Abstract
The neutron spectra of one outer (#10) and two inner (#2 and #3) sites of the Dalhousie University SLOWPOKE-2 reactor (DUSR) have been calibrated for the k 0-based neutron activation analysis (k 0-NAA). The parameters determined include the cadmium ratio (R Cd), epithermal neutron flux shape factor (α), subcadmium-to-epithermal neutron flux ratio (f), thermal-to-fast neutron flux ratio (f F), modified spectral index r(α)(Tn/T0)1/2, Westcott g Lu(T n)-factor, and absolute neutron temperature (T n). The a-values of -0.0098±0.0045 and -0.0425±0.0047 and -0.0422±0.0053 and f-values of 57.1±2.2 and 18.8±0.4 and 18.9±0.4 were obtained for the sites #10, #2 and #3, respectively. The modified spectral index (MSI), g Lu(T n)-factor, and T n have been determined for the handling of ‘non 1/v’ (n,γ) reactions. The accuracy of the method was evaluated by analyzing reference materials.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
A. Simonits, F. De Corte, J. Hoste, J. Radioanal. Chem., 24 (1975) 31.
F. De Corte, The k 0-Standardization Method: A Move to the Optimization of Reactor Neutron Activation Analysis, Habil. Thesis, University of Gent, 1987.
F. De Corte, A. Simonits, A. De Wispelaere, J. Hoste, J. Radioanal. Nucl. Chem., 113 (1987) 145.
F. De Corte, A. Simonits, A. De Wispelaere, E. Elek, J. Radioanal. Nucl. Chem., 133 (1989) 3.
F. De Corte, A. Simonits, J. Radioanal. Nucl. Chem., 133 (1989) 43.
A. Simonits, F. De Corte, S. Van Lierde, S. Pomme, P. Robouch, M. Eguskiza, J. Radioanal. Nucl. Chem., 245 (2000) 199.
F. De Corte, J. Radioanal. Nucl. Chem., 248 (2001) 13.
G. Kennedy, J. St-Pierre, K. Wang, Y. Zhang, J. Preston, C. Grant, M. Vutchkov, J. Radioanal. Nucl. Chem., 245 (2000) 167.
F. De Corte, J. Radioanal. Nucl. Chem., 245 (2000) 157.
X. Lin, F. Baumgartner, X. Li, J. Radioanal. Nucl. Chem., 215 (1997) 179.
O. T. HØgdahl, Neutron Absorption in Pile Neutron Activation Analysis, Report MMPP-226-1, 1962.
M. L. Verheijke, J. Radioanal. Nucl. Chem., 183 (1994) 293.
F. De Corte, L. Moens, K. Sordo-El Hammami, A. Simonits, J. Hoste, J. Radioanal. Chem., 52 (1979) 305.
F. De Corte, L. Moens, A. Simonits, K. Sordo-El Hammami, A. De Wispelaere, J. Hoste, J. Radioanal. Chem., 72 (1982) 275.
F. De Corte, A. Simonits, F. Bellemanns, M. C. Freitas, S. Jovanovic, B. Smodis, G. Erdtmann, H. Petri, A. De Wispelaere, J. Radioanal. Nucl. Chem., 169 (1993) 125.
F. De Corte, F. Bellemans, P. De Neve, A. Simonits, J. Radioanal. Nucl. Chem., 179 (1994) 93.
C. H. Westcott, Effective Cross Section Values for Well Moderated Thermal Reactor, AECL-1101, 3rd ed. Corrected Chalk River Nuclear Laboratory, Chalk River, Ontario, Canada, 1960.
D. E. Ryan, D. C. Stuart, A. Chattopadhyay, Anal. Chim. Acta, 100 (1978) 87.
J. St-Pierre, G. Kennedy, Boil. Tr. Elem. Res., 71-72 (1999) 481.
D. E. Ryan, A. Chatt, J. Holzbecher, Anal. Chim. Acta, 200 (1987) 89.
N. E. Holden, Pure Appl. Chem., 71 (1999) 2309.
S. Van Lierde, F. De Corte, D. Bossus, R. Van Sluijs, S. Pomme, Nucl. Instr. Meth., A422 (1999) 874.
U.S. Geological Survey (USGS): U.S. Geological Survey Certificate of Analysis, Andesite, AGV-1, March 1995.
R. Acharya, J. Holzbecher, A. Chatt, Proc. 3rd Intern. Symp. of Nuclear Analytical Chemistry (NAC-III), Halifax, Canada, 2001.
F. De Corte, A. Simonits, F. Vanhaekcke, Proc. 2nd Intern. k 0 Users Workshop, Ljubljana, Slovenia, 1996, p. 41.
T. El Nimr, F. De Corte, L. Moens, A. Simonits, J. Hoste, J. Radioanal. Chem., 67 (1981) 421.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Acharya, R., Chatt, A. Characterization of the Dalhousie University SLOWPOKE-2 reactor for k0-NAA and application to medium-lived nuclides. Journal of Radioanalytical and Nuclear Chemistry 257, 525–529 (2003). https://doi.org/10.1023/A:1025428229007
Issue Date:
DOI: https://doi.org/10.1023/A:1025428229007