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Title: MERLIN - A meV Resolution Beamline at the ALS

Abstract

An ultra-high resolution beamline is being constructed at the Advanced Light Source (ALS) for the study of low energy excitations in strongly correlated systems with the use of high-resolution inelastic scattering and angle-resolved photoemission. This new beamline, given the acronym Merlin (for meV resolution line), will cover the energy range 10-150 eV. The monochromator has fixed entrance and exit slits and a plane mirror that can illuminate a spherical grating at the required angle of incidence (as in the SX-700 mechanism). The monochromator can be operated in two different modes. In the highest resolution mode, the energy scanning requires translating the monochromator chamber (total travel 1.1 m) as well as rotating the grating and the plane mirror in front of the grating. The resolution in this mode is practically determined by the slits width. In the second mode, the scanning requires rotating the grating and the plane mirror. This mode can be used to scan a few eV without a significant resolution loss. The source for the beamline is a 1.9 m long, 90 mm period quasi periodic EPU. The expected flux at the sample is higher than 1011 photons/s at a resolving power of 5 x 104 in themore » energy range 16-130 eV. A second set of gratings can be used to obtain higher flux at the expense of resolution.« less

Authors:
 [1]; ; ; ; ; ; ; ;  [2]; ;  [2];  [3];  [2];  [3]
  1. Scientific Answers and Solutions, 5708 Restal St., Madison, WI 53711 (United States)
  2. Advanced Light Source, Lawrence Berkeley National Laboratory, CA 94720 (United States)
  3. (United States)
Publication Date:
OSTI Identifier:
21052565
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 879; Journal Issue: 1; Conference: 9. international conference on synchrotron radiation instrumentation, Daegu (Korea, Republic of), 28 May - 2 Jun 2006; Other Information: DOI: 10.1063/1.2436110; (c) 2007 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
43 PARTICLE ACCELERATORS; ADVANCED LIGHT SOURCE; BEAM PRODUCTION; DIFFRACTION GRATINGS; EV RANGE; EXCITATION; INCIDENCE ANGLE; INELASTIC SCATTERING; MEV RANGE; MIRRORS; MONOCHROMATORS; PERIODICITY; PHOTOEMISSION; PHOTON BEAMS; RESOLUTION; X RADIATION

Citation Formats

Reininger, Ruben, Bozek, John, Chuang, Y.-D., Howells, Malcolm, Kelez, Nicholas, Prestemon, Soren, Marks, Steve, Warwick, Tony, Hussain, Zahid, Jozwiak, Chris, Lanzara, Alessandra, University of California at Berkeley. CA 94720, Hasan, M. Zahid, and Joseph Henry Laboratories, Department of Physics, Princeton University, Princeton, NJ 08544. MERLIN - A meV Resolution Beamline at the ALS. United States: N. p., 2007. Web. doi:10.1063/1.2436110.
Reininger, Ruben, Bozek, John, Chuang, Y.-D., Howells, Malcolm, Kelez, Nicholas, Prestemon, Soren, Marks, Steve, Warwick, Tony, Hussain, Zahid, Jozwiak, Chris, Lanzara, Alessandra, University of California at Berkeley. CA 94720, Hasan, M. Zahid, & Joseph Henry Laboratories, Department of Physics, Princeton University, Princeton, NJ 08544. MERLIN - A meV Resolution Beamline at the ALS. United States. doi:10.1063/1.2436110.
Reininger, Ruben, Bozek, John, Chuang, Y.-D., Howells, Malcolm, Kelez, Nicholas, Prestemon, Soren, Marks, Steve, Warwick, Tony, Hussain, Zahid, Jozwiak, Chris, Lanzara, Alessandra, University of California at Berkeley. CA 94720, Hasan, M. Zahid, and Joseph Henry Laboratories, Department of Physics, Princeton University, Princeton, NJ 08544. Fri . "MERLIN - A meV Resolution Beamline at the ALS". United States. doi:10.1063/1.2436110.
@article{osti_21052565,
title = {MERLIN - A meV Resolution Beamline at the ALS},
author = {Reininger, Ruben and Bozek, John and Chuang, Y.-D. and Howells, Malcolm and Kelez, Nicholas and Prestemon, Soren and Marks, Steve and Warwick, Tony and Hussain, Zahid and Jozwiak, Chris and Lanzara, Alessandra and University of California at Berkeley. CA 94720 and Hasan, M. Zahid and Joseph Henry Laboratories, Department of Physics, Princeton University, Princeton, NJ 08544},
abstractNote = {An ultra-high resolution beamline is being constructed at the Advanced Light Source (ALS) for the study of low energy excitations in strongly correlated systems with the use of high-resolution inelastic scattering and angle-resolved photoemission. This new beamline, given the acronym Merlin (for meV resolution line), will cover the energy range 10-150 eV. The monochromator has fixed entrance and exit slits and a plane mirror that can illuminate a spherical grating at the required angle of incidence (as in the SX-700 mechanism). The monochromator can be operated in two different modes. In the highest resolution mode, the energy scanning requires translating the monochromator chamber (total travel 1.1 m) as well as rotating the grating and the plane mirror in front of the grating. The resolution in this mode is practically determined by the slits width. In the second mode, the scanning requires rotating the grating and the plane mirror. This mode can be used to scan a few eV without a significant resolution loss. The source for the beamline is a 1.9 m long, 90 mm period quasi periodic EPU. The expected flux at the sample is higher than 1011 photons/s at a resolving power of 5 x 104 in the energy range 16-130 eV. A second set of gratings can be used to obtain higher flux at the expense of resolution.},
doi = {10.1063/1.2436110},
journal = {AIP Conference Proceedings},
number = 1,
volume = 879,
place = {United States},
year = {Fri Jan 19 00:00:00 EST 2007},
month = {Fri Jan 19 00:00:00 EST 2007}
}