Orbit compensation for the time varying elliptically polarized wiggler

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

DOI:https://doi.org/10.1063/1.1147457· OSTI ID:389527

Singh, O; Krinsky, S; Ivanov, P; Medvedko, E ^[1]

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1. APS, Argonne National Laboratory, Argonne, IL 60439 (United States)

In December 1994, an elliptically polarized wiggler was installed in the X13 straight section of the NSLS X-ray Ring. This device generates circularly polarized photons in the energy range of 0.1{endash}10 keV with AC modulation of polarization helicity. The vertical magnetic field is produced by a hybrid permanent magnet structure, and the horizontal magnetic field is generated by an electromagnet capable of operating with a switching frequency of up to 100 Hz. The elliptically polarized wiggler was commissioned during spring 1995 at an operating frequency of 2 Hz. Here, we discuss the compensation of the residual-orbit motion-utilizing trim coils at the wiggler ends and the high precision orbit measurement system of the X-Ray ring. {copyright} {ital 1996 American Institute of Physics.}

• OSTI ID: 389527
• 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

43 PARTICLE ACCELERATORS
44 INSTRUMENTATION
INCLUDING NUCLEAR AND PARTICLE DETECTORS
BNL
EV RANGE 10-100
KEV RANGE 01-10
MAGNETIC FIELDS
NSLS
ORBITS
POLARIZATION
POLARIZED BEAMS
WIGGLER MAGNETS
X-RAY SOURCES