Isotopic distributions of thermal-neutron-induced fission fragments of near-symmetric fission of Pu239,241 determined using calorimetric low-temperature detectors

2021 ◽  
Vol 104 (3) ◽  
Author(s):  
Santwana Dubey ◽  
Artur Echler ◽  
Peter Egelhof ◽  
Patrick Grabitz ◽  
Werner Lauterfeld ◽  
...  
Keyword(s):  
Low Temperature ◽  
Thermal Neutron ◽  
Low Temperature Detectors ◽  
Fission Fragments ◽  
Induced Fission ◽  
Symmetric Fission

scholarly journals Precise Rb92 and Y96 yields for thermal-neutron-induced fission of U235 and Pu239,241 determined using calorimetric low-temperature detectors

2020 ◽  
Vol 102 (4) ◽  
Author(s):  
Santwana Dubey ◽  
Artur Echler ◽  
Peter Egelhof ◽  
Patrick Grabitz ◽  
Werner Lauterfeld ◽  
...  
Keyword(s):  
Low Temperature ◽  
Thermal Neutron ◽  
Low Temperature Detectors ◽  
Induced Fission

scholarly journals Experimental estimation of the “scission” neutron yield in the thermal neutron induced fission of 233U and 235U

2020 ◽  
Vol 239 ◽  
pp. 05008
Author(s):  
Alexander Vorobyev ◽  
Oleg Shcherbakov ◽  
Alexei Gagarski ◽  
Gennadi’ski Val ◽  
Tatiana’mina Kuz
Keyword(s):  
Thermal Neutron ◽  
Neutron Yield ◽  
Research Reactor ◽  
Center Of Mass ◽  
Energy Distributions ◽  
Mass System ◽  
Fission Fragments ◽  
Experimental Estimation ◽  
Fission Neutrons ◽  
Induced Fission

The analysis of angular and energy distributions of prompt neutrons from the thermal neutron induced fission of 233U and 235U measured recently in the WWR-M research reactor (Gatchina, Russia) have been performed. The yield of “scission” neutrons has been estimated by comparing the measured distributions with calculations within the model of emission of neutrons from completely accelerated fragments. Besides taking into account “scission” neutrons, for the best description of measured angular and energy distributions of fission neutrons, the calculation should be performed under the assumption that neutrons with a higher (7-9%) probability are emitted along the fission axis in the center-of-mass system of fission fragments.

INDEPENDENT YIELDS OF 124Sb AND 126sb IN THERMAL NEUTRON INDUCED FISSION AND THEIR IMPLICATION ON THE EMPIRICAL Zp FUNCTION

1965 ◽  
Vol 43 (9) ◽  
pp. 2493-2507 ◽  
Author(s):  
P. O. Strom ◽  
G. R. Grant ◽  
A. C. Pappas
Keyword(s):  
Thermal Neutron ◽  
Charge Distribution ◽  
Distribution Curve ◽  
Neutron Emission ◽  
Shell Effect ◽  
Shell Effects ◽  
Fission Fragments ◽  
Induced Fission ◽  
Fission Yields ◽  
Proton Shell

The independent fission yields in thermal neutron induced fission of 235U have been measured to be (9.5 ± 1.4)•10−6% and (1.04 ± 0.17)•10−3% for 124gSb and 126gSb, respectively. The total independent yields for all isomers of these nuclides are estimated to be (1.2 ± 0.2)•10−5% for 124Sb and (3.7 ± 0.6)•10−3% for 126Sb using a Huizenga–Vandenbosch approach for estimating population of isomeric states.These data do not seem to support a 50 proton shell effect on the Zp function, using the "unique" charge distribution curve of Wahl. A revised Wahl plot based on recent information on neutron emission from individual fission fragments is given and discussed in view of shell effects in fission. It is shown that the effect of the Zp function of the 50 proton shell is very small.

Nuclear charge distribution of heavy fission fragments from thermal-neutron-induced fission of235U

1970 ◽  
Vol 231 (1) ◽  
pp. 59-97 ◽  
Author(s):  
Ewald Konecny ◽  
Helmut Gunther ◽  
Helmut Rösler ◽  
Günter Siegert ◽  
Heinz Ewald
Keyword(s):  
Thermal Neutron ◽  
Charge Distribution ◽  
Nuclear Charge ◽  
Fission Fragments ◽  
Nuclear Charge Distribution ◽  
Fission Of235u ◽  
Induced Fission

Application of Calorimetric Low-Temperature Detectors for the Investigation of Z-Yield Distributions of Fission Fragments

2018 ◽  
Vol 193 (5-6) ◽  
pp. 1257-1262 ◽  
Author(s):  
Santwana Dubey ◽  
Artur Echler ◽  
Peter Egelhof ◽  
Patrick Grabitz ◽  
Manfred Mutterer ◽  
...  
Keyword(s):  
Low Temperature ◽  
Low Temperature Detectors ◽  
Fission Fragments
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