Elsevier

Nuclear Physics A

Volume 282, Issue 1, 16 May 1977, Pages 109-124
Nuclear Physics A

Distributions isotopiques des gaz rares et de leurs précurseurs dans la fission thermique de 239, 241Pu: Etude de l'effet “pair-impair”

https://doi.org/10.1016/0375-9474(77)90174-9Get rights and content

Abstract

The independent and cumulative fission yields of rare gas and halogen isotopes produced from the fission of 239Pu and 241Pu by thermal neutrons have been measured by means of on-line isotopic separation. Mass and charge distributions have been studied. Elemental yields can be deduced for the two fissioning systems. A comparison with 233U and 235U fission is made for the proton odd-even effect.

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Cited by (30)

  • Charge distribution of light mass fission products in the fast neutron induced fission of <sup>232</sup>Th, <sup>238</sup>U, <sup>240</sup>Pu and <sup>244</sup>Cm

    2017, Applied Radiation and Isotopes
    Citation Excerpt :

    The charge distribution studies in the neutron induced fission of actinides have been carried out by using different physical (Reisdorf et al., 1971; Cheifetz et al., 1971; Brissot et al., 1975, 1977; Balestrini et al., 1979; Shmid et al., 1981; Mariolopoulos et al., 1981; Djebara et al., 1984, 1989; Datta et al., 1988; Siegert et al., 1976; Clerc et al., 1975; Lang et al., 1980; Bocquet et al., 1980; Schmitt et al., 1984; Quade et al., 1988; Rochman et al., 2002; Boucheneb et al., 1989, 1991; Schillebeeckx et al., 1994; Medkour et al., 1997) and radiochemical technique (Wahl et al., 1969; Notea, 1969; Balestrini and Forman, 1974; Wolfsberg, 1975; Amiel and Feldstein, 1975; Amiel et al., 1977; Izak-Biran and Amiel, 1977, 1978; Gäggeler and von Gunten, 1978; Erten and Aras, 1979; Wahl, 1980, 1988; Dickens and McConnell, 1981a, 1981b, 1983; Erten et al., 1982; Meixler et al., 1983; Dobreva and Nenoff, 1984; Haddad et al., 1987, 1988, 1989; Srivastava and Denschlag, 1989; Hentzschel and Denschlag, 1990; Naik et al., 1997, 1998, 2003, 2004). Except few (Reisdorf et al., 1971; Cheifetz et al., 1971; Brissot et al., 1975, 1977; Balestrini et al., 1979; Shmid et al., 1981), rest of the physical techniques (Mariolopoulos et al., 1981; Djebara et al., 1984, 1989; Datta et al., 1988; Siegert et al., 1976; Clerc et al., 1975; Lang et al., 1980; Bocquet et al., 1980; Schmitt et al., 1984; Quade et al., 1988; Rochman et al., 2002; Boucheneb et al., 1989, 1991; Schillebeeckx et al., 1994; Medkour et al., 1997) are used only for light mass fission products, in the thermal neutron induced fission of 229Th to 249Cf and in the spontaneous fission of 252Cf. On the other hand, radiochemical separation in combination with γ-ray spectrometric technique (Wahl et al., 1969; Notea, 1969; Balestrini and Forman, 1974; Wolfsberg, 1975; Amiel and Feldstein, 1975; Amiel et al., 1977; Izak-Biran and Amiel, 1977, 1978; Gäggeler and von Gunten, 1978; Erten and Aras, 1979; Wahl, 1980, 1988; Dickens and McConnell, 1981a, 1981b, 1983; Erten et al., 1982; Meixler et al., 1983; Dobreva and Nenoff, 1984; Haddad et al., 1987, 1988, 1989; Srivastava and Denschlag, 1989; Hentzschel and Denschlag, 1990; Naik et al., 1997, 1998, 2003, 2004) is used for both light and heavy mass fission products in the thermal neutron induced fission of 229Th to 249Cf and in the spontaneous fission of 252Cf.

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Ce travail couvre une part de la thèse de Doctorat ès Sciences Physiques de R. Brissot, à l'Université Scientifique et Médicale de Grenoble, inscrite sous le n° A0 11621 au Centre National de la Recherche Scientifique.

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