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NSR database version of May 20, 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
Citations: PlumX Metrics


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
Citations: PlumX Metrics


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
Citations: PlumX Metrics


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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