NSR Query Results
Output year order : Descending NSR database version of April 26, 2024. Search: Author = C.T.Angell Found 14 matches. 2016AN16 Phys.Rev.Lett. 117, 142501 (2016) C.T.Angell, R.Hajima, T.Shizuma, B.Ludewigt, B.J.Quiter Branching and Fragmentation of Dipole Strength in 181Ta in the Region of the Scissors Mode NUCLEAR REACTIONS 181Ta(γ, γ'), E=2.28, 2.75 MeV; measured reaction products, Eγ, Iγ; deduced σ, resonances at the energy of the scissors mode significantly branching to excited states, B(M1).
doi: 10.1103/PhysRevLett.117.142501
2014AN13 Phys.Rev. C 90, 054315 (2014) C.T.Angell, R.Hajima, T.Hayakawa, T.Shizuma, H.J.Karwowski, J.Silano Validating resonance properties using nuclear resonance fluorescence NUCLEAR REACTIONS 27Al(polarized γ, γ'), E=2.6-3.2 MeV; measured Eγ, Iγ, integrated cross section for the 3.004-MeV level in 27Al at HIγS-TUNL facility; 27Al; deduced level spin, validation procedure of spectroscopic properties of a resonance.
doi: 10.1103/PhysRevC.90.054315
2014RO25 Phys.Rev. C 90, 044323 (2014) T.J.Ross, R.O.Hughes, J.M.Allmond, C.W.Beausang, C.T.Angell, M.S.Basunia, D.L.Bleuel, J.T.Burke, R.J.Casperson, J.E.Escher, P.Fallon, R.Hatarik, J.Munson, S.Paschalis, M.Petri, L.W.Phair, J.J.Ressler, N.D.Scielzo Spectroscopy of 153Gd and 157Gd using the (p, dγ) reaction NUCLEAR REACTIONS 154,158Gd(p, d), E=25 MeV; measured Eγ, Iγ, E(d), I(d), dγ-, dγγ-coin, d(θ) in coincidence with γ rays using STARS and LIBERACE arrays at LBNL cyclotron facility. 153,157Gd; deduced levels, J, π, L-transfers, Nilsson assignments. DWBA analysis of angular distribution data. Comparison with previous experimental results. Discussed residual effects of a neutron subshell closure at N=64.
doi: 10.1103/PhysRevC.90.044323
2013CZ01 Phys.Rev. C 87, 034613 (2013) A.Czeszumska, C.T.Angell, J.T.Burke, N.D.Scielzo, E.B.Norman, R.A.E.Austin, G.Boutoux, R.J.Casperson, P.Chodash, R.O.Hughes, C.M.Mattoon, V.Meot, J.Munson, L.Phair, J.J.Ressler, O.Roig, T.J.Ross, E.Swanberg, B.Wang Determining the 239Np(n, f) cross section using the surrogate ratio method NUCLEAR REACTIONS 236,238U(3He, pF), E=29 MeV; measured proton, deuteron, triton, 3,4He spectra, fission events, fission anisotropies, particle-fission time-to-amplitude spectrum, (fission)p-coin using STARS array at LBNL cyclotron facility. 239Np(n, F), E=0.5-20 MeV; deduced cross section by surrogate ratio method. Comparison with ENDF/B-VII.0, JENDL-4.0, and CENDL-3.1 evaluated libraries. Impact on estimate of 240Pu produced during fuel burnup in calculations using reactor codes.
doi: 10.1103/PhysRevC.87.034613
2013RO23 Phys.Rev. C 88, 031301 (2013) T.J.Ross, R.O.Hughes, C.W.Beausang, J.M.Allmond, C.T.Angell, M.S.Basunia, D.L.Bleuel, J.T.Burke, R.J.Casperson, J.E.Escher, P.Fallon, R.Hatarik, J.Munson, S.Paschalis, M.Petri, L.W.Phair, J.J.Ressler, N.D.Scielzo Remnants of spherical shell structures in deformed nuclei: The impact of an N=64 neutron subshell closure on the structure of N≈90 gadolinium nuclei NUCLEAR REACTIONS 154,156,158Gd(p, d), E=25 MeV; measured deuteron and γ spectra, dγ-, γγ-coin, σ(θ) for deuterons using STARS and LIBERACE detector systems at LBNL facility. DWBA analysis of σ(θ) data. 153,155, 157Gd; deduced low-energy levels, J, π, Nilsson configurations, persistence of spherical shell structure.
