Neutron Emission in Fission of 252Cf(sf)

The prompt neutron emission in spontaneous fission of 252Cf has been investigated applying digital signal electronics. The goal was to compare the results from digital data acquisition and digital signal processing analysis with results of the pioneering work of Budtz-Jørgensen and Knitter. Using a twin Frisch-grid ionization chamber for fission fragment (FF) detection and a NE213-equivalent neutron detector in total about 107 fission fragment-neutron coincidences have been registered. Fission fragment kinetic energy, mass and angular distribution, neutron time-of-flight and pulse shape have been investigated using a 12 bit waveform digitizer. The signal waveforms have been analyzed using digital signal processing algorithms. The results are in very good agreement with literature. For the first time the dependence of the number of emitted neutrons as a function of total kinetic energy (TKE) of the fragments is in very good agreement with theoretical calculations in the range of TKE from 140-220 MeV.

ZEYNALOV Sh.;  HAMBSCH Franz-Josef;  OBERSTEDT Stephan; 

2011-08-26

KOREAN PHYSICAL SOC

JRC58947

0374-4884,   

https://publications.jrc.ec.europa.eu/repository/handle/JRC58947,   

10.3938/jkps.59.1396,