Production of cold target-like fragments in the reaction of <span class="aps-inline-formula"><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><mmultiscripts><mrow><mi mathvariant="normal">Ca</mi></mrow><mprescripts></mprescripts><mrow></mrow><mrow><mn>48</mn></mrow><mrow></mrow><mrow></mrow></mmultiscripts></mrow></math></span><span class="aps-inline-formula"><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><msup><mrow><mo>+</mo></mrow><mrow><mn>248</mn></mrow></msup></mrow></math></span>Cm

H. Gäggeler; W. Brüchle; M. Brügger; M. Schädel; K. Sümmerer; G. Wirth; J. V. Kratz; M. Lerch; Th. Blaich; G. Herrmann; N. Hildebrand; N. Trautmann; D. Lee; K. J. Moody; K. E. Gregorich; R. B. Welch; G. T. Seaborg; D. C. Hoffman; W. R. Daniels; M. M. Fowler; H. R. von Gunten

doi:10.1103/PhysRevC.33.1983

Production of cold target-like fragments in the reaction of ${}^{48}{Ca}$ $+^{248}$ Cm

H. Gäggeler, W. Brüchle, M. Brügger, M. Schädel, K. Sümmerer, G. Wirth, J. V. Kratz, M. Lerch, Th. Blaich, G. Herrmann, N. Hildebrand, N. Trautmann, D. Lee, K. J. Moody, K. E. Gregorich, R. B. Welch, G. T. Seaborg, D. C. Hoffman, W. R. Daniels, M. M. Fowler, and H. R. von Gunten

Phys. Rev. C 33, 1983 – Published 1 June 1986

Abstract

Yields for isotopes of Rn through Pu have been measured in the reaction ${}^{48}{Ca}$ $+^{248}$ Cm at an energy of 248–263 MeV (1.04–1.10 times the Coulomb barrier). Despite the low bombarding energy, high and essentially constant integral yields of about 1 to 2 mb for the elements Rn through U were observed. There is evidence that these nuclides are produced with little excitation energy.

Received 26 November 1985

DOI:https://doi.org/10.1103/PhysRevC.33.1983

Authors & Affiliations

H. Gäggeler, W. Brüchle, M. Brügger, M. Schädel, K. Sümmerer, and G. Wirth

Gesellschaft für Schwerionenforschung, D-6100 Darmstadt, Federal Republic of Germany

J. V. Kratz, M. Lerch, Th. Blaich, G. Herrmann, N. Hildebrand, and N. Trautmann

Institut für Kernchemie, Universitat Mainz, D-6500 Mainz, Federal Republic of Germany

D. Lee, K. J. Moody, K. E. Gregorich, R. B. Welch, and G. T. Seaborg

Nuclear Science Division, Lawrence Berkeley Laboratory, University of California, Berkeley, California 94720

D. C. Hoffman, W. R. Daniels, and M. M. Fowler

Isotope and Nuclear Chemistry Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545

H. R. von Gunten

Radiochemisches Laboratorium, Universitat Bern, CH-3000 Bern 9, Switzerland and Eidgenössisches Institut für Reaktorforschung, CH-5303 Würenlingen, Switzerland

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Vol. 33, Iss. 6 — June 1986

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