Experimental Station 8-2

Beam line 8-2 can be used to probe a wide range of core levels using photoemission and x-ray absorption spectroscopies. At BL 8-2, currently only one end-stations is available for the general user program. The first end-station is a high throughput setup for soft x-ray spectroscopy measurement – upgrades in progress include a fixed position multipurpose chamber with a load lock system for high throughput sample loading, capable of probing a wide range of materials with absorption and photoemission techniques. 

Status
Open
Supported Techniques
X-ray Absorption Spectroscopy
Photoemission spectroscopy
Soft x-ray absorption spectroscopy (Electron yield and Fluorescence yield)
Main Scientific Disciplines
Condensed Matter Physics
Energy Science
Materials Sciences
Beam Line Specifications

Source

Bending magnet, 4.0 mrad acceptance

  Energy Range Resolution ΔE/E Spot Size Flux (ph/sec)
Focused 100 - 1300 eV ≥ 4 X 10-4 > 0.1 X 0.1 mm2 1 X 1010

 

Optics

  • M0: horizontal deflecting, flat, water-cooled
  • M1: vertical focusing 10:1, elliptically cylinder
  • Monochromator: 6 m spherical grating monochromator
  • M3: horizontal refocusing 1:1, cylinder
  • M4: vertical refocusing 1:1, cylinder

Absorption

N/A

Instrumentation

Spectroscopy endstation

  • Cylindrical mirror analyzer
  • Photodiode for fluorescence yield (FY)
  • Total electron yield (TEY)
  • High throughput load-lock system
Sample Environment
  • UHV
  • Controlling sample temperature: N/A - fixed temperature at 300 K
  • Sample size < 15 x 15 mm2
Data Acquisition and Analysis
  • SPEC
  • Igor Pro
  • PyMCA
Beam Line Phone
650-926-5282. On-site Users: Contact the Duty Operator at 9-926-4040
Beam Line Contact

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