doi: 10.1103/PhysRevC.88.031301
2012AN13 Phys.Rev. C 86, 051302 (2012); Erratum Phys.Rev. C 91, 039901 (2015) C.T.Angell, S.L.Hammond, H.J.Karwowski, J.H.Kelley, M.Krticka, E.Kwan, A.Makinaga, G.Rusev Evidence for radiative coupling of the pygmy dipole resonance to excited states NUCLEAR REACTIONS 142Nd(γ, n), E=9.86-13.3 MeV; 142Nd(polarized γ, γ'), E=4.2-9.7 MeV; measured Eγ, Iγ, branching ratio, σ(E) using High Intensity γ-ray Source (HIγS) at TUNL for (γ, γ'), and quasimonoenergetic γ-ray source at Tsukuba; deduced two distinct PDR peaks. Comparison with statistical-model calculations. Violation of Brink hypothesis.
doi: 10.1103/PhysRevC.86.051302
2012HA12 Phys.Rev. C 85, 044302 (2012) S.L.Hammond, A.S.Adekola, C.T.Angell, H.J.Karwowski, E.Kwan, G.Rusev, A.P.Tonchev, W.Tornow, C.R.Howell, J.H.Kelley Dipole response of 238U to polarized photons below the neutron separation energy NUCLEAR REACTIONS 238U(polarized γ, γ'), E=2.0-6.2 MeV; measured Eγ, Iγ, γ(θ), γ(linear pol), integrated cross sections using HIγS facility at TUNL. 238U; deduced levels, J, π, multipolarity, widths, branching ratios, B(M1), B(E1), total γ-ray interaction cross section for E1. Systematics of E1 and M1 strengths for 232Th, 236,238U. Comparison with QRPA calculations.
doi: 10.1103/PhysRevC.85.044302
2012RO14 Phys.Rev. C 85, 051304 (2012) T.J.Ross, C.W.Beausang, R.O.Hughes, J.M.Allmond, C.T.Angell, M.S.Basunia, D.L.Bleuel, J.T.Burke, R.J.Casperson, J.E.Escher, P.Fallon, R.Hatarik, J.Munson, S.Paschalis, M.Petri, L.Phair, J.J.Ressler, N.D.Scielzo, I.J.Thompson Measurement of the entry-spin distribution imparted to the high excitation continuum region of gadolinium nuclei via (p, d) and (p, t) reactions NUCLEAR REACTIONS 154,158Gd(p, d), (p, t), E=25 MeV; measured particle and γ spectra, pγ-, dγ-, tγ-coin, σ(θ) using STARS-LIBERACE array; deduced entry spin distribution for the highly excited quasicontinuum in light-ion transfer reactions. DWBA analysis of σ(θ) data. 153,156Gd; deduced levels, J, π, l-transfer.
doi: 10.1103/PhysRevC.85.051304
2012RO42 Phys.Rev. C 86, 067301 (2012) T.J.Ross, C.W.Beausang, R.O.Hughes, N.D.Scielzo, J.T.Burke, J.M.Allmond, C.T.Angell, M.S.Basunia, D.L.Bleuel, R.J.Casperson, J.E.Escher, P.Fallon, R.Hatarik, J.Munson, S.Paschalis, M.Petri, L.Phair, J.J.Ressler Spectroscopy of 88Y by the (p, dγ) reaction NUCLEAR REACTIONS 89Y(p, d), E=25 MeV; measured E(d), I(d), Eγ, Iγ, dγ-coin, yields using STARS array for deuterons and LIBERACE array for γ rays at LBNL cyclotron facility. 88Y; deduced levels, branching ratios. 89Y(p, p'), (p, p'n), E=25 MeV; measured Ep, Ip, pγ-coin.
