A normal-incidence beam line at the MAX storage ring
Sorensen, S.L.; Olsson, B. J.; Widlund, O; Huldt, S., et al. (1990). A normal-incidence beam line at the MAX storage ring. Nuclear Instruments & Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment, 297, (1-2), 296 - 300
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Published
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English
Authors:
Sorensen, S.L.
;
Olsson, B. J.
;
Widlund, O
;
Huldt, S.
, et al.
Department:
Synchrotron Radiation Research
Pufendorf Institute for Advanced Studies
LTH Profile Area: Photon Science and Technology
Astrophysics
Lund Observatory - Has been reorganised
National Resource Centre for Physics Education
Undergraduate Programme of Studies in Physics within Faculty of Science
Academic Development Unit
Department of Physics
Mathematical Physics
Abstract:
A 1-m normal-incidence monochromator has been designed and installed on a bending-magnet beam line at the MAX storage ring in Lund. The optical properties of the beam line have been investigated via ray-tracing studies and with flux measurements of the beam line-monochromator combination. A resolution of 0.9 Å at 919.8 Å was measured in first-order diffraction with an argon hollow-cathode lamp for slit openings of 100 μm. A photon flux of 2.0 × 1010 at 550 Å with 250 μm slits was measured with a calibrated GaAs photodiode through a 1.5-mm diameter aperture in an aluminum mask on the photodiode. The new instrument has a microcomputer controlled mechanism which optimizes focussing requirements for a scanning monochromator with the requirement of fixed slits and fixed exit beam.
A 1-m normal-incidence monochromator has been designed and installed on a bending-magnet beam line at the MAX storage ring in Lund. The optical properties of the beam line have been investigated via ray-tracing studies and with flux measurements of the beam line-monochromator combination. A resolution of 0.9 Å at 919.8 Å was measured in first-order diffraction with an argon hollow-cathode lamp for slit openings of 100 μm. A photon flux of 2.0 × 1010 at 550 Å with 250 μm slits was measured with a calibrated GaAs photodiode through a 1.5-mm diameter aperture in an aluminum mask on the photodiode. The new instrument has a microcomputer controlled mechanism which optimizes focussing requirements for a scanning monochromator with the requirement of fixed slits and fixed exit beam.
Keywords:
Accelerator Physics and Instrumentation ;
Atom and Molecular Physics and Optics
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