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Aspects of charge distribution measurement for 252Cf(sf).
- Source :
-
Physical Review C . Sep2017, Vol. 96 Issue 3, p1-1. 1p. - Publication Year :
- 2017
-
Abstract
- Measurements of charge distributions of fragments in the spontaneous fission of 252Cf have been performed using a unique detector setup consisting of a typical grid-ionization chamber coupled with a ΔE-E charged particle telescope. We find that the fragment mass dependency of the kinetic-energy-averaged width of the charge distribution shows a systematically decreasing trend with obvious fluctuations. The variation of the widths of the charge distribution with kinetic energy shows a pan-like shape. This is due to the large number of neutrons emitted at the high excitation energies and cold fragmentation at the low excitation energies. Deviation of the kinetic-energy-averaged most probable charge Zp from the unchanged charge distribution (UCD), ΔZ, as a function of the mass number of primary fragments, A*, changes from negative for mass asymmetric fission to positive near the symmetric fissions. Concerning the kinetic energy dependence of Zp given primary mass number A*, obvious increasing tendencies of Zp with increasing kinetic energy are observed. [ABSTRACT FROM AUTHOR]
- Subjects :
- *CALIFORNIUM
*DETECTORS
*KINETIC energy
Subjects
Details
- Language :
- English
- ISSN :
- 24699985
- Volume :
- 96
- Issue :
- 3
- Database :
- Academic Search Index
- Journal :
- Physical Review C
- Publication Type :
- Academic Journal
- Accession number :
- 125892878
- Full Text :
- https://doi.org/10.1103/PhysRevC.96.034611