NSR Query Results
Output year order : Descending NSR database version of April 25, 2024. Search: Author = H.W.Becker Found 69 matches. 2023FO01 Nucl.Instrum.Methods Phys.Res. B542, 158 (2023) V.Foteinou, F.Maragkos, H.-W.Becker, L.Hess, K.Ivankovic, M.Kokkoris, M.Mayer, G.Provatas, D.Rogalla Differential cross-section measurements for the 9Be(3He, 3He0)9Be elastic scattering and the 9Be(3He, px)11B reactions NUCLEAR REACTIONS 9Be(3He, 3He), (3He, p), E=1.6-6 MeV; measured reaction products; deduced σ(θ) for IBANDL project. The Tandem Accelerator Facility of the Ruder Boskovic Institute (RBI) in Zagreb, Croatia.
doi: 10.1016/j.nimb.2023.06.016
2023KE11 Phys.Rev. C 108, 035805 (2023) K-U.Kettner, H.W.Becker, C.R.Brune, R.J.deBoer, J.Gorres, D.Odell, D.Rogalla, M.Wiescher Absolute cross section of the 12C(p, γ)13N reaction
doi: 10.1103/PhysRevC.108.035805
2020SC12 Phys.Rev. C 102, 045811 (2020) P.Scholz, H.Wilsenach, H.W.Becker, A.Blazhev, F.Heim, V.Foteinou, U.Giesen, C.Munker, D.Rogalla, P.Sprung, A.Zilges, K.Zuber New measurement of the 144Sm(α, γ)148Gd reaction rate for the γ process NUCLEAR REACTIONS 144Sm(α, γ)148Gd, E=10.66-12.66 MeV; measured Eα, Iα from α decay of 148Gd at , σ(E) using activation method by irradiating the 144Sm targets at the cyclotron of PTB-Braunschweig, and α counting at TU-Dresden; deduced astrophysical reaction rates from 1.5-4.5 GK. Comparison with earlier experimental results, and with statistical-model using the TALYS code and the latest parametrizations of α+ nucleus optical model potentials (OMPs). Reaction rates compared with data in Reaclib database.
doi: 10.1103/PhysRevC.102.045811
2019FO13 Eur.Phys.J. A 55, 67 (2019) V.Foteinou, M.Axiotis, S.Harissopulos, P.Dimitriou, G.Provatas, A.Lagoyannis, H.-W.Becker, D.Rogalla, A.Zilges, A.Schreckling, A.Endres Cross section measurements of proton capture reactions on Mo isotopes relevant to the astrophysical p process NUCLEAR REACTIONS 92,94,96,97,98,100Mo(p, γ), E=2-6.2 MeV; measured Eγ, Iγ using 4π γ-summing detector; deduced γ-ray energy spectra, total σt, partial σgs and to metastable state σm and astrophysical S-factors St, Sgs, Sm vs E(cm); calculated σ's, S-factors vs E(cm) using TALYS-1.9 code; deduced nucleon-nucleus and α-particle-nucleus optical model parameters; deduced stellar reaction rates of (p, γ) reactions vs temperature, compared to BRUSLIB values.
doi: 10.1140/epja/i2019-12738-x
2016PR07 Nucl.Instrum.Methods Phys.Res. B386, 4 (2016) K.Preketes-Sigalas, A.Lagoyannis, M.Axiotis, H.W.Becker, V.Foteinou, S.Harissopulos, M.Kokkoris, G.Provatas PIGE related differential cross-section measurements of the 25Mg(p, p'γ)25Mg reaction NUCLEAR REACTIONS 25Mg(p, p'γ), E=2420-4550 keV; measured reaction products, Eγ, Iγ; deduced σ(θ). Comparison with available data.
doi: 10.1016/j.nimb.2016.08.020
2016RO18 Nucl.Instrum.Methods Phys.Res. B383, 81 (2016) C.Rothfuchs, N.Kukharchyk, T.Koppe, F.Semond, S.Blumenthal, H.-W.Becker, D.J.As, Hans C.Hofsass, A.D.Wieck, A.Ludwig Photoluminescence of gallium ion irradiated hexagonal and cubic GaN quantum dots
doi: 10.1016/j.nimb.2016.06.004
2014SC30 Phys.Rev. C 90, 065807 (2014) P.Scholz, A.Endres, A.Hennig, L.Netterdon, H.W.Becker, J.Endres, J.Mayer, U.Giesen, D.Rogalla, F.Schluter, S.G.Pickstone, K.O.Zell, A.Zilges Measurement of the 187Re(α, n)190Ir reaction cross section at sub-Coulomb energies using the Cologne Clover Counting Setup NUCLEAR REACTIONS 187Re(α, n)190Ir, E=12.4-14.1 MeV; measured Eγ, Iγ, γγ-coin, σ(E) by activation analysis using Cologne Clover counting setup at the cyclotron of PTB in Braunschweig. GEANT4-based Monte Carlo simulation. Comparison with statistical model calculations using the TALYS code and α optical-model potential. Relevance to γ-process nucleosynthesis.
doi: 10.1103/PhysRevC.90.065807
2013HA03 Phys.Rev. C 87, 025806 (2013) S.Harissopulos, A.Spyrou, A.Lagoyannis, M.Axiotis, P.Demetriou, J.W.Hammer, R.Kunz, H.-W.Becker Cross section measurements of proton capture reactions relevant to the p process: The case of 89Y(p, γ)90Zr and 121, 123Sb(p, γ)122, 124Te NUCLEAR REACTIONS 89Y, 121,123Sb(p, γ)90Zr/122Te/124Te, E=16-3.4 MeV; measured Eγ, Iγ, γ(θ), total σ(E), primary and secondary γ; deduced astrophysical S(E) factors, reaction rates, isomeric cross section ratios. 90Zr; deduced levels, J, π. 89Y(p, γ)90Zr, E=2, 3, 4, 4.8 MeV; measured Eγ, integrated σ(E) by 4π-summing method. Comparison with TALYS code calculations, and with previous studies.
