EXPERIMENTAL STATION 8-1

CURRENT STATUS: Open
SUPPORTED TECHNIQUES:
Photoemission spectroscopy
MAIN SCIENTIFIC DISCIPLINES: BL8-1a: Materials / Surface Chemistry
BL8-1b: Materials
% TIME GENERAL USE: 100%
SCHEDULING: Proposal Submittal and Scheduling Procedures
Current SPEAR and Beam Line Schedules
SOURCE: Bending magnet station (vacuum ultraviolet)
BEAM LINE SPECIFICATIONS:
  energy range grating type resolution
DE/E 		spot size
(FWHM)		 flux angular
acceptance
focused
15 - 185 eV
~1 x 10-3
 0.1 mm2
 
 8.0 mrad
OPTICS: M0 mirror: Cylindrical, SiC
M1 mirror: Spherical, Fused Silica
MONOCHROMATOR: 6m toroidal grating monochromator (TGM)
Grating Monochromator References

Monochromator Crystal Glitch Library

Crystal changes need to be scheduled and coordinated in advance with BL support staff.
ABSORPTION: NA
INSTRUMENTATION: User Chambers on VUV Lines
DATA ACQUISITION AND ANALYSIS: Data Aquisition: Photoemission spectra are collected by electron energy analyzers installed on UHV chambers. Software Super (installed on the beam line computer) can be used to control standard PHI CMA ananlyzers.

Data Analysis: Core level photoemission peak fitting can be performed using any XPS peak fitting procedures. See simple (free) fitting program called XPSPEAK at http://www.phy.cuhk.edu.hk/~surface/XPSPEAK/

BL8-1 Resources, Manual, Documents

X-ray Data Booklet
RESPONSIBLE STAFF: Dan Brehmer, 650-926-3015
Piero Pianetta, 650-926-3484
BEAM LINE PHONE NUMBER: 650-926-5281
On-site Users: Contact the Duty Operator at 9-926-4040
GENERAL DESCRIPTION: BL8-1 is equipped with a post-monochromator beam-splitting mirror to allow for two sample chamber locations. BL8-1a accommodates roll-on user chambers. BL8-1b is under modification to provide energy range from 2eV to 10eV. The mirror cooling system was upgraded in FY04 and the BL8-1 stations are SPEAR3 500 mA compatible. Stations 8-1a and 8-1b cannot be used simultaneously.
See video on the role of aluminum foil in vacuum chamber 'bakeouts.'
Sample Preparation Labs: The SSRL Structural Molecular Biology (SMB) Sample Preparation Laboratories are available to users by prearrangement. To use a laboratory, users must complete laboratory training, and provide a list of all chemicals to be brought, used or stored in the Sample Preparation Laboratory. For details, contact Cynthia Patty (650-926-3925).
SCIENTIFIC APPLICATIONS /
SELECTED RESULTS:
ENGINEERING NOTES: http://www-ssrl.slac.stanford.edu/safety/beamlines/bl8/

SSRL | Beamlines | User Admin | Safety

Last Updated: 28 JAN 2011
Content Owner: Dan Brehmer
Page Editor: Nikola Stojanovic