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New α-decaying neutron deficient isotopes197Rn and200Fr (1995)

Morita, K. ; Pu, Y. H. ; Feng, J. ; [et al.]

Springer

The European physical journal 352 (1995), S. 7-8

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ISSN: 1434-601X

Keywords: 23.60.+e ; 25.70.−z ; 27.80.+w

Source: Springer Online Journal Archives 1860-2000

Topics: Physics

Notes: Abstract New neutron-deficient isotopes,197Rn,197mRn, and200Fr have been produced and identified on the basis of genetic correlations in the166Er(36Ar,5n)197Rn (Elab=186, 200 MeV), and169Tm(36Ar,5n)200Fr (Elab=186 MeV) reactions. The evaporation residues were separated from the beam by using a gas-filled recoil separator and implanted onto a position-sensitive solid-state detector. The α-decay energies (half-lives) of197Rn,197mRn and200Fr have been determined to be 7261±30 keV (51 −15 +35 ms), 7370±30 keV (18 −5 +9 ms), and 7500±3O keV, (570 −140 +270 ms), respectively.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1007/BF01292753

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