NSR Query Results
Output year order : Descending NSR database version of April 11, 2024. Search: Author = D.J.Mercer Found 25 matches. 2021ME21 Nucl.Technology 207, s309 (2021) D.J.Mercer, K.E.Koehler, M.P.Croce, A.S.Hoover, P.A.Hypes, S.A.Kozimor, V.Mocko, P.R.J.Saey, D.R.Schmidt, J.N.Ullom Gamma and Decay Energy Spectroscopy Measurements of Trinitite RADIOACTIVITY 152,154Eu, 137Cs, 60Co(β-), 241Am(α); measured decay products, Eγ, Iγ; deduced γ-ray energies and intensities.
doi: 10.1080/00295450.2021.1922258
2021TO03 Appl.Radiat.Isot. 172, 109693 (2021) A.D.Tollefson, C.M.Smith, M.H.Carpenter, M.P.Croce, M.E.Fassbender, K.E.Koehler, L.M.Lilley, E.M.O'Brien, D.R.Schmidt, B.W.Stein, J.N.Ullom, M.D.Yoho, D.J.Mercer Measurement of 227Ac impurity in 225Ac using decay energy spectroscopy RADIOACTIVITY 225,227Ac(β-), 227Ac(α); measured decay products, Eγ, Iγ; deduced the EOB activities ratio.
doi: 10.1016/j.apradiso.2021.109693
2020YO01 Nucl.Instrum.Methods Phys.Res. A977, 164307 (2020) M.D.Yoho, K.E.Koehler, D.T.Becker, D.A.Bennett, M.H.Carpenter, M.P.Croce, J.D.Gard, J.A.B.Mates, D.J.Mercer, N.J.Ortiz, D.R.Schmidt, C.M.Smith, D.S.Swetz, A.D.Tollefson, J.N.Ullom, L.R.Vale, A.L.Wessels, D.T.Vo Improved plutonium and americium photon branching ratios from microcalorimeter gamma spectroscopy RADIOACTIVITY 238,239,240Pu(α), 241Pu(β-), 241Am(α); measured decay products, Eγ, Iγ, X-rays; deduced γ-ray energies, branching ratios. Comparison with available data.
doi: 10.1016/j.nima.2020.164307
2001AU06 Nucl.Phys. A688, 70c (2001) Cosmic-Ray Production of 6, 7Li by the α + α Reaction NUCLEAR REACTIONS 4He(α, 2p), (α, pn), (α, p), (α, n), E=159-620 MeV; measured σ. Comparison with previous results and with systematics. Astrophysical significance discussed.
doi: 10.1016/S0375-9474(01)00671-6
2001ME13 Phys.Rev. C63, 065805 (2001) D.J.Mercer, S.M.Austin, J.A.Brown, S.A.Danczyk, S.E.Hirzebruch, J.H.Kelley, T.Suomijarvi, D.A.Roberts, T.P.Walker Production of A = 6, 7 Nuclides in the α + α Reaction and Cosmic Ray Nucleosynthesis NUCLEAR REACTIONS 4He(α, 2p), (α, np), (α, d), (α, p), (α, n), E=160, 280, 620 MeV; measured σ(θ), σ. Astrophysical implications discussed.
doi: 10.1103/PhysRevC.63.065805
2000GE11 Phys.Rev. C62, 024612 (2000) C.J.Gelderloos, J.T.Brack, M.D.Holcomb, M.V.Keilman, D.J.Mercer, R.J.Peterson, R.A.Ristinen, A.Saunders Reaction and Total Cross Sections for 400-500 MeV π- on Nuclei NUCLEAR REACTIONS 2H, 6Li, C, 27Al, S, Ca, Cu, Zr, Sn, Pb(π-, X), E=400-500 MeV; measured total and reaction σ. Comparison with elastic scattering data, model predictions.
doi: 10.1103/PhysRevC.62.024612
1999AN13 Nucl.Phys. A648, 3 (1999) T.Annakkage, J.Janecke, J.S.Winfield, G.P.A.Berg, J.A.Brown, G.Crawley, S.Danczyk, M.Fujiwara, D.J.Mercer, K.Pham, D.A.Roberts, J.Stasko, G.H.Yoo Isovector Giant Resonances in 6He, 12B, 90Y, 120In, and 208Tl Observed in the (7Li, 7Be) Charge-Exchange Reaction NUCLEAR REACTIONS H, C, 6Li, 12C, 90Zr, 120Sn, 208Pb(7Li, 7Be), E=350 MeV; measured particle spectra, angular distributions, Eγ, Iγ(θ). 6He, 12B, 90Y, 120In, 208Tl deduced resonance features, spinflip ratios, spinflip enhancement, effective number of participating protons. Microscopic one-step distorted-wave analysis with shell-model transition amplitudes.
