Prompt Neutron Emission in the Neutron-Induced Fission of 239Pu and 235U

2005 ◽  
Author(s):  
O. A. Batenkov
Keyword(s):  
Neutron Emission ◽  
Prompt Neutron ◽  
Induced Fission

scholarly journals Prompt neutron emission in the neutron-induced fission of 239Pu and the spontaneous fission of 252Cf: an unfolding story

2018 ◽  
Author(s):  
C. Y. Wu ◽  
J. Henderson ◽  
R. A. Henderson ◽  
M. Devlin ◽  
K. J. Kelly ◽  
...  
Keyword(s):  
Spontaneous Fission ◽  
Neutron Emission ◽  
Prompt Neutron ◽  
Induced Fission

Prompt neutron emission spectra and multiplicities in the thermal neutron induced fission of235U

Pramana ◽  
1993 ◽  
Vol 40 (4) ◽  
pp. 299-309 ◽  
Author(s):  
M S Samant ◽  
R P Anand ◽  
R K Choudhury ◽  
S S Kapoor ◽  
K Kumar ◽  
...  
Keyword(s):  
Thermal Neutron ◽  
Neutron Emission ◽  
Emission Spectra ◽  
Prompt Neutron ◽  
Neutron Emission Spectra ◽  
Fission Of235u ◽  
Induced Fission

Pre-saddle and pre-scission neutron emission rates in heavy-ion induced fission of 16O +208Pb and 16O +209Bi systems

2019 ◽  
Vol 28 (03) ◽  
pp. 1950013
Author(s):  
Saeed Soheyli ◽  
Morteza Khalil Khalili ◽  
Ghazaaleh Ashrafi
Keyword(s):  
Emission Rate ◽  
Neutron Emission ◽  
Nonlinear Behavior ◽  
Heavy Ion ◽  
Neutron Multiplicity ◽  
Emission Rates ◽  
Reaction Systems ◽  
Initial Excitation ◽  
Induced Fission ◽  
First Time

Whereas there is a slight information on the pre-saddle neutron emission rate and neutron multiplicity, as well as it is impossible to separate the pre-saddle and saddle to scission neutron contributions experimentally, the theoretical studies of pre-saddle neutron emission rate and neutron multiplicity are of great importance. In the present work, the calculations of pre-saddle neutron multiplicity are performed using the analysis of fission fragment angular anisotropy data for [Formula: see text] and [Formula: see text] reaction systems. The obtained results show that the pre-saddle neutron multiplicity decreases by increasing the initial excitation energy and it has found to be characterized by a nonlinear behavior. Through the analysis of pre-saddle neutron multiplicity and pre-saddle transition time by means of the neutron clock method, the pre-saddle neutron emission rate is calculated for the first time. The findings of this study show that the pre-scission neutron emission rate is lower than the pre-saddle neutron emission rate.

scholarly journals Prompt Fission Neutron Investigation in 235U(nth,f) and 252Cf(sf) Reactions

2019 ◽  
Vol 211 ◽  
pp. 04003 ◽  
Author(s):  
Shakir Zeynalov ◽  
Pavel Sedyshev ◽  
Valery Shvetsov ◽  
Olga Sidorova
Keyword(s):  
Kinetic Energy ◽  
Fission Fragment ◽  
Ionization Chamber ◽  
Neutron Emission ◽  
Digital Signal ◽  
Fission Neutron ◽  
Sampling Frequency ◽  
Prompt Neutron ◽  
Prompt Fission ◽  
Prompt Fission Neutron

The prompt neutron emission in thermal neutron induced fission of 235U and spontaneous fission of 252Cf was investigated by using digital signal electronics. The goal was to check a new revised data analysis software with fission fragment (FF) kinetic energy corrections after prompt fission neutron (PFN) emission. The revised software was used to reanalyze old data measured in EC-JRC-IRMM, where 252Cf(sf) reaction was investigated. Both measurements were done using similar twin Frisch grid ionization chamber for fission fragment detection with equivalent NE213 fast neutron detector. About 0.5*106 FF with PFN coincidences have been analyzed in both measurements. The fission fragment kinetic energy, mass and angular distribution were investigated along with prompt neutron time of flight and pulse shape analysis using a six channel synchronous waveform digitizer (WFD) with sampling frequency of 250 MHz and 12 bit resolution in the 235U(nth,f) reaction. Similar WFD with sampling frequency of 100 MHz was used for PFN investigation in 252Cf(sf) reaction. These two experiments were considered as a reference for further investigations with a new setup composed of position sensitive ionization chamber to detect FF and an array of 32 liquid scintillators recently constructed in Dubna to detect neutrons.

Neutron Emission inRa226Proton-Induced Fission

1966 ◽  
Vol 16 (22) ◽  
pp. 1008-1011 ◽  
Author(s):  
H. W. Schmitt ◽  
E. Konecny
Keyword(s):  
Neutron Emission ◽  
Induced Fission

Search for P-odd asymmetry of prompt neutron emission in 235U fission induced by cold polarized neutrons

JETP Letters ◽  
2004 ◽  
Vol 80 (11) ◽  
pp. 675-677
Author(s):  
E. V. Brakhman ◽  
G. V. Danilyan ◽  
A. V. Fedorov ◽  
I. L. Karpikhin ◽  
V. A. Krakhotin ◽  
...  
Keyword(s):  
Neutron Emission ◽  
Prompt Neutron ◽  
Polarized Neutrons ◽  
235U Fission
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