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NSR database version of May 3, 2024.

Search: Author = J.M.McDonald

Found 7 matches.

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1975BR07      Phys.Rev. C11, 1122 (1975)

B.A.Brown, D.B.Fossan, J.M.McDonald, K.A.Snover

Recoil-Distance Lifetime Measurements of ⁴⁸V Levels

NUCLEAR REACTIONS ⁴⁵Sc(α, nγ), E=9.5 MeV; measured nγ-coin, recoil distance. ⁴⁸V deduced levels, π, T_1/2, B(λ).

doi: 10.1103/PhysRevC.11.1122
Citations: PlumX Metrics

1974BR04      Phys.Rev. C9, 1033 (1974)

B.A.Brown, D.B.Fossan, J.M.McDonald, K.A.Snover

Lifetime Measurements and E2 Effective Charges for Nuclei in the 1f_7/2 Shell

NUCLEAR REACTIONS ³⁹K(α, n), E=10.4 MeV; ¹⁶O, ⁴⁰Ca(³He, p), E=10.5 MeV; ⁴⁰Ca, ⁴¹K(α, p), E=14.0 MeV; ⁴⁵Sc(α, p), E=10.0 MeV; ⁴⁶Ti(α, p), E=11.0 MeV; ⁴⁰Ca(¹⁶O, 2pα), E=47 MeV; ⁴⁹Ti(α, n), E=14.5 MeV; ⁴⁰Ca(¹⁶O, 3p), E=47 MeV; ⁴⁰Ca(¹⁶O, 2p), E=47 MeV; measured recoil distance. ¹⁸F, ^42,43Sc, ⁴⁴Ca, ⁴⁸Ti, ⁴⁹V, ^50,52Cr, ^51,53Mn levels deduced T_1/2, B(E2). Deduced 40 < A < 56 effective charges. Natural, enriched targets, Ge(Li) detector.

doi: 10.1103/PhysRevC.9.1033
Citations: PlumX Metrics

1972MA67      Phys.Rev. C6, 2109 (1972)

M.Marmor, J.M.McDonald, D.B.Fossan

Lifetime of the 2⁺ 1759-keV State in ²⁶Al via the ²³Na(α, nγ)²⁶Al Reaction

NUCLEAR REACTIONS ²³Na(α, nγ), E=9.5 MeV; measured recoil distance. ²⁶Al level deduced T_1/2.

doi: 10.1103/PhysRevC.6.2109
Citations: PlumX Metrics

1972MC09      Phys.Rev.Lett. 28, 1057 (1972)

J.M.McDonald, P.M.S.Lesser, D.B.Fossan

Time-Differential Quadrupole Interactions Following Recoil Implantation

NUCLEAR REACTIONS ¹¹¹Cd(¹⁶O, ¹⁶O'γ), E=40 MeV; measured (¹⁶O')(γ)(θ, t) in Cd metal; deduced quadrupole interaction frequencies.

doi: 10.1103/PhysRevLett.28.1057
Citations: PlumX Metrics

1971CO08      Phys.Rev. C3, 1352 (1971)

S.Cochavi, J.M.McDonald, D.B.Fossan

Experimental Study of Electromagnetic Matrix Elements in ⁹²Mo

RADIOACTIVITY ^92mTc; measured γγ-delay. ⁹²Mo level deduced T_1/2. ⁹⁰Zr(α, 2nγ), E=20-24 MeV; measured σ(E;Eγ), αγ-delay, αγ(θ, H, t). ⁹²Mo(p, p'γ), E=6-9 MeV; measured σ(E;Ep', Eγ), p'γ-delay. ⁹²Mo levels deduced T_1/2, μ.

doi: 10.1103/PhysRevC.3.1352
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1971SN01      Phys.Rev. C4, 398 (1971)

K.A.Snover, J.M.McDonald, D.B.Fossan, E.K.Warburton

Gamma-Ray Decay of the Low-Lying Levels of Cl³⁴

NUCLEAR REACTIONS ³²S(³He, pγ), E=6.8 MeV; measured Eγ, Iγ, Doppler shift attenuation. ³¹P(α, nγ), E=8-11 MeV; measured recoil distance. ³⁴Cl deduced levels, T_1/2, γ-branching.

doi: 10.1103/PhysRevC.4.398
Citations: PlumX Metrics

1970CO28      Phys.Lett. 33B, 297 (1970)

S.Cochavi, J.M.McDonald, D.B.Fossan

The Magnetic Moment of the 2761 keV 8⁺ State in ⁹²Mo

NUCLEAR REACTIONS ⁹⁰Zr(α, 2nγ), E=24 MeV; measured nγ(θ, H, t). ⁹²Mo level deduced g.

doi: 10.1016/0370-2693(70)90274-1
Citations: PlumX Metrics