Abstract
The thermal neutron cross-sections and resonance integrals of the 186W (n,γ) 187W and 98Mo (n,γ) 99Mo reactions in the thermal and 1/E regions, respectively, of a thermal reactor neutron spectrum have been experimentally determined by the activation method using 197Au (n,γ) 198Au reaction as a single comparator. The high purity natural W, Mo, and Zr foils; and Au wire diluted in aluminum, were irradiated without Cd shield in two neutron irradiation sites, characterized with different values for the thermal-to-epithermal flux ratios, f at the Second Egyptian Research Reactor (ETRR-2). The induced activities in the samples were measured by high-resolution γ-ray spectrometry with a calibrated germanium detector. Thermal neutron cross-sections for 2200 m/s neutrons and resonance integrals for the 186W (n,γ) 187W and 98Mo (n,γ) 99Mo reactions have been obtained relative to the reference values, σ0 = 98.65 ± 0.09 b and I 0 = 1500 ± 28 b for the 197Au (n,γ) 198Au reaction. The necessary correction factors for thermal neutron and resonance neutron self-shielding effects, and the epithermal flux index (α) were taken into account in the determinations. The results obtained were: σ0 = 38.43 ± 0.4 b and I 0 = 502 ± 65 b for 186W (n,γ) 187W, and σ0 = 0.137 ± 0.014 band I 0 = 6.47 ± 0.8 for 98Mo (n,γ) 99Mo. These results are discussed and compared with previous measurements and evaluated data in literature. The traditional method of determining thermal cross-sections and resonance integrals via neutron irradiation with and without Cd shield in one irradiation position was avoided in this work by neutron irradiation without Cd shield in at least two different neutron irradiation positions. This method provides alternative way for determining thermal cross-sections and resonance integrals simultaneously.
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Nguyen D, Pham K, Kim T, Le Truong S, Guinyun YoungL, Seok K, YoungdoO Hee-SeokL, Moo-Hyun C, In Soo K, Won N (2008) Nucl Instrum Methods B 266:863–871
Moustapha EM, Ehrhardta JG, Smith JC, Szajek PL, Eckelman WC, Jurisson SS (2006) Nucl Med Biol 33:81–89
Jun Sig L, Jong-Soup L, UI-Jae P, Kwang-Jae S, Hyon-Soo H (2009) Appl Radiat Isot 67:1162–1166
Uddin S, Hagiwara M, Tarkanyi F, Ditroi F, Baba M (2004) Appl Radiat Isot 60:911–920
Ryabchikov A, Skuridin S, Nesterov V, Chibisov V, Golovkov M (2004) Nucl Instrum Methods B 213:364–368
Zolle I (2007) Technetium-99m radiopharmaceuticals: preparation and quality control in nuclear medicine. Springer, Berlin
Maekawa F, Wada M, Konno C, Kasugai Y, Ikeda Y (2000) Fusion Eng Des 51–52:809–814
Barabash V, Federici G, R€odig M, Snead L, Wu H (2000) J Nucl Mater 283–287:138–146
Barabash V, Federici GJ, Linke H, Wu (2003) J Nucl Mater 313–316:42–51
Karadag M, Yucel H (2004) Ann Nucl Energy 31:1285–1297
Gillette JH (1966) Oak Ridge National Lab, Preprint: ORNL-4013, Vol 5
Kafala SI, MacMahon TD, Borzakov SB (1997) J Radioanal Nucl Chem 215:193–204
Damle PP, Fabry A, Jacquemin R (1967) Study of the reaction 186W(n, γ)187W, Report from Euratom to EANDC-76, Jan. 1967, p 107
Fabry A, Jacquemin R (1969) Progress Report, March 1969, p 195, Available from: Exfor Data Bank
Dahlberg R, Jirlow K, Johansson E (1961) J Nucl Energy 14:53–54
De Corte F, Speecke A, Hoste J (1971) J Radioanal Chem 9:9–17
De Soete D, Gijbels R, Hoste J (1972) Neutron Activation Analysis, John Wiley & Sons Ltd.
