Abstract
Charge distributions of fragments from low energy nuclear fission are investigated in reactions of highly fissile238U projectiles at relativistic energies (750 A·MeV) with a heavy (Pb) and a light (Be) target. The fully stripped fission fragments are separated by the Fragment Separator (FRS). Their high kinetic energies in the laboratory system allow the identification of all atomic numbers by using Multiple-Sampling Ionization Chambers (MUSIC). The elemental distributions of fragments observed at larger magnetic rigidities than the238U projectiles show asymmetric break-up and odd-even effects. They indicate a low energy fission process, induced mainly by dissociation in the electro-magnetic field for the U/Pb-system, or by peripheral nuclear interactions for the U/Be-system.
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Bertulani, C.A., Baur, G.: Nucl. Phys. A442, 739 (1985)
Greiner, D.E., Crawford, H., Lindstrom, P.J., Kidd, J.M., Olson, D.L., Schimmerling, W., Symmons, T.J.M.: Phys. Rev. C32, 416 (1985)
Justice, M.L., Blumenfeld, Y., Colonna, N., Delis, D.N., Guarino, G., Hanold, K., Meng, J.C., Peaslee, G.F., Wozniak, G.J. and Moretto, L.G., Phys. Rev. C 49, R5 (1994)
Aumann, T., Sümmerer, K., Geissel, H., Blank, B., Brohm, T., Clerc, H.-G., Czajkowski, S., Donzaud, C., Grewe, A., Hanelt, E., Heinz, A., Irnich, H., de Jong, M., Junghans, A., Magel, A., Münzenberg, G., Nickel, F., Pfützner, M., Piechaczek, A., Röhl, C., Scheidenberger, C., Schmidt, K.-H., Schwab, W., Steinhäuser, S., Trinder, W. and Voss, B.: GSI preprint GSI-95-19 (1995), to be published in Z. Phys. A
Bertulani, C.A., Nathan, A.M.: Nucl. Phys A554, 158 (1993)
Klapisch, R.: Annual Review of Nuclear Science 19, 33 (1969)
Äystö, J., Jauho, P., Janas, Z., Jokinen, A., Parmonen, J.M., Penttilä, H., Taskinen, P., Béraud, R., Duffait, R., Ensallem, A., Meyer, J., Meyer, M., Redon, N., Leino, M.E., Eskola, K., Dendooven, D.: Nucl. Phys. A515, 365 (1990)
Kratz, K.L., Gabelmann, H., Hillebrandt, W., Pfeiffer, B., Schlösser, K., Thielemann, F.-K.: Z. Phys. A325, 489 (1986)
Benesh, C.J., Cook, B.C. and Vary, J.P.: Phys. Rev. C40, 1198 (1989)
Hesse, M., Bernas, M., Armbruster, P., Aumann, T., Czajkowski, S., Dessagne, Ph., Donzaud, C., Geissel, H., Heinz, A., Kozhuharov, Ch., Miehe, Ch., Münzenberg, G., Röhl, C., Schmidt, K.-H., Schwab, W., Stéphan, C., Sümmerer, K., Tassan-Got, L.: in this issue of Z. Phys. A
Geissel, H., Armbruster, P., Behr, K.H., Brünle, A., Burkard, K., Chen, M., Folger, H., Fanczak, B., Keller, H., Klepper, O., Langenbeck, B., Nickel, F., Pfeng, E., Pfützner, M., Roeckl, E., Rykaczewski, K., Schall, I., Schardt, D., Scheidenberger, C., Schmidt, K.-H., Schröter, A., Schwab, T., Sümmerer, K., Weber, M., Münzenberg, G., Brohm, T., Clerc, H.G., Fauerbach, M., Gaimard, J.J., Grewe, A., Hanelt, E., Knödler, B., Steiner, M., Voss, B., Weckenmann, J., Ziegler, C., Magel, A., Wollnik, H., Dufour, J.P.: Nucl. Instr. Meth. B70, 286 (1992)
Friese, J., Körner, H.-J., Reinhold, J., Schneider, R., Trieb, H., Zeitelhack, K., Blank, B., Brohm, T., Fujita, Y., Geissel, H., König, W., Münzenberg, G., Nickel, F., Pfützner, M., Rykaczewski, K., Schall, I., Schardt, D., Schröter, A., Steiner, M., Sümmerer, K., Voss, B., Weckenmann, J.: Nucl. Phys. A553, 753 (1993)
Schmidt K.-H., Sümmerer, K., Geissel, H., Münzenberg, G., Nickel, F., Pfützner, M., Weber, M., Voss, B., Brohm, T., Clerc, H.-G., Fauerbach, M., Gaimard, J.-J., Grewe, A., Hanelt, E., Steiner, M., Weckenmann, J., Ziegler, C., Magel, A.: Nucl. Phys. A542, 699 (1992)
Bernas, M., Czajkowski, S., Armbruster, P., Geissel, H., Dessagne, Ph., Donzaud, C., Faust, H.R., Hanelt, E., Heinz, A., Hesse, M., Kozhuharov, C., Miehe, Ch., Münzenberg, G., Pfützner, M., Röhl, C., Schmidt, K.-H., Schwab, W., Stephan, C., Sümmerer, K., Tassan-Got, L., Voss, B.: Phys. Lett. B331, 19 (1994)
Schwab Th.: GSI-Rep. 91-10 (1991)