doi: 10.1016/S0375-9474(99)00015-9
1997AH01 Phys.Rev.Lett. 78, 618 (1997) I.Ahmad, S.M.Austin, B.B.Back, R.R.Betts, F.P.Calaprice, K.C.Chan, A.Chishti, C.Conner, R.W.Dunford, J.D.Fox, S.J.Freedman, M.Freer, S.B.Gazes, A.L.Hallin, T.Happ, D.Henderson, N.I.Kaloskamis, E.Kashy, W.Kutschera, J.Last, C.J.Lister, M.Liu, M.R.Maier, D.J.Mercer, D.Mikolas, P.A.A.Perera, M.D.Rhein, D.E.Roa, J.P.Schiffer, T.A.Trainor, P.Wilt, J.S.Winfield, M.R.Wolanski, F.L.H.Wolfs, A.H.Wuosmaa, G.Xu, A.Young, J.E.Yurkon, and the APEX Collaboration Search for Monoenergetic Positron Emission from Heavy-Ion Collisions at Coulomb-Barrier Energies NUCLEAR REACTIONS 181Ta(238U, X), E=5.95-6.3 MeV/nucleon; 232Th(238U, X), E=5.95 MeV/nucleon; measured positron energy spectra; deduced no structure.
doi: 10.1103/PhysRevLett.78.618
1997AH04 Phys.Rev. C55, R2755 (1997) I.Ahmad, S.M.Austin, B.B.Back, R.R.Betts, F.P.Calaprice, K.C.Chan, A.A.Chishti, C.Conner, R.W.Dunford, J.D.Fox, S.J.Freedman, M.Freer, J.S.Greenberg, S.B.Gazes, A.L.Hallin, T.Happ, D.Henderson, N.I.Kaloskamis, E.Kashy, W.Kutschera, J.Last, C.J.Lister, M.Liu, M.R.Maier, D.J.Mercer, D.Mikolas, P.A.A.Perera, M.D.Rhein, D.E.Roa, J.P.Schiffer, T.A.Trainor, P.Wilt, J.S.Winfield, M.Wolanski, F.L.H.Wolfs, A.H.Wuosmaa, G.Xu, A.Young, J.E.Yurkon, and the APEX Collaboration Internal Pair Conversion in Heavy Nuclei NUCLEAR REACTIONS 206Pb(206Pb, X), E=5.90 MeV/nucleon; measured e+e--sum energy spectra, Doppler corrected Eγ; deduced internal pair conversion to gamma branching ratio. 232Th(208Pb, X), E=5.80 MeV/nucleon; 238U(208Pb, X), E=5.80 MeV/nucleon; 181Ta(238U, X), E=5.95 MeV/nucleon; 232Th(238U, X), E=5.90 MeV/nucleon; measured e+e--sum energy, Doppler corrected Eγ; deduced no discrete lines evidence in e+e- spectra. 238U deduced new levels evidence.
doi: 10.1103/PhysRevC.55.R2755
1997AH05 Z.Phys. A358, 235 (1997) I.Ahmad, S.M.Austin, B.B.Back, R.R.Betts, F.P.Calaprice, K.C.Chan, A.Chishti, P.Chowdhury, C.Conner, R.W.Dunford, J.D.Fox, S.J.Freedman, M.Freer, S.B.Gazes, A.L.Hallin, T.Happ, D.Henderson, N.I.Kaloskamis, E.Kashy, W.Kutschera, J.Last, C.J.Lister, M.Liu, M.R.Maier, D.J.Mercer, D.Mikolas, P.A.A.Perera, M.D.Rhein, D.E.Roa, J.P.Schiffer, T.A.Trainor, P.Wilt, J.S.Winfield, M.Wolanski, F.L.H.Wolfs, A.H.Wuosmaa, A.Young, J.E.Yurkon, and the APEX Collaboration The Positron-Electron Peak Puzzle: Results from APEX NUCLEAR REACTIONS 232Th(238U, X), E=5.78-5.95 MeV/nucleon; 181Ta(238U, X), E=5.79-6.3 MeV/nucleon; measured total (e+)(heavy-ion)-, (e+e-)(heavy-ion)-coin events number; deduced very low light neutral particle production upper limits.
