Twin helical undulator beamline for soft X‐ray spectroscopy at SPring‐8 | Zendy

Saitoh Y. | Zendy; Nakatani T. | Zendy; Matsushita T. | Zendy; Miyahara T. | Zendy; Fujisawa M. | Zendy; Soda K. | Zendy; Muro T. | Zendy; Ueda S. | Zendy; Harada H. | Zendy; Sekiyama A. | Zendy; Imada S. | Zendy; Daimon H. | Zendy; Suga S. | Zendy

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Twin helical undulator beamline for soft X‐ray spectroscopy at SPring‐8

Author(s) -

Saitoh Y.,

Nakatani T.,

Matsushita T.,

Miyahara T.,

Fujisawa M.,

Soda K.,

Muro T.,

Ueda S.,

Harada H.,

Sekiyama A.,

Imada S.,

Daimon H.,

Suga S.

Publication year - 1998

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/s090904959701902x

Subject(s) - spring 8 , undulator , beamline , monochromator , physics , van de graaff generator , optics , synchrotron radiation , radiation , line (geometry) , spectroscopy , beam (structure) , geometry , mathematics , quantum mechanics , wavelength

A very high resolution soft X‐ray beamline, BL25SU, has been designed and is under construction at SPring‐8. Completely right or left circularly polarized light is supplied on a common axis of a newly designed twin helical undulator. A helicity modulation up to 10 Hz can be performed using five kicker magnets. The fundamental radiation covers the region 0.5–3 keV. Higher‐order radiation is rather weak on the axis. A monochromator with varied‐line‐spacing plane gratings is installed to cover the region below 1.5 keV. A very high resolution beyond 10 4 is expected for the whole energy region.

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