Z.Phys. A307, 305 (1982)

S.Della Negra, H.Gauvin, D.Jacquet, Y.Le Beyec

Q(β) Measurements and Mass Excess Values for Neutron Deficient Isotopes near N ≈ Z ≈ 40. I. Strontium, Yttrium and Zirconium Isotopes

RADIOACTIVITY ⁷⁹Sr(β⁺) [from ⁵⁴Fe(³²S, n2pα), ⁵⁰Cr(³²S, n2p), E=123 MeV]; measured γγ-, (X-ray)γ-coin; deduced mass excess, Q(EC), log ft. ⁷⁹Rb deduced levels, J, π, ICC, T_1/2, γ-multipolarity, γ-branching. ⁸⁰Y(β⁺) [from ⁵⁴Fe(³²S, np), E=123 MeV]; measured T_1/2, γγ-, βγ-coin; deduced log ft, Q(EC), mass excess, Q(β). ⁸⁰Sr deduced levels, J, π, T_1/2, ICC. ⁸¹Zr(β⁺) [from ⁵⁴Fe(³²S, nα), E=123 MeV]; ⁸¹Y(β⁺) [from ⁸¹Zr decay]; measured T_1/2, β-endpoint energies, βγ-, γ(X-ray)-coin; deduced Q(EC), Qβ, log ft, mass excess. ⁸¹Sr deduced levels, J, π, T_1/2, γ-branching. ⁸²Zr(β⁺), ⁸²Y(β⁺) [from ⁸²Zr decay]; measured T_1/2, βγ-coin, Eγ; deduced mass excess. ⁸²Zr deduced Q(EC). ⁸²Sr deduced levels, J, π, T_1/2 upper limit, γ-branching. ⁸³Zr(β⁺) [from ⁵⁴Fe(³²S, n2p)], ⁸³Y(β⁺) [from ⁵⁴Fe(³²S, 3p)], ^83mY(β⁺) [from ⁸³Zr decay]; measured T_1/2, Eγ, γ(X-ray), βγ-, (mass)γ-coin; deduced Q(EC), mass excess. ⁸³Y deduced levels, J, π, ICC, γ-multipolarity, T_1/2 upper limit. ⁸³Sr deduced levels. ⁸³Zr deduced isomer, T_1/2. ⁸⁴Zr(β⁺) [from ⁵⁴Fe(³²S, 2p)]; measured T_1/2, γ(X-ray)-coin. ⁸⁵Zr(β⁺) [from ⁵⁸Ni(³²S, n4p)]; measured T_1/2, βγ-coin; deduced Q(EC), mass excess.