Constant deviation monochromator for the range 100 A/le//lambda//le/1000 A

Journal Article · Sat Jul 01 04:00:00 EDT 1989 · Rev. Sci. Instrum.; (United States)

DOI:https://doi.org/10.1063/1.1140837· OSTI ID:6041511

Ishiguro, E; Suzui, M; Yamazaki, J; Nakamura, E; Sakai, K; Matsudo, O; Mizutani, N; Fukui, K; Watanabe, M

A grazing incidence constant deviation monochromator with a spherical concave grating was fabricated for use with undulator radiation. It has a simple scanning mechanism with fixed entrance and exit slits, as well as fixed directions of incident and exit beams. It has been installed into an undulator beamline at IMS. Synchrotron radiation from a bending section also can be introduced into the monochromator by using premirrors. The energy resolution of the monochromator is better than 70 meV at the photon energy of 94 eV with 10-/mu/m slits, when the bending magnet synchrotron radiation is used. The spot size of the zeroth-order light is 1.5(v)/times/2.0(h) mm/sup 2/ at the distance of 1.85 m behind a postmirror. The photon flux of the undulator radiation behind the exit slit is approximately 1/times/10/sup 12/ photons/s at the peak, when both the entrance and exit slits are 100 /mu/m (/Delta//ital E/=0.08 eV) and the stored current is 50 mA.

• Research Organization: Department of Applied Physics, Osaka City University, Sugimoto, Sumiyoshi-ku, Osaka 558, Japan (JP); Institute for Molecular Science, Myodaiji, Okazaki 444, Japan
• OSTI ID: 6041511
• Journal Information: Rev. Sci. Instrum.; (United States), Journal Name: Rev. Sci. Instrum.; (United States) Vol. 60:7; ISSN RSINA
• Country of Publication: United States
• Language: English

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