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NSR database version of April 26, 2024.

Search: Author = P.J.Countryman

Found 7 matches.

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1995ZO01      Nucl.Phys. A587, 697 (1995)

A.Zondervan, L.J.de Bever, E.Jans, J.Konijn, M.Kruijer, J.J.M.Steijger, J.L.Visschers, P.J.Countryman, W.H.A.Hesselink, N.Kalantar-Nayestanaki, L.J.H.M.Kester, J.H.Mitchell, A.Pellegrino, J.R.Calarco, F.W.Hersman, M.Leuschner, T.P.Smith, Th.S.Bauer, M.W.Kelder, C.Giusti, F.D.Pacati, J.Ryckebusch, M.Vanderhaeghen

The ¹²C(e, e'p) and ¹²C(e, e'pp) Reactions in the Δ-Resonance Region

NUCLEAR REACTIONS ¹²C(e, e'p), (e, e'2p), E ≈ Δ resonance; measured six-fold, ninefold differential σ; deduced reaction mechanism. Model comparison.

doi: 10.1016/0375-9474(95)00044-2
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1990CO05      Phys.Rev. C41, 1039 (1990)

P.J.Countryman, K.A.Griffioen, K.Van Bibber, M.R.Yearian, J.R.Calarco

Direct Measurement of the Branching Ratio Γn/Γf of ²³⁸U in Inelastic Alpha Scattering in the Giant Resonance Region

NUCLEAR REACTIONS ²³⁸U(α, α'F), E=120 MeV; measured σ(fragment θα, E, En) following fission. ²³⁸U deduced Γn/Γ(F) near giant resonances, B(λ), sum rule exhaustion.

doi: 10.1103/PhysRevC.41.1039
Citations: PlumX Metrics
Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC2499.

1986CO10      Radiat.Eff. 92, 295 (1986)

P.J.Countryman, K.A.Griffioen, N.Z.Oremland, K.van Bibber, M.R.Yearian, J.R.Calarco, J.G.Woodworth

Measurement of the Neutron Spectra from the Decay of the Giant Quadrupole Resonance in ²³⁸U

NUCLEAR REACTIONS ²³⁸U(α, α'F), (α, α'nF), E=120 MeV; measured fission(fragment)α-, n(fragment)(α)-coin, σ(Eα'). ²³⁸U deduced GQR neutron decay characteristics.

doi: 10.1080/00337578608208338
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1986GR18      Phys.Rev. C34, 1375 (1986)

K.A.Griffioen, P.J.Countryman, K.T.Knopfle, K.Van Bibber, M.R.Yearian, J.G.Woodworth, D.Rowley, J.R.Calarco

Coincident Electrofission of ²³⁸U at q ≈ 0.26, 0.40, and 0.55 fm^-1

NUCLEAR REACTIONS ²³⁸U(e, e'F), E=80.3, 81.6, 82.5, 118.4, 119.1, 120.7, 159.9, 163.8 MeV; measured σ(θ(e'), fragment θ) vs excitation following fission. ²³⁸U levels deduced transition radii, multipole fission probability, Γ, EWSR, strength functions, form factors. Magnetic spectrometer, parallel plate avalanche counter. Quasiparticle random phase approximation.

doi: 10.1103/PhysRevC.34.1375
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1985WA22      Phys.Rev. C32, 894 (1985)

S.Wald, S.B.Gazes, C.R.Albiston, Y.Chan, B.G.Harvey, M.J.Murphy, I.Tserruya, R.G.Stokstad, P.J.Countryman, K.Van Bibber, H.Homeyer

Transfer and Breakup Processes in Reactions of 11- and 17-MeV/nucleon ²⁰Ne + ¹⁹⁷Au

NUCLEAR REACTIONS ¹⁹⁷Au(²⁰Ne, X), E=220, 341 MeV; measured σ(fragment E, θ, Z) for X=Li, Be, B, C, N, O, F; deduced transfer, breakup, primary ejectile yields. Coincidence techniques.

doi: 10.1103/PhysRevC.32.894
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1985WO03      Phys.Lett. 153B, 226 (1985)

J.G.Woodworth, D.Rowley, J.D.T.Arruda-Neto, P.J.Countryman, K.A.Griffioen, D.H.H.Hoffmann, K.T.Knopfle, K.Van Bibber, M.R.Yearian, J.R.Calarco

The Inclusive Electrofission of ²³⁸U at Incident Energies Between 45 and 120 MeV

NUCLEAR REACTIONS ²³⁸U(e, e'F), E=47.6-119.1 MeV; measured fission fragment (e')-coin, σ(E).

doi: 10.1016/0370-2693(85)90536-2
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1984GR26      Phys.Rev.Lett. 53, 2382 (1984); Erratum Phys.Rev.Lett. 54, 852 (1985)

K.A.Griffioen, P.J.Countryman, K.T.Knopfle, K.Van Bibber, M.R.Yearian, J.G.Woodworth, D.Rowley, J.R.Calarco

Coincidence Electron Scattering (e, e'f) and Multipole Strength Functions in ²³⁸U

NUCLEAR REACTIONS ²³⁸U(e, e'F), E=80.3, 118.4, 163.8 MeV; measured σ(θ(e'), E(e')), fission(fragment)(e)-coin. ²³⁸U deduced multipole strength function distributions, EWSR. Model-dependent form factors, least-squares fitting procedure.

doi: 10.1103/PhysRevLett.53.2382
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