Article

Performance upgrade in the JAEA actinide science beamline BL23SU at SPring-8 with a new twin-helical undulator.

Quantum Beam Science Directorate, Japan Atomic Energy Agency, 1-1-1 Kouto, Sayo, Hyogo 679-5148, Japan.
Journal of Synchrotron Radiation (impact factor: 2.73). 05/2012; 19(Pt 3):388-93. DOI:10.1107/S0909049512006772 pp.388-93
Source: PubMed

ABSTRACT The soft X-ray beamline BL23SU at SPring-8 has undergone an upgrade with a twin-helical undulator of in-vacuum type to enhance the experimental capabilities of the endstations. The new light source with a fast helicity-switching operation allows not only the data throughput but also the sensitivity in X-ray magnetic circular dichroism (XMCD) to be improved. The operational performance and potential are described by presenting XMCD results of paramagnetic β-US(2) measured with a 10 T superconducting magnet.

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Keywords

10 T superconducting magnet
 
experimental capabilities
 
fast helicity-switching operation
 
new light source
 
operational performance
 
paramagnetic β-US(2)
 
X-ray magnetic circular dichroism
 
XMCD
 
XMCD results
 

Yuji Saitoh