Behavior of the average prompt neutron multiplicity as a function of post-neutron fragment mass in correlation with the pre-neutron fragment mass distribution in thermal neutron induced fission of 235U and 233U
A Monte Carlo simulation is performed in order to correlate the average prompt neutron multiplicity as a function of post- and pre-neutron fragment mass (n-(m) and ν-(A), respectively). This is applied for 235,233U(nth,f). The input of the simulation consists of quantities related to pre-neutron fra...
| Main Author: | |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2019-09-01
|
| Series: | Results in Physics |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2211379718334090 |
| _version_ | 1818484212957708288 |
|---|---|
| author | M. Montoya |
| author_facet | M. Montoya |
| author_sort | M. Montoya |
| collection | DOAJ |
| description | A Monte Carlo simulation is performed in order to correlate the average prompt neutron multiplicity as a function of post- and pre-neutron fragment mass (n-(m) and ν-(A), respectively). This is applied for 235,233U(nth,f). The input of the simulation consists of quantities related to pre-neutron fragments, i.e. the mass yield Y(A), the average kinetic energy E-(A), its standard deviation σE(A) and a function ν-s(A) (composed by three jointed segments) which approximates the sawtooth shape of the experimental prompt neutron multiplicity ν-(A). The ratio of neighboring mass yields RA=Y(A+1)/Y(A) is introduced. It is found that n- < ν-s (n- > ν-s) approximately in the same ranges of A where R<1(R>1). The average prompt neutron multiplicity as a function of fragment mass N-μ measured by using the 2E method is also simulated. Its behaviour is similar to the one mentioned above. Keywords: Thermal fission, Uranium 235, Uranium 233, Neutron emission, Fragment distribution |
| first_indexed | 2024-12-10T15:52:08Z |
| format | Article |
| id | doaj.art-0f9b107b18ad46708e5eb89ae7d80216 |
| institution | Directory Open Access Journal |
| issn | 2211-3797 |
| language | English |
| last_indexed | 2024-12-10T15:52:08Z |
| publishDate | 2019-09-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Results in Physics |
| spelling | doaj.art-0f9b107b18ad46708e5eb89ae7d802162022-12-22T01:42:45ZengElsevierResults in Physics2211-37972019-09-0114Behavior of the average prompt neutron multiplicity as a function of post-neutron fragment mass in correlation with the pre-neutron fragment mass distribution in thermal neutron induced fission of 235U and 233UM. Montoya0Universidad Nacional de Ingeniería, Av. Túpac Amaru 210, Rímac, Lima, PeruA Monte Carlo simulation is performed in order to correlate the average prompt neutron multiplicity as a function of post- and pre-neutron fragment mass (n-(m) and ν-(A), respectively). This is applied for 235,233U(nth,f). The input of the simulation consists of quantities related to pre-neutron fragments, i.e. the mass yield Y(A), the average kinetic energy E-(A), its standard deviation σE(A) and a function ν-s(A) (composed by three jointed segments) which approximates the sawtooth shape of the experimental prompt neutron multiplicity ν-(A). The ratio of neighboring mass yields RA=Y(A+1)/Y(A) is introduced. It is found that n- < ν-s (n- > ν-s) approximately in the same ranges of A where R<1(R>1). The average prompt neutron multiplicity as a function of fragment mass N-μ measured by using the 2E method is also simulated. Its behaviour is similar to the one mentioned above. Keywords: Thermal fission, Uranium 235, Uranium 233, Neutron emission, Fragment distributionhttp://www.sciencedirect.com/science/article/pii/S2211379718334090 |
| spellingShingle | M. Montoya Behavior of the average prompt neutron multiplicity as a function of post-neutron fragment mass in correlation with the pre-neutron fragment mass distribution in thermal neutron induced fission of 235U and 233U Results in Physics |
| title | Behavior of the average prompt neutron multiplicity as a function of post-neutron fragment mass in correlation with the pre-neutron fragment mass distribution in thermal neutron induced fission of 235U and 233U |
| title_full | Behavior of the average prompt neutron multiplicity as a function of post-neutron fragment mass in correlation with the pre-neutron fragment mass distribution in thermal neutron induced fission of 235U and 233U |
| title_fullStr | Behavior of the average prompt neutron multiplicity as a function of post-neutron fragment mass in correlation with the pre-neutron fragment mass distribution in thermal neutron induced fission of 235U and 233U |
| title_full_unstemmed | Behavior of the average prompt neutron multiplicity as a function of post-neutron fragment mass in correlation with the pre-neutron fragment mass distribution in thermal neutron induced fission of 235U and 233U |
| title_short | Behavior of the average prompt neutron multiplicity as a function of post-neutron fragment mass in correlation with the pre-neutron fragment mass distribution in thermal neutron induced fission of 235U and 233U |
| title_sort | behavior of the average prompt neutron multiplicity as a function of post neutron fragment mass in correlation with the pre neutron fragment mass distribution in thermal neutron induced fission of 235u and 233u |
| url | http://www.sciencedirect.com/science/article/pii/S2211379718334090 |
| work_keys_str_mv | AT mmontoya behavioroftheaveragepromptneutronmultiplicityasafunctionofpostneutronfragmentmassincorrelationwiththepreneutronfragmentmassdistributioninthermalneutroninducedfissionof235uand233u |