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A versatile Johansson-type tender x-ray emission spectrometer.
Nowak, S H; Armenta, R; Schwartz, C P; Gallo, A; Abraham, B; Garcia-Esparza, A T; Biasin, E; Prado, A; Maciel, A; Zhang, D; Day, D; Christensen, S; Kroll, T; Alonso-Mori, R; Nordlund, D; Weng, T-C; Sokaras, D.
Affiliation
  • Nowak SH; SLAC National Accelerator Laboratory, 2575 Sand Hill Rd., Menlo Park, California 94025, USA.
  • Armenta R; SLAC National Accelerator Laboratory, 2575 Sand Hill Rd., Menlo Park, California 94025, USA.
  • Schwartz CP; SLAC National Accelerator Laboratory, 2575 Sand Hill Rd., Menlo Park, California 94025, USA.
  • Gallo A; SLAC National Accelerator Laboratory, 2575 Sand Hill Rd., Menlo Park, California 94025, USA.
  • Abraham B; SLAC National Accelerator Laboratory, 2575 Sand Hill Rd., Menlo Park, California 94025, USA.
  • Garcia-Esparza AT; SLAC National Accelerator Laboratory, 2575 Sand Hill Rd., Menlo Park, California 94025, USA.
  • Biasin E; SLAC National Accelerator Laboratory, 2575 Sand Hill Rd., Menlo Park, California 94025, USA.
  • Prado A; SLAC National Accelerator Laboratory, 2575 Sand Hill Rd., Menlo Park, California 94025, USA.
  • Maciel A; SLAC National Accelerator Laboratory, 2575 Sand Hill Rd., Menlo Park, California 94025, USA.
  • Zhang D; SLAC National Accelerator Laboratory, 2575 Sand Hill Rd., Menlo Park, California 94025, USA.
  • Day D; SLAC National Accelerator Laboratory, 2575 Sand Hill Rd., Menlo Park, California 94025, USA.
  • Christensen S; National Renewable Energy Laboratory, 15013 Denver West Parkway, Golden, Colorado 80401, USA.
  • Kroll T; SLAC National Accelerator Laboratory, 2575 Sand Hill Rd., Menlo Park, California 94025, USA.
  • Alonso-Mori R; SLAC National Accelerator Laboratory, 2575 Sand Hill Rd., Menlo Park, California 94025, USA.
  • Nordlund D; SLAC National Accelerator Laboratory, 2575 Sand Hill Rd., Menlo Park, California 94025, USA.
  • Weng TC; SLAC National Accelerator Laboratory, 2575 Sand Hill Rd., Menlo Park, California 94025, USA.
  • Sokaras D; SLAC National Accelerator Laboratory, 2575 Sand Hill Rd., Menlo Park, California 94025, USA.
Rev Sci Instrum ; 91(3): 033101, 2020 Mar 01.
Article in En | MEDLINE | ID: mdl-32259983
ABSTRACT
We present a high energy resolution x-ray spectrometer for the tender x-ray regime (1.6-5.0 keV) that was designed and operated at Stanford Synchrotron Radiation Lightsource. The instrument is developed on a Rowland geometry (500 mm of radius) using cylindrically bent Johansson analyzers and a position sensitive detector. By placing the sample inside the Rowland circle, the spectrometer operates in an energy-dispersive mode with a subnatural line-width energy resolution (∼0.32 eV at 2400 eV), even when an extended incident x-ray beam is used across a wide range of diffraction angles (∼30° to 65°). The spectrometer is enclosed in a vacuum chamber, and a sample chamber with independent ambient conditions is introduced to enable a versatile and fast-access sample environment (e.g., solid/gas/liquid samples, in situ cells, and radioactive materials). The design, capabilities, and performance are presented and discussed.
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Full text: 1 Database: MEDLINE Language: En Journal: Rev Sci Instrum Year: 2020 Type: Article Affiliation country: United States
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Add to My VHL
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Full text: 1 Database: MEDLINE Language: En Journal: Rev Sci Instrum Year: 2020 Type: Article Affiliation country: United States