Insight into excitation energy and structure effects in fission from isotopic information in fission yields

被引：25

作者：

Ramos, D. ^{[1
,3
]}

Caamano, M. ^{[1
]}

Farget, F. ^{[2
,5
]}

Rodriguez-Tajes, C. ^{[2
]}

Audouin, L. ^{[3
]}

Benlliure, J. ^{[1
]}

Casarejos, E. ^{[4
]}

Clement, E. ^{[2
]}

Cortina, D. ^{[1
]}

Delaune, O. ^{[2
,8
]}

Derkx, X. ^{[5
]}

Dijon, A. ^{[2
]}

Dore, D. ^{[6
]}

Fernandez-Dominguez, B. ^{[1
]}

de France, G. ^{[2
]}

Heinz, A. ^{[7
]}

Jacquot, B. ^{[2
]}

Paradela, C. ^{[1
,9
]}

Rejmund, M. ^{[2
]}

Roger, T. ^{[2
]}

Salsac, M-D ^{[6
]}

Schmitt, C. ^{[2
,10
]}

机构：

[1] Univ Santiago Compostela, E-15706 Santiago De Compostela, Spain

[2] CEA DSM CNRS IN2P3, GANIL, F-14076 Caen 5, France

[3] Univ Paris Sud, IPN Orsay, CNRS IN2P3, F-91406 Orsay, France

[4] Univ Vigo, E-36310 Vigo, Spain

[5] Univ Caen Basse Normandie, LPC Caen, ENSICAEN CNRS IN2P3, F-14050 Caen, France

[6] CEA Saclay, DMS IRFU SPhN, F-91191 Gif Sur Yvette, France

[7] Chalmers Univ Technol, SE-41296 Gothenburg, Sweden

[8] CEA DAM DIF, F-91297 Arpajon, France

[9] Inst Reference Mat & Measurements, EC JRC, Retieseweg 1111, B-2440 Geel, Belgium

[10] Univ Strasbourg, IPHC Strasbourg, CNRS IN2P3, F-67037 Strasbourg 2, France

来源：

PHYSICAL REVIEW C | 2019年 / 99卷 / 02期

关键词：

NEUTRON-INDUCED FISSION; NUCLEAR-CHARGE YIELDS; MASS DISTRIBUTIONS; PAIR-BREAKING; DEFORMATION; SCISSION; BEAMS; MODEL;

D O I：

10.1103/PhysRevC.99.024615

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：

The use of the inverse kinematics technique and a magnetic spectrometer permits the simultaneous measurement of proton and neutron content of full fission fragment distributions. This paper reports new measurements of five fissioning systems-U-238,Np-239 Pu-240, Cm-244, and Cf-250-produced in inelastic scattering, transfer, and fusion reactions at different excitation energies. As a result, isotopic, elemental, and isotonic fission yields are presented. The contribution of the different fission modes and the proton even-odd effect are studied. Structure effects are investigated by means of the neutron excess and the total neutron multiplicity as a function of the fragment atomic number.

引用

页数：11

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