doi: 10.1007/s002180050316
1997ME02 Phys.Rev. C55, 946 (1997) D.J.Mercer, S.M.Austin, B.G.Glagola Suggested Correction to 6He, 6,7Li, and 7Be Production Cross Sections in α + α Reactions between 60 and 160 MeV NUCLEAR REACTIONS 4He(α, α), (α, X)6Li/7Li/7Be/6He, E=60-160 MeV; analyzed residuals production data; deduced normalization inconsistencies in earlier work, astrophysical implications.
doi: 10.1103/PhysRevC.55.946
1996AH05 Acta Phys.Pol. B27, 387 (1996) I.Ahmad, S.M.Austin, B.B.Back, R.R.Betts, F.P.Calaprice, K.C.Chan, A.Chishti, P.Chowdhury, C.Conner, R.W.Dunford, J.D.Fox, S.J.Freedman, M.Freer, S.Gazes, A.L.Hallin, T.Happ, N.Kaloskamis, E.Kashy, W.Kutschera, J.Last, C.J.Lister, M.Liu, M.R.Maier, D.J.Mercer, D.Mikolas, A.Perera, M.D.Rhein, D.E.Roa, J.P.Schiffer, T.Trainor, P.Wilt, J.S.Winfield, M.Wolanski, F.L.H.Wolfs, A.H.Wuosmaa, A.Young, J.E.Yurkon, and the APEX Collaboration The Positron Peak Puzzle - Recent Results from APEX NUCLEAR REACTIONS 232Th(238U, X), E=5.95 MeV/nucleon; 181Ta(238U, X), E=5.96-6.3 MeV/nucleon; 206Pb(206Pb, X), E not given; analyzed e+e--sum energy spectra. 232Th, 238U(208Pb, X), E=5.8 MeV/nucleon; 232Th, 181Ta(238U, X), E=5.95 MeV/nucleon; 206Pb(206Pb, X), E=5.9 MeV/nucleon; analyzed Doppler reconstructed γ spectra; deduced limits on 1.78 MeV 238U transition possible contribution to (heavy ion)γ-coin.
1996JA08 Nucl.Phys. A599, 191c (1996) J.Janecke, T.Annakkage, K.Pham, D.A.Roberts, J.A.Brown, G.Crawley, S.Danczik, D.J.Mercer, J.Stasko, J.S.Winfield, G.H.Yoo, G.P.A.Berg, M.Fujiwara Isovector Giant Resonances in 6He, 12B, 90Y, 120In, and 208Tl NUCLEAR REACTIONS 6Li, 12C, 90Zr, 120Sn, 208Pb(7Li, 7Be), E=350 MeV; measured σ(θ), 7Be spectra, γ(7Be)-coin. 6He, 12B, 90Y, 120In, 208Tl deduced isovector giant resonances, J, π, width.
doi: 10.1016/0375-9474(96)00061-9
1996JA11 Phys.Rev. C54, 1070 (1996) J.Janecke, T.Annakkage, G.P.A.Berg, B.A.Brown, J.A.Brown, G.Crawley, S.Danczyk, M.Fujiwara, D.J.Mercer, K.Pham, D.A.Roberts, J.Stasko, J.S.Winfield, G.H.Yoo Structure of the Neutron-Halo Nucleus 6He NUCLEAR REACTIONS 6Li(7Li, 7Be), E=350 MeV; measured σ(θ). 6He deduced resonances, J, π. Microscopic finite-range DWBA.
