U.S. Department of EnergyOffice of Scientific and Technical Information
Prompt-gamma activation analysis
Abstract
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.
- Authors:
- Publication Date:
- Research Org.:
- National Inst. of Standards and Technology, Gaithersburg, MD (United States)
- OSTI Identifier:
- 6561926
- Report Number(s):
- PB-93-166908/XAB
- Resource Type:
- Technical Report
- Resource Relation:
- Other Information: Included in Jnl. of Research of the National Institute of Standards and Technology, v. 98, no. 1, p. 127-133 (Jan/Feb 1993)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; MATERIALS; NONDESTRUCTIVE ANALYSIS; PROMPT GAMMA RADIATION; DIAGNOSTIC USES; RADIATION DETECTORS; SPECIFICATIONS; ACTIVATION ANALYSIS; COLD NEUTRONS; FULLERENES; HYDROGEN; RESEARCH PROGRAMS; SHIELDING; TEMPERATURE EFFECTS; BARYONS; CARBON; CHEMICAL ANALYSIS; ELECTROMAGNETIC RADIATION; ELEMENTARY PARTICLES; ELEMENTS; FERMIONS; GAMMA RADIATION; HADRONS; IONIZING RADIATIONS; MEASURING INSTRUMENTS; NEUTRONS; NONMETALS; NUCLEONS; RADIATIONS; USES; 440103* - Radiation Instrumentation- Nuclear Spectroscopic Instrumentation; 665100 - Nuclear Techniques in Condensed Matter Physics - (1992-)
Citation Formats
Lindstrom, R M. Prompt-gamma activation analysis. United States: N. p., 1993.
Web.
Lindstrom, R M. Prompt-gamma activation analysis. United States.
Lindstrom, R M. 1993.
"Prompt-gamma activation analysis". United States.
@article{osti_6561926,
title = {Prompt-gamma activation analysis},
author = {Lindstrom, R M},
abstractNote = {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.},
doi = {},
url = {https://www.osti.gov/biblio/6561926},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Fri Jan 01 00:00:00 EST 1993},
month = {Fri Jan 01 00:00:00 EST 1993}
}