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RISS 인기검색어
- 검색키워드
- 저자 : Sh. Zeynalov (검색결과 2 건)
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Neutron Emission in Fission of ^(252)Cf(SF)
Sh. Zeynalov,F.-J. Hambsch,S. Obertstedt 한국물리학회 2011 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.59 No.23
The prompt neutron emission in spontaneous fission of ^(252)Cf 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-Jorgensen and Knitter. Using a twin Frisch-grid ionization chamber for fission fragment (FF) detection and a NE213 equivalent neutron detector in total about 10^7 neutron detector 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.
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Investigation of the Fission Process at IRMM
F.-J. Hambsch,S. Oberstedt,A. Al-Adil,R. Borcea,A. Oberstedt,A. Tudora,Sh. Zeynalov 한국물리학회 2011 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.59 No.23
The investigation of the fission process is and has been a major undertaking at IRMM. The most recent investigations concerned the reaction ^(234)U(n, f) and ^(238)U(n, f) around vibrational resonances at the barrier of the fission cross-section. Furthermore prompt neutron emission of ^(252)Cf(SF) has been investigated understanding for the first time the prompt neutron multiplicity as a function of total kinetic energy (TKE). Theoretical modelling of reaction cross sections as well as prompt neutron multiplicity and spectra has been performed using the experimental data as input parameters. Also instrument developments for correlation measurements of fission fragment properties has been pursued in recent years with the time-of-flight spectrometer VERDI and detectors for prompt fission γ-ray.
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