Ultra-sensitive in-beam $ gamma$ -ray spectroscopy for nuclear astrophysics at LUNA

Ultra-sensitive in-beam $ gamma$ -ray spectroscopy for nuclear astrophysics at LUNA
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用于 LUNA 核天体物理的超灵敏束内 $gamma$ 射线光谱

DOI：
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发表时间：
2008
期刊：
影响因子：
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通讯作者：
The Luna Collaboration
The Luna Collaboration
中科院分区：
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文献类型：
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作者：
A. Caciolli;L. Agostino;D. Bemmerer;R. Bonetti;C. Broggini;F. Confortola;P. Corvisiero;H. Costantini;Z. Elekes;A. Formicola;Z. Fülöp;G. Gervino;A. Guglielmetti;C. Gustavino;G. Gyürky;G. Imbriani;M. Junker;M. Laubenstein;A. Lemut;B. Limata;M. Marta;C. Mazzocchi;R. Menegazzo;P. Prati;V. Roca;C. Rolfs;C. Rossi Alvarez;E. Somorjai;O. Straniero;F. Strieder;F. Terrasi;H. Trautvetter;The Luna Collaboration

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核天体物理的超灵敏束内伽马射线光谱研究是在位于意大利格兰萨索实验室地下深处的400千伏月球（地下核天体物理实验室）加速器上进行的。由于特殊构造的被动屏蔽，月球上的实验室$ γ $射线背景（$ensuremath E_{gamma}$ < 3 MeV）已降低到可与专用离线地下$ gamma$计数装置相媲美的水平。本文研究了入射α光束所产生的γ射线背景。这些数据被用来评估在月球上进行敏感的光束内实验的可行性，并进一步推广到类似的拟议设施。
Ultra-sensitive in-beam $ gamma$ -ray spectroscopy studies for nuclear astrophysics are performed at the LUNA (Laboratory for Underground Nuclear Astrophysics) 400 kV accelerator, deep underground in Italy’s Gran Sasso laboratory. By virtue of a specially constructed passive shield, the laboratory $ gamma$ -ray background for $ensuremath E_{gamma}$ < 3 MeV at LUNA has been reduced to levels comparable to those experienced in dedicated offline underground $ gamma$ -counting setups. The $ gamma$ -ray background induced by an incident $ alpha$ -beam has been studied. The data are used to evaluate the feasibility of sensitive in-beam experiments at LUNA and, by extension, at similar proposed facilities.