doi: 10.1103/PhysRevC.87.025806
2012RO13 Phys.Rev. C 85, 045810 (2012) D.Robertson, J.Gorres, P.Collon, M.Wiescher, H.-W.Becker New measurement of the astrophysically important 40Ca(α, γ)44Ti reaction NUCLEAR REACTIONS 40Ca(α, γ)44Ti, E=3.0-4.6 MeV; measured Eγ, Iγ, σ(E). 44Ti; deduced α resonances, levels, resonance strengths, reaction rates of astrophysical interest. Comparison with previous studies and theoretical model calculations.
doi: 10.1103/PhysRevC.85.045810
2011SA48 Phys.Rev. C 84, 045808 (2011) A.Sauerwein, H.-W.Becker, H.Dombrowski, M.Elvers, J.Endres, U.Giesen, J.Hasper, A.Hennig, L.Netterdon, T.Rauscher, D.Rogalla, K.O.Zell, A.Zilges Determination of 141Prα, n)144Pm cross sections at energies of relevance for the astrophysical p process using the γγ coincidence method NUCLEAR REACTIONS 141Pr(α, n)144Pm, E=11-15 MeV; measured Eγ, Iγ, γγ-coin, σ(E) by activation method; deduced astrophysical S factors, α+nucleus optical-model potential. Comparison with Hauser-Feshbach statistical model calculations. 145Pm, 148Gd(γ, α); calculated astrophysical reaction rates. Limitations of the global predictions of α+nucleus optical potentials at astrophysically relevant energies.
doi: 10.1103/PhysRevC.84.045808
2010FO13 Eur.Phys.J. A 46, 161 (2010) K.Fortak, R.Kunz, L.Gialanella, H.-W.Becker, J.Meijer, F.Strieder The 198Au β- half-life in the metal Au revisited RADIOACTIVITY 198Au(β-) [from 197Au(n, γ), E not given]; measured reaction products, Eγ, Iγ; deduced T1/2 and uncertainties, lack of temperature variations.
doi: 10.1140/epja/i2010-11030-1
2010LI22 Phys.Rev. C 82, 015801 (2010) B.Limata, F.Strieder, A.Formicola, G.Imbriani, M.Junker, H.W.Becker, D.Bemmerer, A.Best, R.Bonetti, C.Broggini, A.Caciolli, P.Corvisiero, H.Costantini, A.DiLeva, Z.Elekes, Zs.Fulop, G.Gervino, A.Guglielmetti, C.Gustavino, Gy.Gyurky, A.Lemut, M.Marta, C.Mazzocchi, R.Menegazzo, P.Prati, V.Roca, C.Rolfs, C.Rossi Alvarez, C.Salvo, E.Somorjai, O.Straniero, F.Terrasi, H.-P.Trautvetter, for the LUNA Collaboration New experimental study of low-energy (p, γ) resonances in magnesium isotopes NUCLEAR REACTIONS 24Mg(p, γ)25Al, E=214 keV; 25Mg(p, γ)26Al, E=304 keV; 26Mg(p, γ)27Al, E=326 keV; measured Eγ, Iγ, resonance strengths and thick target yield curves at LUNA facility. 25,26,27Al; deduced levels, γ-ray branching ratios of primary γ rays from capture states.
doi: 10.1103/PhysRevC.82.015801
2008SP02 Phys.Rev. C 77, 065801 (2008) A.Spyrou, A.Lagoyannis, P.Demetriou, S.Harissopulos, H.-W.Becker Cross section measurements of (p, γ) reactions on Pd isotopes relevant to the p process NUCLEAR REACTIONS 104,105,106Pd(p, γ), E=2.6-7.2 MeV; measured Eγ, Iγ, σ; deduced excitation energies, astrophysical S-factors, reaction rates. Comparison with theoretical data. 102Pd(p, γ); comparison to model calculations.
doi: 10.1103/PhysRevC.77.065801
2007RA22 Eur.Phys.J. A 32, 51 (2007) F.Raiola, T.Spillane, B.Limata, B.Wang, S.Yan, M.Aliotta, H.W.Becker, J.Cruz, M.Fonseca, L.Gialanella, A.P.Jesus, K.U.Kettner, R.Kunze, H.Luis, J.P.Ribeiro, C.Rolfs, M.Romano, D.Schurmann, F.Strieder First hint on a change of the 210Po alpha-decay half-life in the metal Cu RADIOACTIVITY 210Po(α); measured Eα, Iα, T1/2 as a function of temperature by implanting Po ions in cooled metallic copper.
doi: 10.1140/epja/i2007-10012-8
2007SP01 Eur.Phys.J. A 31, 203 (2007) T.Spillane, F.Raiola, F.Zeng, H.W.Becker, L.Gialanella, K.U.Kettner, R.Kunze, C.Rolfs, M.Romano, D.Schurmann, F.Strieder The 198Au β- -half-life in the metal Au RADIOACTIVITY 198Au(β-); measured T1/2 for source in metallic environment; deduced temperature dependence.
doi: 10.1140/epja/i2006-10212-8
2007SP03 Phys.Rev.Lett. 98, 122501 (2007) T.Spillane, F.Raiola, C.Rolfs, D.Schurmann, F.Strieder, S.Zeng, H.-W.Becker, C.Bordeanu, L.Gialanella, M.Romano, J.Schweitzer 12C + 12C Fusion Reactions near the Gamow Energy NUCLEAR REACTIONS 12C(12C, p), (12C, α), E=2.1-4.75 MeV; measured Eγ, Iγ; deduced σ, astrophysical S-factors, resonance features.
