Radiochemical Studies on the Fission of <span class="aps-inline-formula"><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><msup><mrow><mi mathvariant="normal">Th</mi></mrow><mrow><mn>232</mn></mrow></msup></mrow></math></span> with Li+D Neutrons

A. Turkevich; J. B. Niday; Althea Tompkins

doi:10.1103/PhysRev.89.552

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Radiochemical Studies on the Fission of ${Th}^{232}$ with Li+D Neutrons

A. Turkevich, J. B. Niday^*, and Althea Tompkins^†

Institute for Nuclear Studies, University of Chicago, Chicago, Illinois

^*Present address: California Research and Development Company, Livermore, California.
^†Present address: Institute for the Study of Metals, University of Chicago, Chicago, Illinois.

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Phys. Rev. 89, 552 – Published 1 February, 1953

DOI: https://doi.org/10.1103/PhysRev.89.552

Abstract

The fission of ${Th}^{232}$ with neutrons from lithium bombarded with 7.6-Mev deuterons has been investigated radiochemically. The relative yields of fourteen mass chains, mostly in the light group, have been determined. The yields of symmetrical products are about tenfold higher than in the fission of ${Th}^{232}$ with pile neutrons. Very light mass chains (very asymmetric fission) show a much smaller increase in yield.

References (20)

A. Turkevich and J. B. Niday, Phys. Rev. 84, 52 (1951)
Nishina, Yasaki, Kimura, and Ikawa, Phys. Rev. 58, 660 (1940)
Engelkemeir, Freedman, Seiler, Steinberg, and Winsberg, Radiochemical Studies: The Fission Products (McGraw-Hill Book Company, Inc., New York, 1951), Paper No. 204, National Nuclear Energy Series, Plutonium Project Record, Div. IV, Vol. 9
R. W. Spence, Brookhaven Conference Report BNL-C-9 (July, 1949), unpublished)
Perlman, Goeckermann, Templeton, and Howland, Phys. Rev. 72, 352 (1947) R. H. Goeckermann and I. Perlman, 73, 1127 (1948)
A. S. Newton, Phys. Rev. 75, 17 (1949)
Jones, Fowler, and Paehler, Phys. Rev. 87, 174 (1952)
Ladenburg, Kanner, Barschall, and Van Voorhis, Phys. Rev. 56, 168 (1939)
H. T. Richards, Phys. Rev. 59, 796 (1941) L. L. Green and W. M. Gibson, Proc. Phys. Soc. (London) 62, 407 (1949)
J. L. Fowler and J. M. Slye, Phys. Rev. 77, 787 (1950)
H. G. Thode and R. L. Graham, Can. J. Research A25, 1 (1947) MacNamara, Collins, and Thode, Phys. Rev. 78, 129 (1950) Glendenin, Steinberg, Inghram, and Hess, 84, 860 (1951)
D. M. Hitler and D. S. Martin, Abstract, American Chemical Society Meeting, Atlantic City, New Jersey (September, 1952)
N. Sugarman and R. Schmitt, private communication
E. P. Steinberg, private communication E. P. Steinberg and M. S. Freedman, Paper 219, of [3]
Steinberg, Seiler, Goldstein, and Dudley, talk before the American Association for the Advancement of Science (December, 1947) USAEC declassified document, MDDC 1632 (January 6, 1948), unpublished
Newton [6]
G. T. Seaborg, Pi Lambda Upsilon Lecture, Ohio State University, Columbus, Ohio (March, 1952), unpublished
W. E. Ogle and J. McElhinney, Phys. Rev. 81, 344 (1951)
M. Goldhaber and E. Teller, Phys. Rev. 74, 1046 (1948)
R. W. Spence (private communication)

[c1] A. Turkevich and J. B. Niday, Phys. Rev. 84, 52 (1951)

[c2] Nishina, Yasaki, Kimura, and Ikawa, Phys. Rev. 58, 660 (1940)

[c3] Engelkemeir, Freedman, Seiler, Steinberg, and Winsberg, Radiochemical Studies: The Fission Products (McGraw-Hill Book Company, Inc., New York, 1951), Paper No. 204, National Nuclear Energy Series, Plutonium Project Record, Div. IV, Vol. 9

[c4] R. W. Spence, Brookhaven Conference Report BNL-C-9 (July, 1949), unpublished)

[c5] Perlman, Goeckermann, Templeton, and Howland, Phys. Rev. 72, 352 (1947) R. H. Goeckermann and I. Perlman, 73, 1127 (1948)

[c6] A. S. Newton, Phys. Rev. 75, 17 (1949)

[c7] Jones, Fowler, and Paehler, Phys. Rev. 87, 174 (1952)

[c8] Ladenburg, Kanner, Barschall, and Van Voorhis, Phys. Rev. 56, 168 (1939)

[c9] H. T. Richards, Phys. Rev. 59, 796 (1941) L. L. Green and W. M. Gibson, Proc. Phys. Soc. (London) 62, 407 (1949)

[c10] J. L. Fowler and J. M. Slye, Phys. Rev. 77, 787 (1950)

[c11] H. G. Thode and R. L. Graham, Can. J. Research A25, 1 (1947) MacNamara, Collins, and Thode, Phys. Rev. 78, 129 (1950) Glendenin, Steinberg, Inghram, and Hess, 84, 860 (1951)

[c12] D. M. Hitler and D. S. Martin, Abstract, American Chemical Society Meeting, Atlantic City, New Jersey (September, 1952)

[c13] N. Sugarman and R. Schmitt, private communication

[c14] E. P. Steinberg, private communication E. P. Steinberg and M. S. Freedman, Paper 219, of [3]

[c15] Steinberg, Seiler, Goldstein, and Dudley, talk before the American Association for the Advancement of Science (December, 1947) USAEC declassified document, MDDC 1632 (January 6, 1948), unpublished

[c16] Newton [6]

[c17] G. T. Seaborg, Pi Lambda Upsilon Lecture, Ohio State University, Columbus, Ohio (March, 1952), unpublished

[c18] W. E. Ogle and J. McElhinney, Phys. Rev. 81, 344 (1951)

[c19] M. Goldhaber and E. Teller, Phys. Rev. 74, 1046 (1948)

[c20] R. W. Spence (private communication)

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Radiochemical Studies on the Fission of ${Th}^{232}$ with Li+D Neutrons

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Radiochemical Studies on the Fission of Th232 with Li+D Neutrons

Abstract

References (20)

Radiochemical Studies on the Fission of ${Th}^{232}$ with Li+D Neutrons