navigation bypass navigation contact us ring status schedules user guide links notices user sites people and policies jobs safety publications meetings microscopes specifications About the ALS science highlights ALSNews home
 

 


 

Beamline 10.3.1

X-ray fluorescence microprobe

Operational

Now

Source characteristics

Bend magnet

Energy range

6–15 keV (with multilayer mirrors)
3–20 keV (without multilayer mirrors)

Monochromator

White light, multilayer mirrors in Kirkpatrick-Baez configuration

Calculated flux (1.9 GeV, 400 mA)

3 x 1010 photons/s at 12.5 keV

Resolving power (E/ΔE)

25 at 12.5 keV

Endstations

Large hutch with optical table

Characteristics

X-ray fluorescence analysis of samples with high elemental sensitivity and high spatial resolution

Spatial resolution

1.0 x 1.2 µm

Detectors

Si(Li)

Spot size at sample

1.0 x 1.2 µm

Samples

Format

Usually flat solids less than 2 cm in diameter mounted between two layers of superclean polypropylene

Sample environment

Air

Special notes

By special arrangement, the focusing mirrors can be removed and white-light beam can be used (e.g., for testing capillary optics, evaluating x-ray collimators)

Scientific applications

Trace-element analysis with high spatial resolution (e.g., silicon solar cells, GaN, atmospheric particulates, environmental soil samples, and biological samples)

Local contacts

Name: Steven S. Cliff
Phone: (510) 495-2103

Name: Donna Hamamoto
Phone: (510) 486-5527
Fax: (510) 486-4102

Spokesperson

Name: Steven S. Cliff
Affiliation: University of California, Davis
Phone: (530) 867-2037
Fax: (530) 752-9804

Beamline phone number

(510) 495-2104

A data sheet about this beamline is available as a PDF file.

Table of all beamlines
Diagram of all beamlines