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Feasibility of low-energy radiative-capture experiments at the LUNA underground accelerator facility

  • D. Bemmerer Email author
  • F. Confortola
  • A. Lemut
  • R. Bonetti
  • C. Broggini
  • P. Corvisiero
  • H. Costantini
  • J. Cruz
  • A. Formicola
  • Zs. Fülöp
  • G. Gervino
  • A. Guglielmetti
  • C. Gustavino
  • Gy. Gyürky
  • G. Imbriani
  • A. P. Jesus
  • M. Junker
  • B. Limata
  • R. Menegazzo
  • P. Prati
  • V. Roca
  • D. Rogalla
  • C. Rolfs
  • M. Romano
  • C. Rossi Alvarez
  • F. Schümann
  • E. Somorjai
  • O. Straniero
  • F. Strieder
  • F. Terrasi
  • H. P. Trautvetter
  • A. Vomiero
Original Article

Abstract.

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 ^2H2H(p, γ)^3He3Heand ^14N14N(p, γ)^15O15Owithin 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.

PACS.

25.40.Lw Radiative capture 26.20.+f Hydrostatic stellar nucleosynthesis 29.17.+w Electrostatic, collective, and linear accelerators 29.30.Kv X- and γ-ray spectroscopy 

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Copyright information

© Società Italiana di Fisica and Springer-Verlag 2005

Authors and Affiliations

  • D. Bemmerer
    • 1
    • 13
    Email author
  • F. Confortola
    • 2
  • A. Lemut
    • 2
  • R. Bonetti
    • 3
  • C. Broggini
    • 1
  • P. Corvisiero
    • 2
  • H. Costantini
    • 2
  • J. Cruz
    • 4
  • A. Formicola
    • 5
  • Zs. Fülöp
    • 6
  • G. Gervino
    • 7
  • A. Guglielmetti
    • 3
  • C. Gustavino
    • 5
  • Gy. Gyürky
    • 6
  • G. Imbriani
    • 8
  • A. P. Jesus
    • 4
  • M. Junker
    • 5
  • B. Limata
    • 8
  • R. Menegazzo
    • 1
    • 9
  • P. Prati
    • 2
  • V. Roca
    • 8
  • D. Rogalla
    • 10
  • C. Rolfs
    • 11
  • M. Romano
    • 8
  • C. Rossi Alvarez
    • 1
  • F. Schümann
    • 11
  • E. Somorjai
    • 6
  • O. Straniero
    • 12
  • F. Strieder
    • 11
  • F. Terrasi
    • 10
  • H. P. Trautvetter
    • 11
  • A. Vomiero
    • 9
  1. 1.INFN, Sezione di PadovaPadovaItaly
  2. 2.Dipartimento di FisicaUniversità di Genova, and INFNGenovaItaly
  3. 3.Istituto di FisicaUniversità di Milano, and INFNMilanoItaly
  4. 4.Centro de Fisica Nuclear da Universidade de LisboaLisboaPortugal
  5. 5.Laboratori Nazionali del Gran SassoINFNAssergi (AQ)Italy
  6. 6.ATOMKIDebrecenHungary
  7. 7.Dipartimento di Fisica SperimentaleUniversità di Torino, and INFNTorinoItaly
  8. 8.Dipartimento di Scienze FisicheUniversità di Napoli “Federico II”, and INFN, Sezione di NapoliNapoliItaly
  9. 9.Laboratori Nazionali di LegnaroINFNLegnaro (PD)Italy
  10. 10.Seconda Università di Napoli, Caserta, and INFN, Sezione di NapoliNapoliItaly
  11. 11.Institut für Experimentalphysik IIIRuhr-Universität BochumBochumGermany
  12. 12.Osservatorio Astronomico di Collurania, Teramo, and INFN, Sezione di NapoliNapoliItaly
  13. 13.Institut für Atomare Physik und FachdidaktikTechnische Universität BerlinBerlinGermany

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