Monte Carlo simulation for fragment mass and kinetic energy distributions from the neutron-induced fission of235U
The mass and kinetic energy distribution of nuclear fragments from the thermal neutron-induced fission of 235U have been studied using a Monte Carlo simulation. Besides reproducing the pronounced broadening on the standard deviation of the final fragment kinetic energy distribution (σe <img src="../../../../../img/revistas/rmf/v53n5/a6s1.jpg">) around the mass number <img src="../../../../../img/revistas/rmf/v53n5/a6s2.jpg" > or = 109, our simulation also produces a second broadening around <img src="../../../../../img/revistas/rmf/v53n5/a6s2.jpg" > or = 125 that is in agreement with the experimental data obtained by Belhafaf et al. These results are a consequence of the characteristics of the neutron emission, the variation in the primary fragment mean kinetic energy, and the yield as a function of the mass.
| Main Authors: | , , |
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| Format: | Digital revista |
| Language: | English |
| Published: |
Sociedad Mexicana de Física
2007
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| Online Access: | http://www.scielo.org.mx/scielo.php?script=sci_arttext&pid=S0035-001X2007000500006 |
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| Summary: | The mass and kinetic energy distribution of nuclear fragments from the thermal neutron-induced fission of 235U have been studied using a Monte Carlo simulation. Besides reproducing the pronounced broadening on the standard deviation of the final fragment kinetic energy distribution (σe <img src="../../../../../img/revistas/rmf/v53n5/a6s1.jpg">) around the mass number <img src="../../../../../img/revistas/rmf/v53n5/a6s2.jpg" > or = 109, our simulation also produces a second broadening around <img src="../../../../../img/revistas/rmf/v53n5/a6s2.jpg" > or = 125 that is in agreement with the experimental data obtained by Belhafaf et al. These results are a consequence of the characteristics of the neutron emission, the variation in the primary fragment mean kinetic energy, and the yield as a function of the mass. |
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