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Beamline 20-ID-B,C: Sector 20 - Insertion Device Beamline

X-ray Science Division, APS
Materials Science, Environmental Science, Chemistry

Description

A spectroscopy-based beamline with multiple stations: x-ray Raman (LERIX) spectrometer, x-ray microprobe with beams down to 1 micron, and a time-resolved XAFS with 100 psec resolution. We also support in collaboration with PNC scientists an MBE-capable surface XAFS station, and a surface diffractometer.

Supported Techniques

X-ray absorption fine structure

Surface diffraction

X-ray raman scattering

Micro X-ray absorbtion fine structure

Microfluorescence (hard x-ray)

Time-resolved x-ray absorption fine structure

X-ray emission spectroscopy

Beamline Controls and Data Acquisition

Windows XP with LabView, SPEC.

Detectors

Microspec WDX wavelength dispersive spectrometer
Ionization chambers
Multi-element and single-element Ge
NaI scintillation
PIN diodes
Plastic scintillator
Si diodes
Log Spiral Fluorescence detectors
Vortex Si Drift
LERIX spectrometer
Optical spectrometer
Pilatus 100K

Additional Equipment

MBE-capable surface XAFS, reflectivity and standing wave chamber (20-ID-C)
Diamond phase plate
8-circle psi geometry diffractometer
Ti-sapphire laser (20-ID-C) for 100 psec time-resolved XAFS

Local Contacts

Name	STEVE M. HEALD (Microprobe)
Phone	630.252.9795
Email	heald@aps.anl.gov
Name	DALE L. BREWE (Time resolved XAFS)
Phone	630.252.0582
Email	brewe@aps.anl.gov
Name	MAHALING BALASUBRAMANIAN (Lerix)
Phone	630.252.0593
Email	mali@aps.anl.gov

Beamline Specs

Source	3.3 Undulator (Undulator A)
Monochromator Type	Si(111)
Energy Range	4.3-27 keV
Resolution (ΔE/E)	$1.4 x 10$ ^-4
Flux (photons/sec)	$5 x 10$ ¹² @10 keV
Beam Size (HxV)
Focused	400µm x 100µm
Monochromator Type	Si(111)
Energy Range	4.3-27 keV
Resolution (ΔE/E)	$1.4 x 10$ ^-4
Flux (photons/sec)	$1 x 10$ ¹² @10 keV
Beam Size (HxV)
Focused	5µm x 5µm
Monochromator Type	Si(311)
Energy Range	7-52 keV
Resolution (ΔE/E)	$3 x 10$ ^-5
Flux (photons/sec)	$2 x 10$ ¹² @10 keV
Beam Size (HxV)
Unfocused	1mm x 3mm
Monochromator Type	Si(111)
Energy Range	4.3-27 keV
Resolution (ΔE/E)	$1.4 x 10$ ^-4
Flux (photons/sec)	$1 x 10$ ¹¹ @10 keV
Beam Size (HxV)
Focused	2µm x 2µm
Monochromator Type	Si(111)
Energy Range	4.3-27 keV
Resolution (ΔE/E)	$1.4 x 10$ ^-4
Flux (photons/sec)	$1 x 10$ ¹³ @10 keV
Beam Size (HxV)
Unfocused	1mm x 3mm

For additional information see:
http://www.aps.anl.gov/Sectors/Sector20/

Current Status:	Operational/Accepting General Users
Access Mode:	On-site