Paul, R.
(2018),
Improving Accuracy, Precision, Detection Limits, and Sample Throughput in PGAA Using Cold and Thermal Neutrons and Element Ratios, Journal of Radioanalytical and Nuclear Chemistry, [online], https://doi.org/10.1007/s10967-018-6212-7
(Accessed December 14, 2024)
Official websites use .gov
A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
Improving Accuracy, Precision, Detection Limits, and Sample Throughput in PGAA Using Cold and Thermal Neutrons and Element Ratios
Published
Author(s)
Abstract
A combination of thermal neutron (TN) and cold neutron (CN) PGAA has been used to improve accuracy, precision, detection limits, and sample throughput time in PGAA. CNPGAA was used to measure element ratios relative to a comparator element, while TNPGAA was used for measurement of the comparator element. Low-Z elements with normally poor sensitivity (C, N, and S) were measured with expanded uncertainties of < 2 % in coal and fuel oil using H as comparator element. Using the combined method, measurements can be made with good counting statistics in less than a third of the time needed for TNPGAA alone, with a 20-30 improvement in detection limits.Citation
Journal of Radioanalytical and Nuclear Chemistry
Volume
318
Issue
3
Pub Type
Journals
Download Paper
Keywords
prompt gamma-ray activation analysis, thermal neutrons, cold neutrons, radiochemistry, analytical chemistry, hydrogen, carbon, nitrogen, sulfur, low-Z elements, elemental analysis
Citation
Issues
If you have any questions about this publication or are having problems accessing it, please contact reflib@nist.gov.
Created December 28, 2018, Updated March 15, 2023