doi: 10.1103/PhysRevLett.98.122501
2007SP04 Phys.Rev. C 76, 015802 (2007) A.Spyrou, H.-W.Becker, A.Lagoyannis, S.Harissopulos, C.Rolfs Cross-section measurements of capture reactions relevant to the p process using a 4π γ-summing method NUCLEAR REACTIONS 62Ni(α, γ), E=5, 9 MeV; 103Rh(p, γ), E=3, 5 MeV; measured Eγ, Iγ. Deduced total cross sections. Compared results to model calculations.
doi: 10.1103/PhysRevC.76.015802
2006KE03 J.Phys.(London) G32, 489 (2006) K.U.Kettner, H.W.Becker, F.Strieder, C.Rolfs High-Z electron screening: the cases 50V(p, n)50Cr and 176Lu(p, n)176Hf NUCLEAR REACTIONS 50V, 176Lu(p, n), E=0.75-1.55 MeV; measured thick-target yields in a variety of materials; deduced electron screening effects, resonance features.
doi: 10.1088/0954-3899/32/4/007
2006LI34 Eur.Phys.J. A 28, 251 (2006) B.Limata, F.Raiola, B.Wang, S.Yan, H.W.Becker, A.D'Onofrio, L.Gialanella, V.Roca, C.Rolfs, M.Romano, D.Schurmann, F.Strieder, F.Terrasi First hints on a change of the 22Na β+-decay half-life in the metal Pd RADIOACTIVITY 22Na(β+) [from 19F(α, n)]; measured T1/2 for source implanted in Pd metal; deduced shorter T1/2 due to environmental effects.
doi: 10.1140/epja/i2006-10057-1
2006RA19 Eur.Phys.J. A 27, Supplement 1, 79 (2006) F.Raiola, B.Burchard, Zs.Fulop, Gy.Gyurky, S.Zeng, J.Cruz, A.Di Leva, B.Limata, M.Fonseca, H.Luis, M.Aliotta, H.W.Becker, C.Broggini, A.D'Onofrio, L.Gialanella, G.Imbriani, A.P.Jesus, M.Junker, J.P.Ribeiro, V.Roca, C.Rolfs, M.Romano, E.Somorjai, F.Strieder, F.Terrasi Enhanced d(d, p)t fusion reaction in metals NUCLEAR REACTIONS 2H(d, p), E ≈ 4-23 keV; measured S-factors, electron screening effects for reactions in deuterated metals, temperature dependence.
doi: 10.1140/epja/i2006-08-011-0
2006WA21 Eur.Phys.J. A 28, 375 (2006) B.Wang, S.Yan, B.Limata, F.Raiola, M.Aliotta, H.W.Becker, J.Cruz, N.De Cesare, A.D'Onofrio, Z.Fulop, L.Gialanella, G.Gyurky, G.Imbriani, A.Jesus, J.P.Ribeiro, V.Roca, D.Rogalla, C.Rolfs, M.Romano, D.Schurmann, E.Somorjai, F.Strieder, F.Terrasi Change of the 7Be electron capture half-life in metallic environments RADIOACTIVITY 7Be(EC) [7Li(p, n)]; measured T1/2 for source implanted in Pd, In metals and Li2O insulator; deduced longer T1/2 due to environmental effects in the metals, no change in the insulator.
doi: 10.1140/epja/i2006-10068-x
2005CR05 Phys.Lett. B 624, 181 (2005) J.Cruz, Z.Fulop, G.Gyurky, F.Raiola, A.Di Leva, B.Limata, M.Fonseca, H.Luis, D.Schurmann, M.Aliotta, H.W.Becker, A.P.Jesus, K.U.Kettner, J.P.Ribeiro, C.Rolfs, M.Romano, E.Somorjai, F.Strieder, and the LUNA Collaboration Electron screening in 7Li(p, α)α and 6Li(p, α)3He for different environments NUCLEAR REACTIONS 7Li(p, α), E=30-100 keV; measured yields in various compounds; deduced electron screening effect, astrophysical S-factors.
doi: 10.1016/j.physletb.2005.08.036
2005HA49 Nucl.Phys. A758, 505c (2005) S.Harissopulos, A.Spyrou, A.Lagoyannis, Ch.Zarkadas, H.-W.Becker, C.Rolfs, F.Strieder, J.W.Hammer, A.Dewald, K.-O.Zell, P.von Brentano, R.Julin, P.Demetriou, S.Goriely Systematic measurements of proton- and alpha-capture cross sections relevant to the modelling of the p process NUCLEAR REACTIONS 92Mo(α, γ), E=9 MeV; 91Zr(α, γ), E=10.5 MeV; 118Sn(α, γ), E=11.5 MeV; measured Eγ, Iγ. 91Zr, 118Sn(α, γ), E(cm) ≈ 9-11 MeV; measured σ. Comparison with model predictions.
doi: 10.1016/j.nuclphysa.2005.05.092
2005HA56 J.Phys.(London) G31, S1417 (2005) S.Harissopulos, A.Lagoyannis, A.Spyrou, Ch.Zarkadas, S.Galanopoulos, G.Perdikakis, H.-W.Becker, C.Rolfs, F.Strieder, R.Kunz, M.Fey, J.W.Hammer, A.Dewald, K.-O.Zell, P.von Brentano, R.Julin, P.Demetriou Proton and alpha-particle capture reactions at sub-Coulomb energies relevant to the p process NUCLEAR REACTIONS 104Pd(p, γ), E(cm)=2-8 MeV; 118Sn(α, γ), E(cm)=10-11 MeV; measured Eγ, Iγ, σ. Comparison with model predictions.
doi: 10.1088/0954-3899/31/10/006
2005HA69 Phys.Rev. C 72, 062801 (2005) S.Harissopulos, H.W.Becker, J.W.Hammer, A.Lagoyannis, C.Rolfs, F.Strieder Cross section of the 13C(α, n)16O reaction: A background for the measurement of geo-neutrinos NUCLEAR REACTIONS 13C(α, n), E=0.8-8.0 MeV; measured σ, neutron yields.
