Authors:
M. Arribére Comisión Nacional de Energia Atómica and Instituto Balseiro-Universidad Nacional de Cuyo Centro Atómico Bariloche 8400 Bariloche Argentina

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I. Cohen Comisión Nacional de Energia Atómica Centro Atómico Ezeiza 1804 Ezeiza Argentina

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A. Kestelman Comisión Nacional de Energia Atómica and Instituto Balseiro-Universidad Nacional de Cuyo Centro Atómico Bariloche 8400 Bariloche Argentina

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S. Guevara Comisión Nacional de Energia Atómica and Instituto Balseiro-Universidad Nacional de Cuyo Centro Atómico Bariloche 8400 Bariloche Argentina

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Abstract  

We investigated the use of threshold reactions on magnesium, aluminum, silicon and phosphorus to determine elemental concentrations and also to correct analytical interferences, using the parametric method. The reactor neutron spectrum averaged cross sections of the threshold reactions on these elements were referred to the (111±3) mb value for the 58Ni(n,p)58g+mCo reaction cross section. The results of the cross section measurements are: 25Mg(n,p)25Na, 1.57±0.12 mb; 28Si(n,p)28Al, 5.68±0.25 mb; 29Si(n,p)29Al, 3.02±0.15 mb; 30Si(n,)27Mg, 0.1346±0.0090 mb; and 31P(n,)28Al, 1.912±0.083 mb. The values for the cross sections of the following reactions: 24Mg(n,p)24Na, 1.441±0.092 mb; 27Al(n,p)27Mg, 3.84±0.18 mb; and 27Al(n,)24Na 0.721±0.028 mb were re-measured to check the methodology. We present the application of these values to the analysis of some reference materials.

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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)