Pfützner, M., Geissel, H., Münzenberg, G., Nickel, F., Scheidenberger, C., Schmidt, K.-H., Sümmerer, K., Brohm, T., Voss, B., Bichsel, H.: Nucl. Inst. and Methods B86, 213 (1994)
Voss, B.: GSI Rep. 89-1 283 (1989)
Lang, W., Clerc, H.G., Wohlfarth, H., Schrader, H., Schmidt, K.-H.: Nucl. Phys. A345 34 (1980)
Sida, J.L., Armbruster, P., Bernas, M., Bocquet, J.P., Brissot, R., Faust, H.R.: Nucl. Phys. A502, 233 (1989)
Belhafaf, F.D., Bocquet, J.P., Brissot, R., Ristori, R., Crançon, Ch., Nifenecker, H., Mougey, J., Ramamurthy, V.S.: Z. Phys. A309, 253 (1983)
Polikanov, S., Brüchle, W., Folger, H., Jäger, E., Krogulski, T., Schädel, M., Schimpf, E., Wirth, E., Aumann, T., Kratz, J.V., Stiel, E, Trautmann, N.: Z. Phys. A 350, 221 (1994)
Caldwell, J.T., Dowdy, E.J., Alvarez, R.A., Berman, B.L., Meyer, P.: Nucl. Sci. Eng. 73, 153 (1980)
DeFrenne, D., Thierens, H., Proot, B., Jakobs, E., de Gelder, P., de-Clercq, A.: Phys. Rev. C261, 1356 (1982)
Ziegler, C., Brohm, T., Clerc, H.G., Geissel, H., Schmidt, K.-H., Sümmerer, K., Vieira, D.J., Voss, B.: GSI-Rep. 90-1 (199) 257; Voss, B., Dissertation TH Darmstadt, 1995
Scheidenberger, Ch.: Diss. Univ. Gießen 1994
Wahl, A.C.: Atomic Data and Nucl. Data Tables 39, 1 (1988)
Vandenbosch, R. and Huizenga, J.: Nucl. Fission, Acad. Press, New York, 1973
Jauho, P.P., Jokinen, A., Leino, M., Parmonen, J.M., Penttilä, H., Äystö, J., Eskola, K., Rubchenya, V.A.: Phys. Rev. C49, 2036 (1994)
Wilke, W., Kneissl, U., Weber, Th., Ströher, H., Cardman, L.S., Debevec, P.T., Hoblit, S.D., Jones, R.T., Nathan, A.M.: Phys. Rev. C42, 2148 (1990)
Gaimard J.J., Schmidt K.-H.: Nucl. Phys. A531, 709 (1991)
Schmidt-Ott, W., Ashai, K., Fujita, Y., Geissel, H., Groß, K.-D., Hild, T., Irnich, H., Ishihara, M., Krumbholz, K., Kunze, V., Magel, A., Meissner, F., Muto, K., Nickel, F., Okumo, H., Pfützner, M., Scheidenberger, C., Suzuki, K., Weber, M., Wennemann, C.: Z. Phys. A350, 215 (1994)
Schmidt, K.-H., Brohm, T., Clerc, H.-G., Dornik, M., Fauerbach, M., Geissel, H., Grewe, A., Hanelt, E., Junghans, A., Magel, A., Morawek, W., Münzenberg, G., Nickel, F., Pfützner, M., Scheidenberger, C., Sümmerer, K., Vieira, D., Voss, B., Ziegler, C.: Phys. Lett. B300, 313 (1993)
Olson, D.L., Berman, B.L., Greiner, D.E., Heckmann, H.H., Lindstrom, P.J. and Crawford, H.J.: Phys. Rev. C28, 1602 (1983)
Rubehn, T., Müller, W.F.J., Bassini, R., Begemann-Blaich, M., Blaich, Th., Ferrero, A., Groß, C., Imme, G., Iori, I., Kunde, G.J., Kunze, W.D., Lindenstruth, V., Lynen, U., Moroni, A., Möhlenkamp, T., Moretto, L.G., Ocker, B., Pochodzalla, J., Raciti, G., Sann, H., Schüttauf, Seidel, W., Serfling, V., Trautmann, W., Trzcinski, A., Verde, A., Wörner, A., Zude, E., Zwieglinski, B.: submitted to Z. Phys. A
Pommé, S., Jakobs, E., Persyn, K., de Frenne, D., Govaert, K., Yoneama, M.L.: Nucl. Phys. A560, 689 (1993)
Gindler, J.E., Glendenin, L.E., Henderson, D.J., Meadows, J.W.: Phys. Rev. C27, 2058 (1983)
Glendenin, L.E., Gindler, J.E., Ahmad, J., Henderson, D.J., Meadows, J.W.: Phys. Rev. C22, 152 (1980)
Nagy, S., Flynn, K., Gindler, J.E., Meadows, J.W., Glendenin L.E.: Phys. Rev. C17, 163 (1978)
Caldwell, J.T., Dowdy, E.J., Berman, B.L., Alvarez, R.A. and Meyer, P.: Phys. Rev. C21, 1215 (1980)
Brosa, U., Großmann, S., Müller, A.: Phys. Rep. 197, 167 (1990)
Siegler, P., Dissertation, TH Darmstadt, 1994
Weber, Th., Heil, R.D., Kneissl, U., Wilke, W., Emrich, H.J., Kihm, Th., Knöpfle, K.T.: Phys. Rev. Lett. 62, 62 (1989)
Emling, H.: Progr. Part. Nucl. Phys. Vol.3 (1994)
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Armbruster, P., Bernas, M., Czajkowski, S. et al. Low-energy fission investigated in reactions of 750 AMeV238U-ions with Pb and Be targets. Z. Physik A — Hadrons and Nuclei 355, 191–201 (1996). https://doi.org/10.1007/BF02769684
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DOI: https://doi.org/10.1007/BF02769684