doi: 10.1103/PhysRevC.72.062801
2005RA27 J.Phys.(London) G31, 1141 (2005) F.Raiola, B.Burchard, Z.Fulop, G.Gyurky, S.Zeng, J.Cruz, A.Di Leva, B.Limata, M.Fonseca, H.Luis, M.Aliotta, H.W.Becker, C.Broggini, A.D'Onofrio, L.Gialanella, G.Imbriani, A.P.Jesus, M.Junker, J.P.Ribeiro, V.Roca, C.Rolfs, M.Romano, E.Somorjai, F.Strieder, F.Terrasi, for the LUNA Collaboration Electron screening in d(d, p)t for deuterated metals: temperature effects NUCLEAR REACTIONS 2H(d, p), E ≈ 4-23 keV; measured S-factors, electron screening effects for reactions in deuterated metals, temperature dependence.
doi: 10.1088/0954-3899/31/11/002
2004RA05 Eur.Phys.J. A 19, 283 (2004) F.Raiola, L.Gang, C.Bonomo, G.Gyurky, M.Aliotta, H.W.Becker, R.Bonetti, C.Broggini, P.Corvisiero, A.D'Onofrio, Z.Fulop, G.Gervino, L.Gialanella, M.Junker, P.Prati, V.Roca, C.Rolfs, M.Romano, E.Somorjai, F.Strieder, F.Terrasi, G.Fiorentini, K.Langanke, J.Winter Enhanced electron screening in d(d, p)t for deuterated metals NUCLEAR REACTIONS 2H(d, p), E=low; measured yields in deuterated metals; deduced electron screening effect, astrophysical S-factors.
doi: 10.1140/epja/i2003-10125-0
2000HA62 Eur.Phys.J. A 9, 479 (2000) S.Harissopulos, C.Chronidou, K.Spyrou, T.Paradellis, C.Rolfs, W.H.Schulte, H.W.Becker The 27Al(p, γ)28Si Reaction: Direct capture cross-section and resonance strengths at Ep = 0.2-1.12 MeV NUCLEAR REACTIONS 27Al(p, γ), E=200-1155 keV; measured Eγ, Iγ, sum-energy, thick target yields, capture σ; deduced resonance strengths, astrophysical S-factors.
doi: 10.1007/s100500070006
1999BO29 Eur.Phys.J. A 5, 327 (1999) L.Borucki, H.W.Becker, F.Gorris, S.Kubsky, W.H.Schulte, C.Rolfs Hydrogen Doppler Spectroscopy using 15N Ions NUCLEAR REACTIONS 20,22Ne(p, γ), 4He(7Li, γ), (11B, γ), (14N, γ), (16O, γ), E not given; measured resonance γ-ray yields; deduced atomic, molecular beams energy spreads. 20Ne(p, p), (p, p'), E=3552 keV; measured proton spectra; deduced resonance features.
doi: 10.1007/s100500050291
1998BE71 Phys.Rev. B58, 11103 (1998) M.Berheide, W.H.Schulte, H.-W.Becker, L.Borucki, M.Buschmann, N.Piel, C.Rolfs, G.E.Mitchell, J.S.Schweitzer Average Kinetic Energy of Atoms in a Solid Measured with Resonant Nuclear Reactions NUCLEAR REACTIONS 21Ne(p, γ), E ≈ 272 keV; measured thick target yield curves; deduced target atoms average kinetic energy.
doi: 10.1103/PhysRevB.58.11103
1996PI15 Nucl.Instrum.Methods Phys.Res. B118, 186 (1996) N.Piel, W.H.Schulte, M.Berheide, H.W.Becker, L.Borucki, C.Grama, M.Mehrhoff, C.Rolfs Efficient γ-Ray Detection in Ion Beam Analysis NUCLEAR REACTIONS 29Si(p, γ), E=325, 420 MeV; measured Eγ, Iγ; deduced resonance yields.
doi: 10.1016/0168-583X(95)01453-5
1995BE29 Z.Phys. A351, 453 (1995) H.W.Becker, M.Bahr, M.Berheide, L.Borucki, M.Buschmann, C.Rolfs, G.Roters, S.Schmidt, W.H.Schulte, G.E.Mitchell, J.S.Schweitzer Hydrogen Depth Profiling using 18O Ions NUCLEAR REACTIONS, ICPND 1H(15N, α), E=6.58 MeV; 1H(18O, α), E=2.9 MeV; measured spectra. 18O(p, α), E ≈ 140-160 keV; calculated astrophysical S-factor vs E. 1H(15N, α), E ≈ 6.525-6.625 MeV; 1H(18O, α), E ≈ 2.85-2.95 MeV; measured yield ratio Iα/I(H) vs E. 16O, 19F deduced more accurate resonance parameters. 1H(18O, α), E ≈ 2.68-2.78 MeV; measured α-yield vs E. 1H(15N, α), E ≈ 6.36-6.48 MeV; measured γ yield vs E. Single stage accelerator technique, depth profiling applications.
doi: 10.1007/BF01291151
1994BA86 Nucl.Instrum.Methods Phys.Res. B85, 326 (1994) G.Battistig, G.Amsel, I.Trimaille, J.-J.Ganem, S.Rigo, F.C.Stedile, I.J.R.Baumvol, W.H.Schulte, H.W.Becker High Resolution Low Energy Resonance Depth Profiling of 18O in Near Surface Isotopic Tracing Studies NUCLEAR REACTIONS 18O(p, α), E ≈ resonance; measured σ(E); deduced Si oxidation processes features. Depth profiling of 18O, near surface isotopic training.
