Use of a Synchrotron Radiation X-Ray Microprobe for Elemental Analysis at the National Synchrotron Light Source

Conference · Tue Apr 01 04:00:00 EST 1980

OSTI ID:5417267

Gordon, B. M.

The National Synchrotron Light Source (NSLS) is a facility consisting of a 700 MeV and a 2.5 GeV electron storage ring and dedicated to providing synchrotron radiation in the energy range from the vacuum ultraviolet to high energy x rays. Some of the properties of synchrotron radiation that contribute to its usefulness for x-ray fluorescence are: a continuous, tunable energy spectrum, strong collimation in the horizontal plane, high polarization in the storage ring plane, and relatively low energy deposition. The highest priority is for the development of an x-ray microprobe beam line capable of trace analysis in the parts per million range with spatial resolution as low as one micrometer. An eventual capability for bulk sample analysis is also planned with sensitivities in the more favorable cases being as low as 50 parts per billion in dry biological tissue. The microprobe technique has application to a variety of fields including the geological, medical, materials and environmental sciences. Examples of investigations include multielemental trace analysis across grain boundaries for the study of diffusion and cooling processes in geological and materials sciences samples; in leukocytes and other types of individual cells for studying the relationship between trace element concentrations and disease or nutrition; and in individual particles in air pollution samples.

• Research Organization: Brookhaven National Lab., Upton, NY (USA)
• Sponsoring Organization: USDOE
• DOE Contract Number: EY-76-C-02-0016
• OSTI ID: 5417267
• Report Number(s): BNL-27611; CONF-800433-2; OCLC: 727297002
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400103* -- Radiometric & Radiochemical Procedures-- (-1987)
ACCELERATORS
BREMSSTRAHLUNG
CHEMICAL ANALYSIS
CYCLIC ACCELERATORS
ELECTROMAGNETIC RADIATION
MICROANALYSIS
NONDESTRUCTIVE ANALYSIS
NSLS
PROBES
RADIATION SOURCES
RADIATIONS
SYNCHROTRON RADIATION
SYNCHROTRON RADIATION SOURCES
SYNCHROTRONS
TRACE AMOUNTS
X-RAY EMISSION ANALYSIS
X-RAY EQUIPMENT
X-RAY FLUORESCENCE ANALYSIS
X-RAY SOURCES