Physics – Nuclear Physics – Nuclear Experiment
Scientific paper
2005-02-03
Eur.Phys.J. A24 (2005) 313-319
Physics
Nuclear Physics
Nuclear Experiment
Submitted to Eur. Phys. J. A
Scientific paper
10.1140/epja/i2004-10135-4
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 $^2$H(p,$\gamma$)3He and $^{14}$N(p,$\gamma$)$^{15}$O 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.
Alvarez Rossi C.
Bemmerer Daniel
Bonetti Roberto
Broggini Carlo
Confortola Fulvia
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