Comparison of the LUNA 3He(alpha,gamma)7Be activation results with earlier measurements and model calculations
Gy. Gyurky, D. Bemmerer, F. Confortola, H. Costantini, A. Formicola, R. Bonetti, C. Broggini, P. Corvisiero, Z. Elekes, Zs. Fulop, G. Gervino, A. Guglielmetti, … 展开作者
Gy. Gyurky, D. Bemmerer, F. Confortola, H. Costantini, A. Formicola, R. Bonetti, C. Broggini, P. Corvisiero, Z. Elekes, Zs. Fulop, G. Gervino, A. Guglielmetti, C. Gustavino, G. Imbriani, M. Junker, M. Laubenstein, A. Lemut, B. Limata, V. Lozza, M. Marta, R. Menegazzo, P. Prati, V. Roca, C. Rolfs, C. Rossi Alvarez, E. Somorjai, O. Straniero, F. Strieder, F. Terrasi, H. P. Trautvetter
Recently, the LUNA collaboration has carried out a high precision measurement on the 3He(alpha,gamma)7Be reaction cross section with both activation and on-line gamma-detection methods at unprecedented low energies. In this paper the results obtained with the activation method are summarized. The results are compared with previous activation experiments and the zero energy extrapolated astrophysical S factor is determined using different theoretical models.
Neutron-induced background by an alpha-beam incident on a deuterium gas target and its implications for the study of the 2H(alpha,gamma)6Li reaction at LUNA
Influence of secondary neutrons on alpha-particle induced reaction cross section measurement below the Coulomb barrier
International Atomic Energy Agency(国际原子能机构);The University of Osaka(大阪大学);RIKEN(理化学研究所);High Energy Accelerator Research Organization (KEK)(高能加速器研究机构);The Graduate University for Advanced Studies (SOKENDAI)(综合研究大学院大学);Hokkaido University(北海道大学)
Investigation of alpha-induced reactions on 127I for the astrophysical gamma process
为了给天体物理γ过程的模拟提供截面数据,用活化技术研究了α-诱发的~(127)I反应。精确测量了536.1keV γ跃迁的相对强度,其不确定度由13%降低到4%。通过测量特征X射线的产额,首次确定了127 I(α,γ)~(131)Cs反应的截面接近天体物理相关的能量区域,能量为9.50 <Ec. m。< 15.15由于反应模型的改进,$ MeV. The 127I(alpha,n)130Cs reaction was studied in the range 9.62 < Ec.m. < 15.15 MeV by measuring the yield of the 536.1 keV gamma-ray and at the lower part of this energy range by counting the characteristic X-rays. A comparison of the resulting cross sections to predictions of statistical model calculations confirmed the predictions of the astrophysically relevant averaged alpha width. Nevertheless, the newly derived stell…
Energy dependence of isomeric ratios for alpha-particle-induced reactions on natural platinum up to 50 MeV studied by simultaneous decay curve analysis
The 3He(α,γ)7Be γ-ray angular distribution: measured, and calculated by effective field theory
Technische Universität Dresden(德累斯顿工业大学);Helmholtz-Zentrum Dresden-Rossendorf (HZDR)(德累斯顿-罗斯多夫亥姆霍兹中心);Facility for Rare Isotope Beams(稀有同位素束流设施);Michigan State University(密歇根州立大学);Dipartimento di Fisica dell’Università di Padova(帕多瓦大学物理系);Istituto Nazionale di Fisica Nucleare, Sezione di Padova(意大利国家核物理研究所帕多瓦分部)