doi: 10.1016/0168-583X(94)95837-8
1994PR09 Z.Phys. A350, 171 (1994) P.Prati, C.Arpesella, F.Bartolucci, H.W.Becker, E.Bellotti, C.Broggini, P.Corvisiero, G.Fiorentini, A.Fubini, G.Gervino, F.Gorris, U.Greife, C.Gustavino, M.Junker, C.Rolfs, W.H.Schulte, H.P.Trautvetter, D.Zahnow Electron Screening in the d + 3He Fusion Reaction NUCLEAR REACTIONS, ICPND 2H(3He, p), E(cm)=5.4-31.3 keV; measured spectra, astrophysical S-factor; deduced electron screening potential. Windowless gas target system.
doi: 10.1007/BF01290685
1994ST13 Nucl.Instrum.Methods Phys.Res. B85, 248 (1994) F.C.Stedile, I.J.R.Baumvol, J.-J.Ganem, S.Rigo, I.Trimaille, G.Battistig, W.H.Schulte, H.W.Becker IBA Study of the Growth Mechanisms of Very Thin Silicon Oxide Films: The effect of wafer cleaning NUCLEAR REACTIONS 16,18O(α, α), E=1.8 MeV; measured Rutherford backscattering spectra; deduced very thin Si oxide films growth mechanisms features. Isotopic profiles from ion beam analysis methods.
doi: 10.1016/0168-583X(94)95821-1
1992BE35 Z.Phys. A343, 361 (1992) H.W.Becker, H.Ebbing, W.H.Schulte, S.Wustenbecker, M.Berheide, M.Buschmann, C.Rolfs, G.E.Mitchell, J.S.Schweitzer Low Energy Resonances in 21Ne(p, γ)22Na Examined with a High Energy Resolution Ion Beam NUCLEAR REACTIONS, ICPND 21Ne(p, γ), E ≈ resonance; measured γ yield. 22Na deduced resonance structure, widths. High energy resolution ion beam.
doi: 10.1007/BF01291537
1992SC08 Nucl.Instrum.Methods Phys.Res. B64, 383 (1992) W.H.Schulte, H.Ebbing, H.W.Becker, S.Wustenbecker, M.Berheide, M.Buschmann, C.Rolfs, G.E.Mitchell, J.S.Schweitzer Measurement and Analysis of Thin- and Thick-Target Yield Curves of Narrow Resonances with a High Energy Resolution Ion Beam NUCLEAR REACTIONS, ICPND 21Ne(p, γ), E ≈ resonance; measured γ yield curve; deduced atomic effects role. Thin, thick targets.
doi: 10.1016/0168-583X(92)95500-Q
1992SC27 Nucl.Instrum.Methods Phys.Res. B71, 291 (1992) W.H.Schulte, H.Ebbing, S.Wustenbecker, H.W.Becker, M.Berheide, M.Buschmann, C.Rolfs, G.E.Mitchell, J.S.Schweitzer High Energy Resolution Ion Beam Techniques for Novel Investigations in Nuclear, Atomic and Applied Physics Using Narrow Nuclear Resonances NUCLEAR REACTIONS, ICPND 23Na, 21Ne(p, γ), E ≈ resonance; measured γ yield vs E. High energy resolution ion beam techniques.
doi: 10.1016/0168-583X(92)95401-C
1992WU09 Z.Phys. A344, 205 (1992) S.Wustenbecker, H.W.Becker, H.Ebbing, W.H.Schulte, M.Berheide, M.Buschmann, C.Rolfs, G.E.Mitchell, J.S.Schweitzer Atomic Effects on α-α Scattering to the 8Be Ground State NUCLEAR REACTIONS 4He(α, α), E ≈ resonance; measured relative yield; deduced 8Be resonance splitting mechanism, astrophysical significance. Crossing beams technique.
1990GO25 Nucl.Phys. A517, 329 (1990) J.Gorres, S.Graff, M.Wiescher, R.E.Azuma, C.A.Barnes, H.W.Becker, T.R.Wang Proton Capture on 14C and Its Astrophysical Implications NUCLEAR REACTIONS, ICPND 14C(p, γ), E=250-740 KeV; measured γ-spectra, σ(E); deduced astrophysical S-factor vs E. 15N deduced resonances, γ-branching ratio, resonance strength.
doi: 10.1016/0375-9474(90)90038-N
1989WO09 Z.Phys. A334, 491 (1989) K.Wolke, V.Harms, H.W.Becker, J.W.Hammer, K.L.Kratz, C.Rolfs, U.Schroder, H.P.Trautvetter, M.Wiescher, A.Wohr Helium Buring of 22Ne NUCLEAR REACTIONS, ICPND 22Ne(α, γ), (α, nγ), E=0.71-2.25 MeV; measured σ(Eγ, E), γ yields, σ(En); deduced reaction rates. 26Mg deduced resonances, γ-branching ratios, J, π, transition strengths. Enriched gas target. Data from this article have been entered in the EXFOR database. For more information, access X4 datasetO1122. 1989WU03 Nucl.Instrum.Methods Phys.Res. B40/41, 413 (1989) S.Wustenbecker, W.H.Schulte, H.Ebbing, H.Baumeister, H.W.Becker, B.Cleff, C.Rolfs, H.P.Trautvetter, G.E.Mitchell, J.S.Schweitzer, C.A.Peterson Technical Improvements for High Resolution Ion Beam Experiments NUCLEAR REACTIONS 23Na(p, γ), E ≈ 309 keV; 27Al(p, γ), E ≈ 327 keV; measured thick target γ yield curve.
doi: 10.1016/0168-583X(89)91010-0
1989WU06 Nucl.Instrum.Methods Phys.Res. A279, 448 (1989) S.Wustenbecker, H.Ebbing, W.H.Schulte, H.Baumeister, H.W.Becker, B.Cleff, C.Rolfs, H.P.Trautvetter, G.E.Mitchell, J.S.Schweitzer, C.A.Peterson Improvements in Targetry and High Voltage Stability for High Resolution Ion Beam Experiments NUCLEAR REACTIONS 23Na(p, γ), E=0.309 MeV; 21Ne(p, γ), E ≈ 0.272 MeV; 26Mg(p, γ), E=0.338 MeV; 27Al(p, γ), E=0.327 MeV; measured thick target γ-yield vs E. High resolution ion beams, energies around resonances.
