Abstract
Guided beams of cold neutrons being installed at a number of research reactors may become increasingly available for analytical research. A guided cold beam will provide higher neutron fluence rates and lower background interferences than in present facilities. In an optimized facility, fluence rates of 109 n·cm−2·s−1 are obtainable. Focusing a large area beam onto a small target will further increase the neutron intensity. In addition, the shift to lower neutron energy increases the effective cross sections. The absence of fast neutrons and gamma rays permits detectors to be placed near the sample without intolerable background, and thus the efficiency for counting prompt gamma rays can be much higher than in present systems. Measurements made at the hydrogen cold source of the FRJ-2 (DIDO) reactor at the KFA provide a numerical evaluation of the improvements in PGAA with respect to signal-to-background ratios of important elements and matrices.
Similar content being viewed by others
References
W. G. LUSSIE, J. L. BROWNLEE, Jr., Proc. Conf. Modern Trends in Activation Analysis, 1965, p. 194.
T. L. ISENHOUR, G. H. MORRISON, Anal. Chem., 38 (1966) 162.
T. L. ISENHOUR, G. H. MORRISON, Anal. Chem., 38 (1966) 167.
R. E. CHRIEN, in B. J. ALLEN, I. BERGQVIST R. E. CHRIEN, D. GARDNER (Eds.), Neutron Radiative Capture, Pergamon, Oxford, 1984, p. 187.
R. M. LINDSTROM, D. L. ANDERSON, in S. RAMAN (Ed.), Capture Gamma-Ray Spectroscopy and Related Topics-1984, Am. Inst. Physics, New York, 1985, p. 810.
H. MAIER-LEIBNITZ, T. SPRINGER, J. Nucl. Energy, 17 (1963) 217.
H. MAIER-LEIBNITZ, in N. RYDE (Ed.), Neutron Capture Gamma-Ray Spectroscopy, IAEA, Vienna, 1969, p. 105.
R. HENKELMANN, H. J. BORN, J. Radioanal. Chem., 16 (1973), 473.
T. KOBAYASHI, K. KANDA, Nucl. Instr. Methods, 204 (1983) 525.
K. WERNER, T. SPRINGER, J. DUPPICH, in O. HARLING, L. CLARK, Jr., P. von der HARDT (Eds.), Use and Development of Low and Medium Flux Research Reactors, Karl Thiemig, Munich, 1984, p. 783.
D. L. ANDERSON, W. H. ZOLLER, G. E. GORDON, W. B. WALTERS and R. M. LINDSTROM, in T. von EGIDY, F. GONNENWEIN, B. MAIER (Eds.), Neutron-Capture Gamma-Ray Spectroscopy and Related Topics, Institute of Physics, London, 1982, p. 655.
R. M. LIEDER, H. JÄGER, A. NESKAKIS, T. VENKOVA, C. MICHEL, Nucl. Instr. Methods Phys. Res., 220 (1984) 363.
N. R. JOHNSON, C. BAKTASH, I. Y. LEE, IEEE Trans. Nucl. Sci., NS31 (1984) 243.
G. P. WESTPHAL, J. Radioanal. Chem., 70 (1982) 387.
A. G. KLEIN, S. A. WERNER, Rep. Prog. Phys., 46 (1983) 259.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Lindstrom, R.M., Zeisler, R. & Rossbach, M. Activation analysis opportunities using cold neutron beams. Journal of Radioanalytical and Nuclear Chemistry, Articles 112, 321–330 (1987). https://doi.org/10.1007/BF02132364
Received:
Issue Date:
DOI: https://doi.org/10.1007/BF02132364