Monochromator for materials science beamline at Elettra

Radovan Vasina; Vladimir Kolarik

doi:10.1117/12.279365

3 November 1997 Monochromator for materials science beamline at Elettra

Radovan Vasina, Vladimir Kolarik

Proceedings Volume 3150, Gratings and Grating Monochromators for Synchrotron Radiation; (1997) https://doi.org/10.1117/12.279365
Event: Optical Science, Engineering and Instrumentation '97, 1997, San Diego, CA, United States

Abstract

The materials science beamline (MSB) is to be attached to a bending magnet ofthe Elettra storage ring. The tuning range of the materials science beamline is from 20 to 1000 eV with the spectral resolving power c/Ar better than 4000 in the whole tuning range. Optics of MSB consists of the polarization aperture, toroidal prefocusing mirror, entrance slit, plane premirror, single plane grating, spherical mirror, exit slit and toroidal refocusing mirror. The plane grating is operated in the fixed focus mode with C11 2.25. The choice ofdistance entrance slit - plane grating and Callowed to suppress entirely the coma aberration of the spherical focusing mirror. The scanning of the light wavelength is done by rotation of the plane grating and by simultaneous translation and rotation ofthe plane prernirror. Translation and rotational movements ofthe plane premirror are mechanically coupled by means ofa cain. The expected beam spot at the sample has a size ofO.06x0.O1 mm2 (cx) approximately. The expected photon flux at the sample is 3x10'° photons/(s 0. 1%BW) at 1000 eV and I x1012photons/(s 0. l%BW) at 20 eV.

Citation Download Citation

Radovan Vasina and Vladimir Kolarik "Monochromator for materials science beamline at Elettra", Proc. SPIE 3150, Gratings and Grating Monochromators for Synchrotron Radiation, (3 November 1997); https://doi.org/10.1117/12.279365

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