doi: 10.1016/0168-9002(89)91292-8
1988BR17 Z.Phys. A330, 167 (1988) K.Brehm, H.W.Becker, C.Rolfs, H.P.Trautvetter, F.Kappeler, W.Ratynski The Cross Section of 14N(n, p)14C at Stellar Energies and Its Role as a Neutron Poison for S-Process Nucleosynthesis NUCLEAR REACTIONS 14N(n, p), E ≈ 25, 52.4 keV; measured σ(Ep), proton yield; deduced absolute <σ>, reaction rates, role in s-process nucleosynthesis. Data from this article have been entered in the EXFOR database. For more information, access X4 dataset22078. 1988HI06 Z.Phys. A329, 243 (1988) M.Hilgemeier, H.W.Becker, C.Rolfs, H.P.Trautvetter, J.W.Hammer Absolute Cross Section of the 3He(α, γ)7Be Reaction NUCLEAR REACTIONS, ICPND 3He(α, γ), E(cm)=195-686 keV; measured σ(E); deduced astrophysical S(E) factor. Windowless gas targets, beam calorimeter, Ge detectors. Data from this article have been entered in the EXFOR database. For more information, access X4 datasetA1289. 1988SE09 Nucl.Instrum.Methods Phys.Res. A272, 814 (1988) S.Seuthe, H.W.Becker, C.Rolfs, S.Schmidt, H.P.Trautvetter, R.W.Kavanagh, F.B.Waanders Construction and Properties of a Gamma-Ray Detector Based on D(γ, n)H Neutron Counting NUCLEAR REACTIONS 27Al(p, γ), E ≈ 200-450 keV; 19F(p, αγ), E ≈ 750-1000 keV; measured γ yields. 28Si levels deduced resonance strength. Neutron counting based γ-detector. RADIOACTIVITY 60Co(β-); measured γ yields. 60Ni deduced hexadecapole transition strength. Neutron counting based γ-detector.
doi: 10.1016/0168-9002(88)90763-2
1988TI01 Nucl.Phys. A477, 105 (1988) R.Timmermann, H.W.Becker, C.Rolfs, U.Schroder, H.P.Trautvetter Search for Low-Energy Resonances in 27Al(p, α)24Mg NUCLEAR REACTIONS, ICPND 27Al(p, α), E=200-360 keV; measured σ(E(α)). 27Al(p, γ), E=200-360 keV; measured thick target γ-yields; deduced astrophysical reaction rates. 28Si deduced resonance strengths. Targets of low boron contamination.
doi: 10.1016/0375-9474(88)90363-6
1987BE17 Z.Phys. A327, 341 (1987) H.W.Becker, C.Rolfs, H.P.Trautvetter Low-Energy Cross Sections for 11B(p, 3α) NUCLEAR REACTIONS, ICPND 11B(p, 3α), E(cm)=22-1100 keV; measured Eα, Iα, σ(E, θ), σ(E, θ(α1), θ(α2)), α-yield vs Eα. 11B(p, α), E=140-1100 keV; measured α yield vs θ, σ(θ). 1H(11B, α), E=1.68-13.2 MeV; measured σ(E); deduced absolute σ, astrophysical S(E) factor. 12C deduced resonance, Γ. Solid, windowless gas targets, Si detectors, kinematically complete experiment. Data from this article have been entered in the EXFOR database. For more information, access X4 datasetA0413. 1987KR09 Nucl.Phys. A467, 273 (1987) A.Krauss, H.W.Becker, H.P.Trautvetter, C.Rolfs Astrophysical S(E) Factor of 3He(3He, 2p)4He at Solar Energies NUCLEAR REACTIONS, ICPND 3He(3He, 2p), E(cm)=17.9-342.5 keV; measured σ(E, θ); deduced reaction σ, astrophysical factor S(E). Windowless gas targets, beam calorimeter, cosmic background rejection, electronic shielding.
doi: 10.1016/0375-9474(87)90530-6
1987KR18 Nucl.Phys. A465, 150 (1987) A.Krauss, H.W.Becker, H.P.Trautvetter, C.Rolfs, K.Brand Low-Energy Fusion Cross Sections of D + D and D + 3He Reactions NUCLEAR REACTIONS, ICPND 2H(d, n), (d, p), E(cm)=2.98-162.5 keV; 3He(d, p), E(cm)=6.95-141.8 keV; measured σ(E, θ); deduced reaction σ, astrophysical S(E) factor. Windowless gas targets, beam calorimeter.
doi: 10.1016/0375-9474(87)90302-2
1987PL03 Nucl.Phys. A465, 291 (1987) R.Plaga, H.W.Becker, A.Redder, C.Rolfs, H.P.Trautvetter, K.Langanke The Scattering of Alpha Particles from 12C and the 12C(α, γ)16O Stellar Reaction Rate NUCLEAR REACTIONS, ICPND 12C(α, α0), E=1-66 MeV; measured σ(E, θ); deduced astrophysical S-factor vs E, capture σ. 16O deduced level parameters. Enriched 12C targets.
doi: 10.1016/0375-9474(87)90436-2
1987RE02 Nucl.Phys. A462, 385 (1987) A.Redder, H.W.Becker, C.Rolfs, H.P.Trautvetter, T.R.Donoghue, T.C.Rinckel, J.W.Hammer, K.Langanke The 12C(α, γ)16O Cross Section at Stellar Energies NUCLEAR REACTIONS, ICPND 12C(α, γ), E=0.94-2.84 MeV; measured Eγ, Iγ, σ(E), σ(E, E(γ), θ); deduced astrophysical S-factor. Implanted 12C targets, NaI(Tl), Ge detectors.
