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|Title:||Prompt Fission Neutron Spectrum Evaluation for 252Cf (SF) in the Frame of the Multi-Modal Fission Model|
|Authors:||HAMBSCH FRANZ-JOSEF; OBERSTEDT STEPHAN; VLADUCA Gheorghita; TUDORA Anabella|
|Citation:||ANNALS OF NUCLEAR ENERGY vol. 32 p. 1032-1046|
|Type:||Articles in periodicals and books|
|Abstract:||In the present work an attempt to improve the evaluation of the prompt fission neutron spectrum of 252Cf (SF) is made. The multi-modal fission concept is included into the Los Alamos model. A more generalized form of the fission fragment residual nuclear temperature distribution and a possible anisotropy effect of the prompt neutron emission in the center-of-mass system are taken into account, too. The multi-modal fission parameters entering the prompt fission neutron spectrum model are determined on the basis of the experimental data concerning the fission frament total kinetic energy TKE(A) and mass distribution Y(A) measured at IRMM. The calculated prompt neutron spectrum is obtained in better agreement with the standard point-wise evaluation of Mannhart and compared to other evaluations made with different models.|
|JRC Institute:||Health, Consumers and Reference Materials|
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