The nuclear reactor circulation circuit as a radiation source
- 13 Downloads
The solution of the problem of circulation circuits with a single radioisotope, which has been found earlier , is applied to the general case where several radioisotopes having radioactive progeny are formed in the substance to be activated. The problems of the absolute maximum circuit power and the consumption of neutrons per unit power for a number of elements which can be used as substances to be activated in the circuit are considered. From among them, the most promising are indium and its alloys.
Special attention is paid to a circulation circuit where the substance to be activated contains a fissionable isotope (“uranium” circuit). It is shown that the specific power of such a circuit, all other conditions being equal, is considerably lower than the specific power of circuits with metallic indium or its alloys. As a particular case of a “uranium” circuit, the circulation from the reactor into the radiation unit,and the reverse,of fuel elements which have not burned up completely is considered. It is shown that, in this case, the power of the unit can be increased two- to fourfold in comparison with the power of a unit, which makes a single use of completely burned-up fuel elements.
KeywordsRadiation Indium Uranium Radiation Source Unit Power
Unable to display preview. Download preview PDF.
- 1.Yu. S. Ryabukhin and A. Kh. Breger, Atomnaya Énergiya5, 533 (1958).Google Scholar
- 2.C. Lock, “Mathematics of fission-product formation in reactors with circulating fuel”, Atomic Energy Research Establ. (Gt. Brit.).Google Scholar
- 3.D. Hughes and J. Harvey, Neutron Cross Sections (N.Y., 1955, McGraw-Hill).Google Scholar
- 4.N. G. Gusev, Manual for Radioactivity and Protection Against Radioactivity [in Russian] (Medgiz, 1956).Google Scholar
- 5.A. N. Nesmeyanov, A. V. Lapitskii, and N. P. Rudnenko, Production of Radioactive Isotopes [in Russian] (Goskhimizdat, 1954).Google Scholar
- 6.G. T. Seaborg, I. Perlman, and J. M. Hollander, Table of Isotopes (1953).Google Scholar
- 7.W. Svirbely and S. Selis, J. Phys. Chem.58, 33 (1954).Google Scholar
- 8.A. Smith and J. Everhart, U. S. Patent No. 2,649,368, American Smelting and Refining Co.Google Scholar
- 9.A. Kh. Breger, Problemy Fiz. Khim. No. 1, 61, 1958.Google Scholar
- 10.C. Stackman, D. Harmon, and H. Heff, Nucleonics15, 94 (1957).Google Scholar
- 11.Nucleonics15, 173 (1957).Google Scholar
- 12.L. Johnson, H. Adams, and M. Barzam, Rubber World No. 1, 137 (1957).Google Scholar
- 13.W. Francis and J. Marsden, Nucleonics15, 80 (1957).Google Scholar
- 14.J. Prawitz and J. Rydberg, Acta Chem. Scand.12, 369 (1958).Google Scholar
- 15.R. Murray, Introduction to Nuclear Techniques [Russian translation] (IL, 1955) p. 275.Google Scholar
- 16.S. E. Bresler, Radioactive Elements [in Russian] (Gostekhizdat, 1952) p. 65.Google Scholar