An elliptical wiggler beamline for the ALS

Journal Article · Sun Sep 01 04:00:00 EDT 1996 · Review of Scientific Instruments

DOI:https://doi.org/10.1063/1.1146929· OSTI ID:389614

Martynov, V V; McKinney, W R; Padmore, H ^[1]

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1. Accelerator and Fusion Research Division, Lawrence Berkeley Laboratory, Berkeley CA 94720 Institute of Microelectronics Technology, 142432 Chernogolovka (Russia)

A beamline for circularly polarized radiation produced by an elliptical wiggler has been designed at the ALS covering the broad energy range from 50 eV to 2000 eV. The rigorous theory of grating diffraction efficiency has been used to maximize transmitted flux. The nature of the elliptical wiggler insertion device creates a challenging optical problem due to the large source size in the vertical and horizontal directions. The requirement of high resolving power combined with the broad tuning range and high heat loads complicate the design. These problems have been solved by using cooled optics and a variable-included angle monochromator of the {open_quote}{open_quote}constant length{close_quote}{close_quote} type with high demagnification onto its entrance slit. {copyright} {ital 1996 American Institute of Physics.}

• Research Organization: Lawrence Berkeley National Laboratory
• DOE Contract Number: AC03-76SF00098
• OSTI ID: 389614
• Report Number(s): CONF-9510119--
• Journal Information: Review of Scientific Instruments, Journal Name: Review of Scientific Instruments Journal Issue: 9 Vol. 67; ISSN 0034-6748; ISSN RSINAK
• Country of Publication: United States
• Language: English

Related Subjects

44 INSTRUMENTATION
INCLUDING NUCLEAR AND PARTICLE DETECTORS
ADVANCED LIGHT SOURCE
BEAM TRANSPORT
DESIGN
EV RANGE 10-100
EV RANGE 100-1000
HEATING LOAD
KEV RANGE 01-10
MONOCHROMATORS
OPTICAL SYSTEMS
PHOTON BEAMS
POLARIZATION
SYNCHROTRON RADIATION
WIGGLER MAGNETS
X RADIATION