Superasymmetric fission of heavy nuclei induced by intermediate-energy protons

被引：16

作者：

Deppman, A. ^{[1
]}

Andrade-, E., II ^{[1
]}

Guimaraes, V. ^{[1
]}

Karapetyan, G. S. ^{[1
]}

Tavares, O. A. P. ^{[2
]}

Balabekyan, A. R. ^{[3
]}

Demekhina, N. A. ^{[4
,5
]}

Adam, J. ^{[5
]}

Garcia, F. ^{[6
]}

Katovsky, K. ^{[7
]}

机构：

[1] Univ Sao Paulo, Inst Fis, BR-05315970 Sao Paulo, Brazil

[2] Ctr Brasileiro Pesquisas Fis CBPF MCTI, BR-22290180 Rio De Janeiro, Brazil

[3] Yerevan State Univ, Fac Phys, Yerevan 0025, Armenia

[4] Yerevan Phys Inst, Yerevan 0036, Armenia

[5] Joint Inst Nucl Res, Flerov Lab Nucl React LNR, Moscow 141980, Russia

[6] Univ Estadual Santa Cruz UESC, Ctr PEsquisas Ciencia & Tecnol Radiacoes CPqCTR, Dept Ciencias Exatas & Tecnol DCET, Ilheus, BA, Brazil

[7] Czech Tech Univ, Dept Nucl Reactors, CR-16635 Prague, Czech Republic

来源：

PHYSICAL REVIEW C | 2013年 / 88卷 / 06期

基金：

巴西圣保罗研究基金会;

关键词：

CROSS-SECTION; INTRANUCLEAR CASCADE; CRISP PACKAGE; PHOTOFISSION; DISTRIBUTIONS; EVAPORATION; SPALLATION; FRAGMENTS; EMISSION; RANGE;

D O I：

10.1103/PhysRevC.88.064609

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

In this work we present the results for the investigation of intermediate-mass fragment (IMF) production with the proton-induced reaction at 660 MeV on U-238 and Np-237 target. The data were obtained with the LNR Phasotron U-400M Cyclotron at Joint Institute for Nuclear Research (JINR), Dubna, Russia. A total of 93 isotopes, in the mass range of 30 < A < 200, were unambiguously identified with high precision. The fragment production cross sections were obtained by means of the induced-activation method in an off-line analysis. Mass-yield distributions were derived from the data and compared with the results of the simulation code CRISP for multimodal fission. A discussion of the superasymmetric fragment production mechanism is also given.

引用

页数：7

共 50 条

[31] A detector for studying the characteristics of spontaneous fission of short-lived heavy nuclei [J].

Svirikhin, A. I. ;

Isaev, A. V. ;

Yeremin, A. V. ;

Kuznetsov, A. N. ;

Malyshev, O. N. ;

Popeko, A. G. ;

Sokol, E. A. ;

Chelnokov, M. L. ;

Chepigin, V. I. .

INSTRUMENTS AND EXPERIMENTAL TECHNIQUES, 2011, 54 (05) :644-648

[32] Study of different features of fission dynamics in heavy-ion-induced reactions [J].

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[34] Spallation with intermediate energy protons as source of long-lived isomers [J].

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[39] Light charged particles emitted in fission reactions induced by protons on 208Pb [J].

Rodriguez-Sanchez, J. L. ;

Benlliure, J. ;

Paradela, C. ;

Ayyad, Y. ;

Casarejos, E. ;

Alvarez-Pol, H. ;

Audouin, L. ;

Belier, G. ;

Boutoux, G. ;

Chatillon, A. ;

Cortina-Gil, D. ;

Gorbinet, T. ;

Heinz, A. ;

Kelic-Heil, A. ;

Laurent, B. ;

Martin, J. -F. ;

Pellereau, E. ;

Pietras, B. ;

Ramos, D. ;

Rodriguez-Tajes, C. ;

Rossi, D. M. ;

Simon, H. ;

Taieb, J. ;

Vargas, J. ;

Voss, B. .

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