Cold binary fragmentation of even–even 238–248Pu isotopes

Santhosh, K. P.; Cyriac, Annu; Krishnan, Sreejith

doi:10.1007/s12648-018-1249-6

Cited by 3 publications

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References 54 publications

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“…In the present work, which is an extension of our earlier work [46], we have computed the penetrability and half-lives using the two different proximity potentials for the cold binary fission of 230-250 U isotopes, which were compared with the available experimental data collected from Holden et al [47]. We would like to mention that a similar study has been performed on even-even [244][245][246][247][248][249][250][251][252][253][254][255][256][257][258] Cf isotopes and even-even [238][239][240][241][242][243][244][245][246][247][248] Pu isotopes by Santhosh et al [48,49], where the cold reaction valleys were plotted, and the corresponding barrier penetrability and yields were calculated for all binary fragmentations of the above-mentioned isotopes.…”

Section: Introductionmentioning

confidence: 99%

Studies on the cold binary fragmentation of even–even 230–250U isotopes

Santhosh

Cyriac

2019

Comptes Rendus. Physique

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Radioactivité des particules lourdes Fission spontané Fission froide binaireWithin the framework of the Coulomb and proximity potential model (CPPM), we studied the cold binary fission of even-even 230-250 U isotopes using the two versions of the nuclear proximity potential, Proximity 1977 and Proximity 2000. The most favorable binary fission path is the one that has a high Q value and a minimum driving potential with respect to the mass and charge asymmetries. A nucleus with doubly-closed shell or near doublyclosed shell always appears as the heaviest nucleus in the favored channel of the binary fission of all the mentioned isotopes. For the 230,232,234 U isotopes, the highest yield was predicted for the isotope of Pb (Z = 82) as one fragment, whereas for the 236 U isotope, fragmentation with the isotope of Hg (Z = 80) as one fragment possesses the highest yield. For the 238 U isotope, fragmentation with the isotope of Pt (Z = 78, N = 126) as one fragment possesses the highest yield. In the case of the 240,242,244,246,248,250 U isotopes, the highest yield is for the fragmentation with Sn (Z = 50) as one fragment. It was found that asymmetric splitting is superior for U isotopes with mass number A ≤ 238 and symmetric splitting is superior for U isotopes with A ≥ 240. The computed penetrability and half-lives using the two different proximity potentials for the cold binary fission of 230-250 U isotopes were compared with the available experimental data collected from Holden et al. [Pure Appl. Chem. 72 (2000) 1525]. The two results were found to be in agreement with each other.

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Section: Introductionmentioning

confidence: 99%

Studies on the cold binary fragmentation of even–even 230–250U isotopes

Santhosh

Cyriac

2019

Comptes Rendus. Physique

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Quaternary fission in Cf244–254 isotopes with two α particles as middle fragments

Santhosh

Cyriac

2020

Phys. Rev. C

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The competition between α-decay and spontaneous fission for even–even isotopes of superheavy nuclei in the range 106≤Z≤124

Pahlavani,

Ahmadvand

2023

Mod. Phys. Lett. A

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The [Formula: see text]-decay and spontaneous fission (SF) half-lives for even–even isotopes of superheavy nuclei in the range [Formula: see text] are predicted using nuclear double-folding and Coulomb potentials. The [Formula: see text]-decay half-lives are computed based on WKB approximation for tunneling probability through potential barrier. The half-lives of SF have also been calculated using a semi-empirical relation constructed by Santhosh et al. [Nucl. Phys. A 832, 220 (2009)]. Our calculated half-lives of cold SF and [Formula: see text]-decay are compared with the available experimental data. This comparison indicates that our obtained half-lives are in good agreement with the available experimental data. The competition between [Formula: see text]-decay and SF is also analyzed in detail and the decay modes are predicted for the unknown cases. Variation of [Formula: see text]-decay and SF half-lives with mass number of the parent isotopes for each nucleus revealed the major role played with shell effect.

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Cold binary fragmentation of even–even 238–248Pu isotopes

Cited by 3 publications

References 54 publications

Studies on the cold binary fragmentation of even–even 230–250U isotopes

Studies on the cold binary fragmentation of even–even 230–250U isotopes

Quaternary fission in Cf244–254 isotopes with two α particles as middle fragments

The competition between α-decay and spontaneous fission for even–even isotopes of superheavy nuclei in the range 106≤Z≤124

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