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Feasibility of low-energy radiative-capture experiments at the LUNA underground accelerator facility
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, IT. 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 2H(p, gamma )3He and 14N(p, gamma )15O 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.
Feasibility of low-energy radiative-capture experiments at the LUNA underground accelerator facility
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, IT. 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 2H(p, gamma )3He and 14N(p, gamma )15O 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.
Feasibility of low-energy radiative-capture experiments at the LUNA underground accelerator facility
Bemmerer, D. (Autor:in) / Confortola, F. (Autor:in)
The European Physical Journal / A ; 24 ; 313-319
2005
7 Seiten
Aufsatz (Zeitschrift)
Englisch
Astrophysik , Betriebsanlage , Atomreaktion , Elektrostatik , Maximum , elektrische Spannung , fester Körper , Gas , Target , Peak , Germanium , Bismut , Germanat , Vorkommnis , Protonenstrahl , Gamma-Quant , Ausführbarkeit , Arbeit (Physik) , Experiment , unterirdische Anlage , Chalkogene , Edelgas , Einfang , Helium , Nichtmetalle , Sauerstoff , Produkt , Produktionseinheit , chemisches Element , ionisierende Strahlung , radioaktive Strahlung
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