Design of a polarised light beamline in the energy range of 30-4000 eV

Chaudhari, S. M. ; Banerjee, A. ; Phase, D. M. ; Dasannacharya, B. A. (2003) Design of a polarised light beamline in the energy range of 30-4000 eV Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, 199 . pp. 520-525. ISSN 0168-583X

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This article describes the design of a possible polarised light beamline for magnetic circular dichroism and photoemission experiments on a bending magnet source of 2.5 GeV storage ring, Indus-2. It will have an energy range of 30-4000 eV and will deliver circular as well as linearly polarised light to perform absorption and photoemission experiments covering relevant L and M edges of most of the elements. The beamline optics consists of a vertically moveable aperture for polarisation selection. It has three spherical gratings and a double crystal monochromator necessary for energy selection in low and high-energy ranges respectively. Corresponding pre- and post-mirror optics, which is common for both the monochromators is the highlight of this design. Detailed ray-tracing calculations, which were carried out to evaluate and optimise the performance of the proposed beamline, are presented in this article.

Item Type:Article
Source:Copyright of this article belongs to Elsevier Science.
Keywords:Grazing Incidence Optics; Spherical Grating Monochromator; Polarised Light; Double Crystal Monochromator
ID Code:10175
Deposited On:03 Nov 2010 04:16
Last Modified:28 May 2011 05:29

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