Prompt-gamma activation analysis

Technical Report · Fri Jan 01 04:00:00 EST 1993

OSTI ID:6561926

Lindstrom, R M

A permenent, full-time instrument for prompt-gamma activation analysis is nearing completion as part of the Cold Neutron Research Facility (CNRF). The design of the analytical system has been optimized for high gamma detection efficiency and low background, particularly for hydrogen. Because of the purity of the neutron beam, shielding requirements are modest and the scatter-capture background is low. As a result of a compact sample-detector geometry, the sensitivity (counting rate per gram of analyte) is a factor of four better than the existing Maryland-NIST thermal-neutron instrument at the reactor. Hydrogen backgrounds of a few micrograms have already been achieved, which promises to be of value in numerous applications where quantitative nondestructive analysis of small quantities of hydrogen in materials is necessary.

• Research Organization: National Inst. of Standards and Technology, Gaithersburg, MD (United States)
• OSTI ID: 6561926
• Report Number(s): PB-93-166908/XAB
• Country of Publication: United States
• Language: English

Related Subjects

440103* -- Radiation Instrumentation-- Nuclear Spectroscopic Instrumentation
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
665100 -- Nuclear Techniques in Condensed Matter Physics -- (1992-)
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ACTIVATION ANALYSIS
BARYONS
CARBON
CHEMICAL ANALYSIS
COLD NEUTRONS
DIAGNOSTIC USES
ELECTROMAGNETIC RADIATION
ELEMENTARY PARTICLES
ELEMENTS
FERMIONS
FULLERENES
GAMMA RADIATION
HADRONS
HYDROGEN
IONIZING RADIATIONS
MATERIALS
MEASURING INSTRUMENTS
NEUTRONS
NONDESTRUCTIVE ANALYSIS
NONMETALS
NUCLEONS
PROMPT GAMMA RADIATION
RADIATION DETECTORS
RADIATIONS
RESEARCH PROGRAMS
SHIELDING
SPECIFICATIONS
TEMPERATURE EFFECTS
USES