There are five other beam lines at SSRL that are used at least part-time for XAS studies. What follows is a brief description of the beam lines and the types of experiments usually run on them.
Beam Line 2-3
Beam line 2-3 is a bending magnet side station dedicated to
micro-beam XAS/imaging and diffraction. An in-hutch K-B mirror pair images the
SPEAR3 source and solid-state Ge and Si detectors are provided for micro-XAS/imaging
and a CCD area detector for micro-diffraction. Specific beam line characteristics can be
found here.
Beam Line 4-1
Beam line 4-1 is a wiggler side station with a double-crystal
monochromator and a harmonic rejection mirror. The monochromator has two
different orientations of Si(220) crystals permanently installed that can be
interchanged remotely without warming or breaking vacuum. BL4-1 is typically
used for XAS
on a wide variety of environmental and materials science samples.
Transmission and fluorescence XAS experiments are both possible and the
hutch can accommodate either a Lytle or multi-element Ge detector. The
SMB/XAS liquid helium flow cryostats can be accommodated on this beam
line. Specific beam line characteristics can be found
here.
Beam Line 4-3
Beam line 4-3 is a wiggler side station with a double-crystal
monochromator and a pre-monochromator harmonic rejection mirror. The
monochromator has two different orientations of Si(111) crystals permanently
installed that can be
interchanged remotely without warming or breaking vacuum. BL4-3 is
typically used for low-Z XAS (2-5 keV) on a wide variety of environmental,
biological,
and materials science samples, but can operate up to 14 keV. It is not
possible to run Ni (because of a Ni-coated mirror) and not advised to run Cu
(for the same reason). Transmission and fluorescence XAS
experiments are both possible and the in-hutch instrumentation includes a He
flight path and can accommodate
either a Lytle
or 4-element Si-drift detector. The SMB/XAS liquid helium flow cryostats can be
accommodated, as well as a liquid-He cryostream for 2-5 keV measurements where
the standard cryostat cannot be used. Specific beam line characteristics can be found
here.
Beam Line 10-2
Beam line 10-2 is a wiggler end-station with a liquid
nitrogen-cooled double-crystal monochromator and an upstream focusing
mirror. The monochromator has Si(111) and Si(220) crystals permanently
installed and changing between the two sets can be done remotely without
breaking vacuum or warming. BL10-2 is used for a variety of both
scattering/diffraction and XAS studies, including capillary-focused
micro-XAS/imaging experiments. Transmission and fluorescence XAS
experiments are both possible
and the hutch can accommodate either a Lytle or 13-element Ge detector. The
SMB/XAS liquid helium flow cryostats can be accommodated. Specific beam line
characteristics can be found here.
Beam Line 11-2
Beam line 11-2 is a wiggler end-station with a liquid
nitrogen-cooled double-crystal monochromator, a pre-monochromator
vertical collimation/harmonic rejection mirror, and a post-monochromator
focusing mirror. The monochromator has two different orientations of Si
(220) crystals permanently installed and changing between the two sets
can be done remotely without breaking vacuum or warming. BL11-2 is
dedicated to Molecular Environmental Science and facilities are
available for handling radioactive and other hazardous samples.
Transmission and fluorescence XAS experiments are both possible and the
hutch is equipped with both a Lytle and a 30-element Ge detector with
digital signal processing electronics. A liquid helium flow cryostat is
also available. Specific beam line characteristics can be found
here.