doi: 10.1103/PhysRevC.54.1070
1995AH06 Phys.Rev.Lett. 75, 2658 (1995) I.Ahmad, S.M.Austin, B.B.Back, R.R.Betts, F.P.Calaprice, K.C.Chan, A.Chishti, P.Chowdhury, C.Conner, R.W.Dunford, J.D.Fox, S.J.Freedman, M.Freer, S.B.Gazes, A.L.Hallin, T.Happ, D.Henderson, N.I.Kaloskamis, E.Kashy, W.Kutschera, J.Last, C.J.Lister, M.Liu, M.R.Maier, D.J.Mercer, D.Mikolas, P.A.A.Perera, M.D.Rhein, D.E.Roa, J.P.Schiffer, T.A.Trainor, P.Wilt, J.S.Winfield, M.Wolanski, F.L.H.Wolfs, A.H.Wuosmaa, G.Xu, A.Young, J.E.Yurkon, and the APEX Collaboration Search for Narrow Sum-Energy Lines in Electron-Positron Pair Emission from Heavy-Ion Collisions Near the Coulomb Barrier NUCLEAR REACTIONS 181Ta(238U, X), E=5.95-6.3 MeV/nucleon; 232Th(238U, X), E=5.95 MeV/nucleon; measured pair emission sum spectra; deduced no sharp lines evidence, neutral particle isolated decay related features.
doi: 10.1103/PhysRevLett.75.2658
1995PR04 Phys.Rev. C52, 228 (1995) D.L.Prout, C.Zafiratos, T.N.Taddeucci, J.Ullmann, R.C.Byrd, T.A.Carey, P.Lisowski, J.B.McClelland, L.J.Rybarcyk, W.Sailor, W.Amian, M.Braunstein, D.Lind, D.J.Mercer, D.Cooper, S.DeLucia, B.Luther, D.G.Marchlenski, E.Sugarbaker, J.Rapaport, B.K.Park, E.Gulmez, C.A.Whitten, Jr., C.D.Goodman, W.Huang, D.Ciskowski, W.P.Alford Cross Sections and Analyzing Powers for Quasielastic Scattering at 795 and 495 MeV using the (p(pol), n) Reaction NUCLEAR REACTIONS 12C, Pb(polarized p, n), E=495, 795 MeV; measured σ(θ), analyzing power vs energy loss. Models comparison.
doi: 10.1103/PhysRevC.52.228
1994LA10 Nucl.Phys. A569, 297c (1994) H.Laurent, S.Gales, D.Beaumel, G.M.Crawley, J.E.Finck, S.Fortier, J.M.Maison, C.P.Massolo, D.J.Mercer, J.S.Winfield, G.H.Yoo Spin-Isospin Multipole Excitations by Means of the (6Li, 6He) Reaction at 100 A.MeV NUCLEAR REACTIONS 12,13C, 58Ni, 90Zr, 208Pb(6Li, 6He), E=100 MeV/nucleon; measured σ(θ, E(6He)). 13,12N, 58Cu, 90Nb, 208Bi deduced spin-isospin multipole excitation features.
doi: 10.1016/0375-9474(94)90120-1
1994ME07 Phys.Rev. C49, 3104 (1994) D.J.Mercer, J.Rapaport, C.A.Whitten, Jr., D.Adams, R.Byrd, X.Y.Chen, A.Fazely, T.Gaussiran, E.Gulmez, C.Goodman, D.W.Huang, G.Igo, A.Ling, D.Marchlenski, D.Prout, L.Rybarcyk, E.Sugarbaker, T.N.Taddeucci Multipole Decomposition of the 16O(p, n)16F and 18O(p, n)18F Reactions at 494 MeV NUCLEAR REACTIONS 16,18O(p, n), E=494 MeV; measured σ(θ); deduced transition multipole components for ΔL=0, ΔL=1, ΔL ≥ 2. 18,16F deduced Gamow-Teller strength B(GT).
doi: 10.1103/PhysRevC.49.3104
1994ME24 Nucl.Instrum.Methods Phys.Res. A350, 491 (1994) D.J.Mercer, D.Mikolas, J.Yurkon, S.M.Austin, D.Bazin, S.Gaff, E.Kashy, D.Kataria, J.S.Winfield, R.R.Betts, D.J.Henderson, A.L.Hallin, M.Liu, F.L.H.Wolfs A Large Solid-Angle Array for Heavy Ions from APEX NUCLEAR REACTIONS 58Ni(58Ni, 58Ni), E=200 MeV; measured σ(θ). 181Ta(238U, X), E=1.45 GeV; measured fragment tof, mass spectra. Large solid-angle array of low pressure multi-wire proportional counters. Other reactions studied.
