Measurement of 25Mg(p, γ)26Alg resonance strengths via accelerator mass spectrometry

被引：32
作者：
Arazi, A.
Faestermann, T.
Niello, J. O. Fernandez
Knie, K.
Korschinek, G.
Poutivtsev, M.
Richter, E.
Rugel, G.
Wallner, A.
机构：
[1] Comis Nacl Energia Atom, Lab TANDAR, RA-1429 Buenos Aires, DF, Argentina
[2] Tech Univ Munich, D-85748 Garching, Germany
[3] Rossendorf Inc, Forschungszentrum Rossendorf EV, D-01314 Dresden, Germany
[4] Univ Vienna, Inst Isotopenforsch & Kernphys, Vienna Environm Res Accelerator, A-1090 Vienna, Austria
来源：
PHYSICAL REVIEW C | 2006年 / 74卷 / 02期
关键词：
D O I：
10.1103/PhysRevC.74.025802
中图分类号：
O57 [原子核物理学、高能物理学];
学科分类号：
070202 ;
摘要：
The strengths of resonances located at center-of-mass energies of E-c.m.=189, 304, 374, and 418 keV for the Mg-25(p,gamma) reaction have been measured for the first time with an off-line method: Mg targets were firstly activated with protons at the resonance energies and the produced Al-26(g) nuclei were counted by means of highly sensitive accelerator mass spectrometry (AMS). Thus, the production of Al-26 in its ground state is determined independently from the gamma-decay branching ratio. While the 304, 374, and 418 keV resonances show fair agreement with previous measurements, the 189 keV resonance yield a significantly less strength. In addition, an experimental upper limit for the E-c.m.=92 keV resonance was determined.
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页数：6
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