doi: 10.1016/0375-9474(87)90555-0
1987SC10 Nucl.Phys. A467, 240 (1987) U.Schroder, H.W.Becker, G.Bogaert, J.Gorres, C.Rolfs, H.P.Trautvetter, R.E.Azuma, C.Campbell, J.D.King, J.Vise Stellar Reaction Rate of 14N(p, γ)15O and Hydrogen Burning in Massive Stars NUCLEAR REACTIONS, ICPND 14N(p, γ), E=0.2-3.6 MeV; measured σ(E, E(γ), θ(γ)); deduced astrophysical S-factor, capture σ . 15O deduced levels, J, π, Γ, spectroscopic factors. Windowless gas, implanted 14N targets. Ge(Li) detectors.
doi: 10.1016/0375-9474(87)90528-8
1987SE13 Nucl.Instrum.Methods Phys.Res. A260, 33 (1987) S.Seuthe, H.W.Becker, A.Krauss, A.Redder, C.Rolfs, U.Schroder, H.P.Trautvetter, K.Wolke, S.Wustenbecker, R.W.Kavanagh, F.B.Waanders Production and Properties of Implanted Targets NUCLEAR REACTIONS, ICPND 12C(p, γ), E=220-340 keV; 12C(α, γ), E=2.65-2.85 MeV; 14N(p, γ), E=260-360 keV; 20Ne(p, γ), E=1165-1185 keV; 23Na(p, γ), E=300-400 keV; measured γ-ray yields. Implanted targets.
doi: 10.1016/0168-9002(87)90385-8
1987WU04 Nucl.Instrum.Methods Phys.Res. A256, 9 (1987) S.Wustenbecker, H.W.Becker, C.Rolfs, H.P.Trautvetter, K.Brand, G.E.Mitchell, J.S.Schweitzer Technical Developments for Ion Beams with High Energy Resolution NUCLEAR REACTIONS 27Al(p, γ), E ≈ 992 keV; 20Ne, 18O(p, γ), E ≈ 1167 keV; measured γ-yields; deduced beam energy stability, oscillator frequency dependences.
doi: 10.1016/0168-9002(87)91034-5
1986TR02 Z.Phys. A323, 1 (1986) H.P.Trautvetter, H.W.Becker, U.Heinemann, L.Buchmann, C.Rolfs, F.Kappeler, M.Baumann, H.Freiesleben, H.-J.Lutke-Stetzkamp, P.Geltenbort, F.Gonnenwein Destruction of 26Al in Explosive Nucleosynthesis NUCLEAR REACTIONS 7Li(p, n), E=1.911, 2.105 MeV; 3H(p, n), E=1.125 MeV; measured En, σ(φn); 6Li(n, α), 26Al(n, p), E=40 meV-0.31 MeV; measured Ep, Ip, Iα, Ip(E); deduced astrophysical reaction rate. Artificially produced 26Al, natural Li, enriched 3H targets, surface barrier detectors. Data from this article have been entered in the EXFOR database. For more information, access X4 dataset22712. 1985RE09 Phys.Rev.Lett. 55, 1262 (1985) A.Redder, H.W.Becker, J.Gorres, M.Hilgemeier, A.Krauss, C.Rolfs, U.Schroder, H.P.Trautvetter, K.Wolke, T.R.Donoghue, T.C.Rinckel, J.W.Hammer Capture Amplitudes in the Reaction 12C(α, γ)16O at Stellar Energies NUCLEAR REACTIONS 12C(α, γ), E(cm)=1.7-2.8 MeV; measured Eγ, Iγ, γ(θ); deduced nonnegligible E2 contribution to reaction rate at stellar energies, capture σ(E1)/σ(E2).
doi: 10.1103/PhysRevLett.55.1262
1983GO21 Nucl.Phys. A408, 372 (1983) J.Gorres, H.W.Becker, L.Buchmann, C.Rolfs, P.Schmalbrock, H.P.Trautvetter, A.Vlieks, J.W.Hammer, T.R.Donoghue Proton-Induced Direct Capture on 21Ne and 22Ne NUCLEAR REACTIONS, ICPND 22Ne(p, p), E=0.6-1.6 MeV; measured σ(θ=145°)/σ(Rutherford) vs E. 21,22Ne(p, γ), E=0.3-1.6 MeV; measured Eγ, Iγ, σ(E, θγ); deduced direct capture σ, astrophysical reaction rates. 22Na resonances deduced γ transition strength. 23Na levels deduced spectroscopic factors, γ transition strength. Extended quasipoint jet gas targets, Ge(Li) detectors.
doi: 10.1016/0375-9474(83)90588-2
1983SC10 Z.Phys. A310, 243 (1983) P.Schmalbrock, H.W.Becker, L.Buchmann, J.Gorres, C.Rolfs, H.P.Trautvetter, W.S.Rodney Search for γ-Ray Transitions within the 5Li Groundstate NUCLEAR REACTIONS 4He(p, p'γ), E=1.5-7 MeV; measured σ(Ep'), Eγ, Iγ; deduced no 5Li decay.
doi: 10.1007/BF01415229
1983SC17 Nucl.Phys. A398, 279 (1983) P.Schmalbrock, H.W.Becker, L.Buchmann, J.Gorres, K.U.Kettner, W.E.Kieser, H.Krawinkel, C.Rolfs, H.P.Trautvetter, J.W.Hammer, R.E.Azuma Stellar Reaction Rate of 20Ne(α, γ)24Mg NUCLEAR REACTIONS, ICPND 20Ne(α, γ), E=0.55-3.2 MeV; measured Eγ, Iγ(E, θ); deduced astrophysical reaction rate, S-factor of capture σ. 24Mg deduced levels, absolute γ-transition strengths, Γ, J, π, T, δ, γ-branching ratios. Windowless gas targets of the extended and jet type, enriched 20Ne gas, Ge(Li) detectors.