Høgdahl OT (1962) neutron absorption in pile neutron activation, Report MMPP-226-1, 1962
Westcott CH (1960) Effective cross section values for well-moderated thermal reaction spectra, Chalk River Laboratory, Atomic Energy of Canada Limited, Technical Report CRRP-960 (3rd Edition corrected) 1960
Stoughton RW, Halperin J (1959) Nucl Sci Eng 6:100–118
Ryves TB, Paul EB (1968) J Nucl Energy 22:759–775
De Corte F, Moens L, Jovanovic S, Simonits A, De Wispelaere A (1986) J Radioanal Nucl Chem 102:37–57
Blaauw M (1995) Nucl Instrum Methods A 356:307–403
Martinho E, Goncalves F, Salgado J (2003) Appl Radiat Isot 58:371–375
NuDat2 (2007) The Nu Dat Program for Nuclear Data on the Web, National Nuclear Center, Brookhaven National Laboratory, Version 2.4 http://www.nndc.bnl.gov/nudat2/
De Corte F (2003) J Radioanal Nucl Chem 257:493–499
Holden E (1998) Neutron scattering and absorption properties, CRC handbook of chemistry and physics, 79th edn. CRC Press, New York
De Corte F, Simonits A (1989) J Radioanal Nucl Chem Artic 133:43–130
Gryntakis E, Cullen DE, Mundy G (1987) Handbook on nuclear activation data, IAEA Technical Reports Series 273, Vienna
Damle PP, Fabry A, Jacquemin R (1967) Study of the reaction 186W(n,γ) 187W. Report from Euratom-Countries + Euratom to EANDC-76, 107(2)
Mughabghab S (1984) Neutron Cross section. Vol 1. Academic press, Inc., Santiago
Simonits A, De Corte F, Elnimr T, Moens L, Hoste J (1984) J Radioanal Nucl Chem Artic 81:379–415
Gillette JH (1966) Preprint: ORNL-4013, Vol.5, Oak Ridge National Lab. 1966
Chadwick MB et al (2006) ENDF/B-VII.0: next generation evaluated nuclear data library for nuclear science and technology. Nucl Data Sheets 107(2006):2931–3060
Shibata K et al (2002) Japanese Evaluated Nuclear Data Library Version 3 Revision-3: JENDL-3.3, J Nucl Sci Technol 39:1125–1136 http://wwwndc.tokai-sc.jaea.go.jp/endl/j33/j33.html
JFF Report14 (1994) Table of simple integral neutron cross section data From JEFF-2.2, ENDF/B-VI, JENDL-3.2, BROND- 2 and CENDL-2, OECD, 1994
Garland MA, Mirzadeh S, Alexander CW, Hirtz GJ, Hobbs RW, Pertmer GA, Knapp JFF (2003) Appl Radiat Isot 59(1):63–72
Hayodom V, Boonkong W, Mahapanyawong S, Chaimonkon C (1969) Thai-AEC23 Progress Report, Thailand
Harris SP, Muehlhause CO, Thomas GE (1950) Phys Rev 79(1):11–18
Herf RE (1978) A consistent set of nuclear parameter values for absolute INAA, in Conference on computers in activation analysis and gamma-ray spectroscopy, Mayaguez, Puerto Rico, 30 April–4 May, 1978, p 495
Gleason G (1977) Thermal Neutron (n,γ) Part2, Private Communication to NEA-Data Bank, Exfor Accession No. 10662004,1977, http://www-nds.iaea.org/exfor/exfor00.htm
De Corte F, Simonits A (1988) Nuclear data for science and technology (Mito 1988), In: H. Schoper (ed), JAERI 1988, Springer Verlarg, Berlin, Heidelberg, 2000, p 583
Babich SI, Anufriev VA (1989) Atomnaya Energiya 67:140–141
Nguyen D, Pham K, Kim T, Bui Van L, Rahman Md S, Kyung Sook K, Guinyun K, Youngdo O, Hee-Seok L, Moo-Hyun C, In Soo K, Won N (2009) Nucl Instrum Methods 267(3):462–468
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El Abd, A. Measurements of the thermal neutron cross-sections and resonance integrals for 186W (n,γ) 187W and 98Mo (n,γ) 99Mo reactions. J Radioanal Nucl Chem 284, 321–326 (2010). https://doi.org/10.1007/s10967-010-0487-7
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DOI: https://doi.org/10.1007/s10967-010-0487-7