Universität zu Köln

Ophoven, Niklas, Ilic, Zeljko, Mauerhofer, Eric, Randriamalala, Tsitohaina H., Vezhlev, Egor, Stieghorst, Christian, Revay, Zsolt, Brueckel, Thomas, Jolie, Jan ORCID: 0000-0003-4617-3786 and Strub, Erik (2022). Fast neutron induced gamma rays from (n,n'), (n,p) and (n,alpha) reactions on CaCO3. J. Radioanal. Nucl. Chem., 331 (12). S. 5729 - 5741. DORDRECHT: SPRINGER. ISSN 1588-2780

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Abstract

Emission of prompt gamma rays following (n,n'), (n,p) and (n,alpha) reactions induced by irradiation of a calcium carbonate (CaCO3) sample with a beam of fission neutrons was investigated with a modified version of the FaNGaS (Fast Neutron-induced Gamma-ray Spectrometry) instrument operated at the Heinz Maier-Leibnitz Zentrum (MLZ) in Garching. The neutron spectrum has an average energy of 2.30 MeV and at sample position the fast neutron flux was (1.13 +/- 0.04) x 10(8) cm(-2) s(-1). The measurement was performed at an angle of 90 degrees between neutron beam and detector. In total, we claim the identification of 38 prompt gamma lines, from which we have assigned 12 to the (n,n') reaction in calcium (7 for Ca-40, 1 for Ca-42 and 4 for Ca-44), 1 to the C-12(n,n')C-12 reaction, and 2 to the (n,n') reaction in oxygen (1 for O-16 and 1 for O-18). The other observed gamma lines are attributed to the Ca-40(n,p)K-40 reaction (20 lines) and to the Ca-40(n,alpha)Ar-37 reaction (3 lines). Relative intensities and fast neutron spectrum averaged partial cross sections of the gamma lines are presented and compared with available literature data. Our results were found to be in good agreement with available literature data but also improved and complemented it, as we have pointed out possible errors and identified new lines. Additionally, for a counting time of 12 h the detection limits of calcium, carbon and oxygen were determined as 5, 13 and 64 mg, respectively.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Ophoven, Niklas UNSPECIFIED UNSPECIFIED UNSPECIFIED Ilic, Zeljko UNSPECIFIED UNSPECIFIED UNSPECIFIED Mauerhofer, Eric UNSPECIFIED UNSPECIFIED UNSPECIFIED Randriamalala, Tsitohaina H. UNSPECIFIED UNSPECIFIED UNSPECIFIED Vezhlev, Egor UNSPECIFIED UNSPECIFIED UNSPECIFIED Stieghorst, Christian UNSPECIFIED UNSPECIFIED UNSPECIFIED Revay, Zsolt UNSPECIFIED UNSPECIFIED UNSPECIFIED Brueckel, Thomas UNSPECIFIED UNSPECIFIED UNSPECIFIED Jolie, Jan UNSPECIFIED orcid.org/0000-0003-4617-3786 UNSPECIFIED Strub, Erik UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-679692
DOI:	10.1007/s10967-022-08594-6
Journal or Publication Title:	J. Radioanal. Nucl. Chem.
Volume:	331
Number:	12
Page Range:	S. 5729 - 5741
Date:	2022
Publisher:	SPRINGER
Place of Publication:	DORDRECHT
ISSN:	1588-2780
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language NUCLEAR-DATA SHEETS; ENERGY-LEVELS; LIGHT-NUCLEI; INELASTIC-SCATTERING; ELEMENTAL ANALYSIS Multiple languages Chemistry, Analytical; Chemistry, Inorganic & Nuclear; Nuclear Science & Technology Multiple languages
URI:	http://kups.ub.uni-koeln.de/id/eprint/67969