doi: 10.1016/0375-9474(83)90488-8
1982BE29 Z.Phys. A305, 319 (1982) H.W.Becker, W.E.Kieser, C.Rolfs, H.P.Trautvetter, M.Wiescher Resonances Strengths of Some Light Nuclei NUCLEAR REACTIONS, ICPND 1H(19F, αγ), E=6.42, 16.44 MeV; measured σ, absolute γ-transition strength. 1H(18O, γ), E=2.7, 20.88 MeV; 1H(14N, γ), E=3.86 MeV; 4He(14N, γ), E=5.62 MeV; measured absolute γ-transition strength. 1H(16O, γ), E=14.4 MeV; measured σ. Extended, jet type gas targets, Ge(Li) detectors.
doi: 10.1007/BF01419080
1982KE10 Z.Phys. A308, 73 (1982) K.U.Kettner, H.W.Becker, L.Buchmann, J.Gorres, H.Krawinkel, C.Rolfs, P.Schmalbrock, H.P.Trautvetter, A.Vlieks The 4He(12C, γ)16O Reaction at Stellar Energies NUCLEAR REACTIONS, ICPND 4He(12C, 12C), E=5.6-13.7 MeV; measured σ(E, θ). 16O resonance deduced parameters. 4He(12C, γ), E(cm)=1.44-3.38 MeV; measured capture σ, σ(E, E(γ)), Eγ, Iγ; deduced astrophysical S-factor, reaction mechanism. 16O resonances deduced Γγ, α-reduced widths.
doi: 10.1007/BF01415851
1982KR05 Z.Phys. A304, 307 (1982) H.Krawinkel, H.W.Becker, L.Buchmann, J.Gorres, K.U.Kettner, W.E.Kieser, R.Santo, P.Schmalbrock, H.P.Trautvetter, A.Vlieks, C.Rolfs, J.W.Hammer, R.E.Azuma, W.S.Rodney The 3He(α, γ)7Be Reaction and the Solar Neutrino Problem NUCLEAR REACTIONS 3He(α, γ), E(cm)=107-1266 keV; measured σ(E, Eγ, θγ), σ(absolute). 3He(α, α), E=0.2-3 MeV; measured yield vs E; deduced astrophysical S-factor vs E. Ge(Li) detectors, extended, quasipoint jet gas targets. Data from this article have been entered in the EXFOR database. For more information, access X4 datasetA1205. 1982RE06 Z.Phys. A305, 325 (1982) A.Redder, H.W.Becker, H.Lorenz-Wirzba, C.Rolfs, P.Schmalbrock, H.P.Trautvetter The 15N(p, α0)12C Reaction at Stellar Energies NUCLEAR REACTIONS 15N(p, α), E=78-810 keV; measured σ(E, θ); deduced astrophysical S-factor. 16O resonances deduced Γ, Γp, Γα.
doi: 10.1007/BF01419081
1981BE60 Z.Phys. A303, 305 (1981) H.W.Becker, K.U.Kettner, C.Rolfs, H.P.Trautvetter The 12C + 12C Reaction at Sub-Coulomb Energies (II) NUCLEAR REACTIONS 12C(12C, p), (12C, α), E(cm)=2.8-6.3 MeV; measured σ(θ, E); deduced astrophysical factor (S) exit channel dependence.
doi: 10.1007/BF01421528
1980BU14 Z.Phys. A296, 273 (1980) L.Buchmann, H.W.Becker, K.U.Kettner, W.E.Kieser, P.Schmalbrock, C.Rolfs Stellar Reaction Rate of 26Mg(p, γ)27Al NUCLEAR REACTIONS 26Mg(p, γ), E=80-355 keV; measured Eγ, Iγ(θ), Q, σ(Eγ, E). 27Al deduced levels, resonance strengths, γ-branching ratios, δ, Γ, J, π, IAS, astrophysical reaction rates. Enriched target, Ge(Li) detector.
doi: 10.1007/BF01415841
1980WI17 Nucl.Phys. A349, 165 (1980) M.Wiescher, H.W.Becker, J.Gorres, K.-U.Kettner, H.P.Trautvetter, W.E.Kieser, C.Rolfs, R.E.Azuma, K.P.Jackson, J.W.Hammer Nuclear and Astrophysical Aspects of 18O(p, γ)19F NUCLEAR REACTIONS 18O(p, γ), E=80-2200 keV; measured Ep, Eγ, Iγ(E, θ). 19F deduced levels, absolute γ-transition strength, Γ, J, π, δ, γ-branching ratios, S, astrophysical reaction rate. Enriched target, Ge(Li) detectors.
doi: 10.1016/0375-9474(80)90451-0
1979EL11 Z.Phys. A293, 261 (1979) K.Elix, H.W.Becker, L.Buchmann, J.Gorres, K.U.Kettner, M.Wiescher, C.Rolfs Search for Low-Energy Resonances in 25Mg(p, γ)26Al NUCLEAR REACTIONS 25Mg(p, γ), E=80-350 keV; measured σ(E), Q, Iγ(θ). 26Al deduced levels, resonance strengths, γ-ray branching ratios, Γ, J, π, astrophysical reaction rate. Enriched 25Mg targets. Ge(Li) detector.
doi: 10.1007/BF01435595
1978TR08 S.Afr.J.Phys. 1, 206 (1978) H.P.Trautvetter, H.W.Becker, G.Hulke, K.U.Kettner, C.Rolfs, P.Schmalbrock Experimental Studies of Heavy-Ion Reactions Far below the Coulomb Barrier NUCLEAR REACTIONS 12C(12C, X), E(cm)=2.8-6.3 MeV; 20Ne(12C, X), E(cm)=6-13 MeV; measured σ(fragment, θ); deduced σ(fusion), astrophysical S-factor.
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