Abstract
In continuation of our work on investigation of the neutron-deficient plutonium isotopes [1] we carried out the experiments aimed to produce new isotopes228,229Pu. The isotope228Pu has been produced in the bombardment of the208Pb target with a beam of24Mg and the isotope229Pu — in the reactions of207,208Pb targets with26Mg projectiles. The isotopes were identified after in-flight separation from the beam and target-like particles by the VASSILISSA electrostatic separator [2] and implantation into silicon strip detectors. The assignment of unknown α-decays was made by establishing their genetic position and time correlations with those belonging to known α-decay chains. The α-decay energies of228,229Pu were measured to be (7810±20) keV and (7460±30) keV, respectively.
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References
A.N. Andreyev et al., Z.Phys.,A337, (1990), p.231
A.V. Yeremin et al., Nucl.Instr. & Meth.,A274, (1989), p.528
W. Westmeier and A. Merklin, Catalog of Alpha Particles from Radioactive Decay, Karlsruhe, 1985, Nr.29-1.
M.S. Ivascu and D.N. Poenaru, Fission Approach to the Alpha Decay, in Particle Emission From Nuclei, vol.2, D.N. Poenaru and Ivascu M. Eds., CRC Press, Boca Raton, Flo., 1989, p.93–125
Y. Hatsukawa, H. Nakahara and D. Hoffman, Phys.Rev.,C42, n.2, (1990), p.674
K.-H. Schmidt et al., Z.Phys.,A316, (1984), p.19
F.P. Hessberger et al., Z.Phys.,A333,(1989), p.111
K.S. Toth et al., Phys.Rev.,C45, n.2,(1992), p.856
A.N. Andreyev et al., Sov.J.Nucl.Phys.,50,(1989),p.381