High-flux normal incidence monochromator for circularly polarized synchrotron radiation

Journal Article · Sun Jun 01 04:00:00 EDT 1986 · Rev. Sci. Instrum.; (United States)

DOI:https://doi.org/10.1063/1.1138655· OSTI ID:5934709

Schaefers, F; Peatman, W; Eyers, A; Heckenkamp, C; Schoenhense, G; Heinzmann, U

A 6.5-m normal incidence monochromator installed at the storage ring BESSY, which is optimized for a high throughput of circularly polarized off-plane radiation at moderate resolution is described. The monochromator employs two exit slits and is specially designed and used for low-signal experiments such as spin- and angle-resolved photoelectron spectroscopy on solids, adsorbates, free atoms, and molecules. The Monk--Gillieson mounting (plane grating in a convergent light beam) allows for large apertures with relatively little astigmatism. With two gratings, a flux of more than 10/sup 11/ photons s/sup -1/ bandwidth/sup -1/ (0.2--0.5 nm) with a circular polarization of more than 90% in the wavelength range from 35 to 675 nm is achieved.

• Research Organization: Berliner Elektronenspeicherring Gesellschaft fuer Synchrotronstrahlung mbH, Lentzeallee 100, D-1000 Berlin 33, West Germany
• OSTI ID: 5934709
• Journal Information: Rev. Sci. Instrum.; (United States), Journal Name: Rev. Sci. Instrum.; (United States) Vol. 57:6; ISSN RSINA
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
430400* -- Particle Accelerators-- Storage Rings
BESSY STORAGE RING
BREMSSTRAHLUNG
DESIGN
ELECTROMAGNETIC RADIATION
MONOCHROMATORS
OPERATION
PERFORMANCE
POLARIZATION
RADIATIONS
STORAGE RINGS
SYNCHROTRON RADIATION