-64-5595
    Fax : +81-298-64-2801
    e-mail :
    Other details information
    SAXS beamlines at PF (Japanese)
    Current Status of PF SAXS beamlines

    Last modified: 2019-1-24