EXPERIMENTAL STATION 4-3

CURRENT STATUS: Open
SUPPORTED TECHNIQUES: X-ray Absorption Spectroscopy
MAIN SCIENTIFIC DISCIPLINES: Environmental / Materials / Biology
% TIME GENERAL USE: 100%
SCHEDULING: Proposal Submittal and Scheduling Procedures
Current SPEAR and Beam Line Schedules
SOURCE: 20-pole, 2.0-Tesla wiggler, 0.75 mrad, side station
BEAM LINE SPECIFICATIONS:
  energy range resolution
DE/E
spot size flux angular
acceptance
unfocused
  2400-14000 eV
    10-4
     3 x 16 mm
 
0.75 mrad
OPTICS: M0 mirror: Flat, bent vertically collimating, 1 m, Si, Rh-coated, cutoff 4-14 keV, LN2-cooled monochromator
MONOCHROMATOR: Si(111) f=0° or Si(111) f=90° double-crystal, non-fixed exit slit

Monochromator Crystal Glitch Library

Crystal changes need to be scheduled and coordinated in advance with BL support staff.
ABSORPTION: 127 micron Be
INSTRUMENTATION: Varies: Rails, Ge Detector Array, Ionization Chamber Detectors, PIPS detector, Vortex detector, LHe Cryostat, Soft X-ray Instrumentation
DATA ACQUISITION AND ANALYSIS: Data Aquisition: XAS-Collect

Data Analysis: EXAFSPAK

X-ray Data Booklet
RESPONSIBLE STAFF: Matthew Latimer, 650-926-4944 (office), 510-259-8102 (cell)
Erik Nelson, 650-926-5103 (office), 415-218-5505 (cell)
BEAM LINE PHONE NUMBER: 650-926-5243
On-site Users: Contact the Duty Operator at 9-926-4040
GENERAL DESCRIPTION:

BL4-3 is dedicated to x-ray absorption spectroscopy measurements with special capabilities for soft-energy (2.4-6 keV) studies in addition to hard x-rays.  Equipment includes multi-array Ge detectors, LHe cryostat and soft x-ray instrumentation. Applicationas include mainly MEIS, biology and materials science, with some use in chemistry andphysics. This station enables soft x-ray measurement (from S K-edge and up).

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/bl4/

SSRL | Beamlines | User Admin | Safety

Last Updated: 28 JAN 2011
Content Owner: Matthew Latimer
Page Editor: Nikola Stojanovic