Au197(n,γ) cross section in the resonance region

Abstract

C. MASSIMI et al.PHYSICAL REVIEW C 81, 044616 (2010) The (n,γ ) cross section of 197 Au has been measured at n TOF in the resolved resonance region, up to 5 keV, with the aim of improving the accuracy in an energy range where it is not yet considered standard. The measurements were performed with two different experimental setup and detection techniques, the total energy method based on C 6 D 6 detectors, and the total absorption calorimetry based on a 4π BaF 2 array. By comparing the data collected with the two techniques, two accurate sets of neutron-capture yields have been obtained, which could be the basis for a new evaluation leading to an extended cross-section standard. Overall good agreement is found between the n TOF results and evaluated cross sections, with some significant exceptions for small resonances. A few resonances not included in the existing databases have also been observed.

Accelerator mass spectrometry measurements of theC13(n,γ)C14andWallner1, Bichler2, Buczak3 et al. 2016Phys. Rev. CSelf Cite281170View full textAdd to dashboardCite

“…Between kT = 5 and 50 keV it was derived by the weighted average of recent measurements at GELINA [25] and n TOF [26,27] and between kT = 60−100 keV by the average of the evaluated cross sections from the data libraries JEFF-3.2, JENDL-4.0, ENDF/B-VII.1 [28][29][30]. This choice is in perfect agreement with a new activation measurement by the group in Sevilla [31].…”

“…The VERA facility AMS was introduced to laboratory experiments in nuclear astrophysics already in 1980 by Paul et al [32] with a first study of the 25 Mg(p,n) 26 Al reaction. In particular, the past few years have seen an increasing number of nuclear astrophysics measurements with the AMS technique for charged particle and neutron induced reactions (see, e.g., [33][34][35][36][37][38][39][40][41]).…”

“…Therefore, AMS offers a highly sensitive and complementary tool for cross-section measurements of nuclear reactions leading to radioactive nuclides, independent of their half-lives or decay patterns. The list of reaction products of interest for astrophysics includes radioisotopes over the entire mass range, e.g., 10 Be, 14 C, 26 Al, 36 Cl, 41 Ca, 55 244 Pu. The present AMS measurements have been performed at the Vienna Environmental Research Accelerator (VERA) which represents a state-of-the-art AMS facility based on a 3-MV tandem [42,43].…”

Present status and future programs of the n_TOF experiment

“…Cortés-Giraldo 13) , M. Diakaki 14) , I. Dillmann 15) , C. Domingo-Pardo 16) , I. Duran 17) , N. Dzysiuk 18) , C. Eleftheriadis 19) , M. Fernández-Ordóñez 7) , A. Ferrari 1) , K. Fraval 9) , S. Ganesan 20) , G. Giubrone 21) , M.B. Gómez-Hornillos 11) , I.F.…”

“…Jenkins 22) , E. Jericha 2) , Y. Kadi 1) , F. Käppeler 23) , D. Karadimos 24) , M. Kokkoris 14) , M. Krtička 8) , J. Kroll 8) , C. Lederer 25) , H. Leeb 2) , L.S. Leong 4) , R. Losito 1) , M. Lozano 13) , A. Manousos 19) , J. Marganiec 3) , T. Martinez 7) , C. Massimi 26) , P.F. Mastinu 18) , M. Mastromarco 6) , M. Meaze 6) , E. Mendoza 7) , A. Mengoni 27) , P.M. Milazzo 28) , M. Mirea 5) , C. Paradela 17) , A. Pavlik 25) , J. Perkowski 3) , J. Praena 13) , J.M.…”