Authors:
E. Macias Washington University Department of Chemistry 63130 St. Louis MO (USA)

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J. Barker Saint Louis University Department of Physics 63103 St. Louis MO (USA)

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Abstract  

The technique of gamma-ray analysis of light elements (GRALE) is extended to measure the concentration of carbon, nitrogen, oxygen, sulfur and silicon in coal samples. The composition of the sample is determined by analyzing the spectrum of gamma rays emitted following inelastic scattering of protons bombarding the target. A large volume lithium drifted germanium detector is used as a gamma-ray detector in this work. Coal samples are irradiated with 9.5 MeV protons in a helium atmosphere for 1000 sec. Results with standard coal samples indicate that the method has an accuracy of ∼5% of the concentration of each element and a precision of ∼4% for elements constituting at least 1% of the coal by weight.

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Journal of Radionalytical and Nuclear Chemistry
Language English
Size A4
Year of
Foundation
1968
Volumes
per Year
1
Issues
per Year
12
Founder Akadémiai Kiadó
Founder's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Publisher Akadémiai Kiadó
Springer Nature Switzerland AG
Publisher's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
CH-6330 Cham, Switzerland Gewerbestrasse 11.
Responsible
Publisher
Chief Executive Officer, Akadémiai Kiadó
ISSN 0236-5731 (Print)
ISSN 1588-2780 (Online)