doi: 10.1103/PhysRevC.86.067301
2011AD02 Phys.Rev. C 83, 034615 (2011) A.S.Adekola, C.T.Angell, S.L.Hammond, A.Hill, C.R.Howell, H.J.Karwowski, J.H.Kelley, E.Kwan Discovery of low-lying E1 and M1 strengths in 232Th NUCLEAR REACTIONS 232Th(γ, γ'), E=2-4 MeV; measured Eγ, Iγ, γγ(θ), integrated σ using HIγS facility; deduced widths. 232Th; deduced levels, J, π, multipolarity, B(M1), B(E1), branching ratios. Comparison of scissors mode summed B(M1) strengths with those in 232Th, 235,236,238U, and with predictions of quasiparticle random-phase approximation (QRPA).
doi: 10.1103/PhysRevC.83.034615
2011CH33 Appl.Radiat.Isot. 69, 1447 (2011) P.Chodash, C.T.Angell, J.Benitez, E.B.Norman, M.Pedretti, H.Shugart, E.Swanberg, R.Yee Measurement of excitation functions for the natMo(d, x)99Mo and natMo(p, x)99Mo reactions NUCLEAR REACTIONS Mo(d, X)99Mo, 100Mo(p, X)99Mo, Cu(p, X)62Zn/65Zn E=9.7-58.5 MeV; measured reaction products, Eγ, Iγ; deduced σ, thick target yields.
doi: 10.1016/j.apradiso.2011.05.013
2011RE09 Phys.Rev. C 83, 054610 (2011) J.J.Ressler, J.T.Burke, J.E.Escher, C.T.Angell, M.S.Basunia, C.W.Beausang, L.A.Bernstein, D.L.Bleuel, R.J.Casperson, B.L.Goldblum, J.Gostic, R.Hatarik, R.Henderson, R.O.Hughes, J.Munson, L.W.Phair, T.J.Ross, N.D.Scielzo, E.Swanberg, I.J.Thompson, M.Wiedeking Surrogate measurement of the 238Pu(n, f) cross section NUCLEAR REACTIONS 239Pu(α, α'F), 235U(α, α'F), 236U(α, α'F), E=20-55 MeV; measured particle and fission fragment spectra, α-fission coincidences, cross sections, fission fragment anisotropy ratios. 238Pu, 234,235U(n, F), E=5-20 MeV; deduced fission cross sections using surrogate ratio method. Comparison with previous experimental data and evaluated libraries. Data needs for following reactions for next-generation reactors: 241Pu, 241,242Am, 243,244,245Cm(n, F), E.1 MeV. Potential surrogate and ratio reactions listed.
doi: 10.1103/PhysRevC.83.054610
2010AN15 Phys.Rev. C 82, 054310 (2010) C.T.Angell, R.Yee, T.H.Joshi, E.Swanberg, E.B.Norman, C.L.Hicks, Jr., A.Klimenko, S.Korbly, C.Wilson, W.D.Kulp, G.A.Warren, T.H.Bray, R.Copping, P.A.Glans, T.Tyliszczak, D.K.Shuh Nuclear resonance fluorescence of 237Np NUCLEAR REACTIONS 237Np(γ, γ'), E=1.7-2.5 MeV; measured Eγ, Iγ, NRF-integrated cross sections. 237Np; deduced levels, B(M1) strength. Comparison with NRF-integrated cross sections in 235U and 239Pu.
doi: 10.1103/PhysRevC.82.054310
2008TO06 Phys.Rev. C 77, 054610 (2008) A.P.Tonchev, C.T.Angell, M.Boswell, A.S.Crowell, B.Fallin, S.Hammond, C.R.Howell, A.Hutcheson, H.J.Karwowski, J.H.Kelley, R.S.Pedroni, W.Tornow, J.A.Becker, D.Dashdorj, J.Kenneally, R.A.Macri, M.A.Stoyer, C.Y.Wu, E.Bond, M.B.Chadwick, J.Fitzpatrick, T.Kawano, R.S.Rundberg, A.Slemmons, D.J.Vieira, J.B.Wilhelmy Measurement of the 241Am(n, 2n) reaction cross section from 7.6 MeV to 14.5 MeV NUCLEAR REACTIONS 241Am(n, 2n), E=7.6-14.5 MeV; measured Eγ, Iγ, neutron time-of-flight spectra, σ, excitation functions. Comparison with evaluated data in ENDF/B-VII and JENDL-3.3.
doi: 10.1103/PhysRevC.77.054610
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