论文信息 - Upgrade of beamline BL25SU for soft x-ray imaging and spectroscopy of solid using nano- and micro-focused beams at SPring-8

Upgrade of beamline BL25SU for soft x-ray imaging and spectroscopy of solid using nano- and micro-focused beams at SPring-8

Substantial upgrades have been made to the beamline BL25SU at SPring-8 for soft X-ray imaging and spectroscopy of solid-state materials. The upgraded beamline consists of two branches: a micro-beam branch with high energy resolution, and a nano-beam branch with small angular divergence. The beamline has been available for use since October 2014, following a half year commissioning period. We present here the beamline performance parameters, including resolving power, photon flux, and focused beam size, which are consistent with designed specifications.

[1] H. Kimura,et al. Performance of a very high resolution soft x-ray beamline BL25SU with a twin-helical undulator at SPring-8 , 2000 .

[2] James H. Underwood,et al. Varied‐space grazing incidence gratings in high resolution scanning spectrometers , 2008 .

[3] T. Hirono,et al. Development of a soft X-ray magnetic circular dichroism spectrometer using a 1.9 T electromagnet at BL25SU of SPring-8 , 2005 .

[4] K. Prince,et al. A critical comparison of selected 1s and 2p core hole widths , 1999 .

[5] T. Hara,et al. SPring-8 twin helical undulator. , 1998, Journal of synchrotron radiation.

[6] T. Hirono,et al. Soft X-ray Magnetic Circular Dichroism of a CoFe/MnIr Exchange Bias Film under Pulsed High Magnetic Field , 2011 .