doi: 10.1016/0168-9002(94)91249-1
1993CH13 Phys.Rev. C47, 2159 (1993) X.Y.Chen, T.N.Taddeucci, J.B.McClelland, T.A.Carey, R.C.Byrd, L.J.Rybarcyk, W.C.Sailor, D.J.Mercer, D.L.Prout, S.DeLucia, B.Luther, D.G.Marchlenski, E.Sugarbaker, J.Rapaport, E.Gulmez, C.A.Whitten, Jr., C.D.Goodman, W.Huang, Y.Wang, W.P.Alford Polarization Transfer in Quasifree (p(pol), n(pol) Reactions at 495 MeV NUCLEAR REACTIONS 2H, 12C, 40Ca(polarized p, n), E=495 MeV; measured σ(θ), analyzing power, polarization transfer coefficient vs energy loss; deduced response functions, residual interaction modifications.
doi: 10.1103/PhysRevC.47.2159
1993ME06 Phys.Rev.Lett. 71, 684 (1993) D.J.Mercer, T.N.Taddeucci, L.J.Rybarcyk, X.Y.Chen, D.L.Prout, R.C.Byrd, J.B.McClelland, W.C.Sailor, S.DeLucia, B.Luther, D.G.Marchlenski, E.Sugarbaker, E.Gulmez, C.A.Whitten, Jr., C.D.Goodman, J.Rapaport Polarization Transfer in (p(pol), n(pol)) Reactions at 318 and 494 MeV and the Effective Interaction NUCLEAR REACTIONS 2H, 12,14C(polarized p, n), E=318, 494 MeV; measured polarization transfer observable; deduced medium effects modification to effective interaction.
doi: 10.1103/PhysRevLett.71.684
1992MC06 Phys.Rev. C45, 2564 (1992) M.W.McNaughton, K.Koch, I.Supek, N.Tanaka, D.A.Ambrose, P.Coffey, K.Johnston, K.H.McNaughton, P.J.Riley, G.Glass, J.C.Hiebert, L.C.Northcliffe, A.J.Simon, D.J.Mercer, D.L.Adams, H.Spinka, R.H.Jeppesen, G.E.Tripard, H.Woolverton 2H(p, n)2p Spin Transfer from 305 to 788 MeV NUCLEAR REACTIONS 2H(polarized p, n), E=305-788 MeV; measured spin transfer parameter K(LL); deduced neutron beam polarization.
doi: 10.1103/PhysRevC.45.2564
1992MC08 Phys.Rev. C46, 47 (1992) K.H.McNaughton, D.A.Ambrose, P.Coffey, K.Johnston, P.J.Riley, M.W.McNaughton, K.Koch, I.Supek, N.Tanaka, G.Glass, J.C.Hiebert, L.C.Northcliffe, A.J.Simon, D.J.Mercer, D.L.Adams, H.Spinka, R.H.Jeppesen, G.E.Tripard, H.Woolverton np Elastic Spin-Transfer Measurements at 485 and 635 MeV NUCLEAR REACTIONS 1H(polarized n, p), E=485, 635 MeV; measured spin-transfer parameters; deduced phase shifts.
doi: 10.1103/PhysRevC.46.47
1992MC09 Phys.Rev.Lett. 69, 582 (1992) J.B.McClelland, T.N.Taddeucci, X.Y.Chen, W.P.Alford, R.C.Byrd, T.A.Carey, S.DeLucia, C.D.Goodman, E.Gulmez, W.Huang, B.Luther, D.G.Marchlenski, D.J.Mercer, D.L.Prout, J.Rapaport, L.J.Rybarcyk, W.Sailor, E.Sugarbaker, Y.Wang, C.Whitten, Jr. Quasifree Polarization-Transfer Measurements in the (p(pol), n(pol)) Reaction at 495 MeV NUCLEAR REACTIONS 2H, C, Ca(polarized p, n), E=495 MeV; measured polarization transfer variables, complete set; deduced longitudinal to spin-transverse responses ratio. Distorted waves, RPA nuclear response.
doi: 10.1103/PhysRevLett.69.582
1992PE14 Phys.Lett. 297B, 238 (1992) R.J.Peterson, S.Hoibraten, J.Ouyang, M.R.Braunstein, X.Y.Chen, M.D.Kohler, B.J.Kriss, D.J.Mercer, D.S.Oakley, D.L.Prout, W.Fong Quasifree Pion Single Charge Exchange at 500 MeV NUCLEAR REACTIONS Zr, C(π-, π0), (π+, π0), E=500 MeV; measured σ(θ); deduced quasifree peak shift features. Pauli-blocked Fermi-gas model.
doi: 10.1016/0370-2693(92)91255-8
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