High-resolution beamline 9.3.2 in the energy range 30–1500 eV at the Advanced Light Source: Design and performance : The 9th National conference on synchrotron radiation instrumentation
Hussain, Z. ; Huff, W.R.A. ; Kellar, S.A. ; Moler, E.J. ; Heimann, P.A. ; McKinney, W. ; Cummings, C. ; Lauritzen, T. ; McKean, J.P. ; Palomares, F.J. ; Wu, H. ; Zheng, Y. ; Young, A.T. ; Padmore, H.A. ; Fadley, C.S. ; Shirley, D.A.
[S.l.] : American Institute of Physics (AIP)
Published 1996
[S.l.] : American Institute of Physics (AIP)
Published 1996
| ISSN: |
1089-7623
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| Source: |
AIP Digital Archive
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| Topics: |
Physics
Electrical Engineering, Measurement and Control Technology
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| Notes: |
Bending magnet beamline 9.3.2 at the Advanced Light Source (ALS) was designed for high resolution spectroscopy with the capability for delivering circularly polarized light in the soft x-ray energy region using three gratings. The monochromator is a fixed included-angle spherical grating monochromator (SGM) and was originally used at SSRL as a prototype for later insertion-device-based monochromators for the ALS. For operation at the ALS, the toroidal pre-mirror used at SSRL was replaced by a horizontally focusing and a vertically focusing mirror in the Kirkpatrick-Baez configuration. Circularly polarized radiation is obtained by inserting a water-cooled movable aperture in front of the vertically focusing mirror to allow selecting the beam either above or below the horizontal plane. To maintain a stable beam intensity through the entrance slit, the photocurrent signals from the upper and lower jaws of the entrance slit are utilized to set a feedback loop with the vertically deflecting mirror piezoelectric drive. The beamline end station has a movable platform that accommodates two experimental chambers enabling the synchrotron radiation to be directed to either one of the two experimental chambers without breaking the vacuum. © 1996 American Institute of Physics.
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| Type of Medium: |
Electronic Resource
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| URL: |