期刊
EUROPEAN PHYSICAL JOURNAL A
卷 24, 期 2, 页码 313-319出版社
SPRINGER
DOI: 10.1140/epja/i2004-10135-4
关键词
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The LUNA (Laboratory Underground for Nuclear Astrophysics) facility has been designed to study nuclear reactions of astrophysical interest. It is located deep underground in the Gran Sasso National Laboratory; Italy. Two electrostatic accelerators; with 50 and 400 kV maximum voltage, in combination with solid and gas target setups allowed to measure the total cross-sections of the radiative-capture reactions H-2(p, gamma)He-3 and N-14(p, gamma)O-15 within their relevant Gamow peaks. We report on the gamma background in the Gran Sasso laboratory measured by germanium and bismuth germanate detectors, with and without an incident proton beam. A method to localize the sources of beam-induced background using the Doppler shift of emitted gamma rays is presented. The feasibility of radiative-capture studies at energies of astrophysical interest is discussed for several experimental scenarios.
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