High heat load crystal cooling strategies for an APS wiggler beamline

Conference · Tue Jul 01 04:00:00 EDT 1997

OSTI ID:565599

Beno, M A; Knapp, G S; Engbretson, M ^[1]

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1. and others

High energy wigglers produce extremely high total powers. For example, the insertion device for one beamline of the Basic Energy Sciences Synchrotron Research Center (BESSRC) is an elliptical multipole wiggler (EMPW) which can generate circularly polarized X-rays on axis and produces a total power of {approximately}8 kW. This insertion device will be used to simultaneously provide x-rays to three branch lines, a branch equipped with a normal double crystal monochromator feeding a scattering and spectroscopy station, and two branches with single-bounce horizontally deflecting monochromators for Compton scattering and High Energy Diffraction. The crystal optics for this type of device require substantially different heat load solutions than those used for undulator beamlines. We will discuss how the beam is split and shared among the beamline branch lines and present the crystal cooling strategies employed for both the double-crystal monochromator and horizontally deflecting single-bounce monochromators.

• Research Organization: Argonne National Lab., IL (United States)
• Sponsoring Organization: USDOE Office of Energy Research, Washington, DC (United States)
• DOE Contract Number: W-31109-ENG-38
• OSTI ID: 565599
• Report Number(s): ANL/MSD/CP--93788; CONF-970706--; ON: DE97053745
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
66 PHYSICS
ADVANCED PHOTON SOURCE
BEAM OPTICS
BEAM SPLITTING
CRYSTALS
MONOCHROMATORS
SYNCHROTRON RADIATION
WIGGLER MAGNETS