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Ultra-sensitive in-beam \( \gamma\) -ray spectroscopy for nuclear astrophysics at LUNA

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Abstract

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.

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Authors and Affiliations

  1. INFN, Sezione di Padova, Padova, Italy

    A. Caciolli, C. Broggini, R. Menegazzo & C. Rossi Alvarez

  2. Dipartimento di Fisica, Università di Padova, Padova, Italy

    A. Caciolli

  3. Dipartimento di Fisica, Università di Genova and INFN Sezione di Genova, Genova, Italy

    L. Agostino, F. Confortola, P. Corvisiero, H. Costantini, A. Lemut & P. Prati

  4. Forschungszentrum Dresden-Rossendorf, Dresden, Germany

    D. Bemmerer & M. Marta

  5. Istituto di Fisica Generale Applicata, Università di Milano and INFN Sezione di Milano, Milano, Italy

    R. Bonetti, A. Guglielmetti & C. Mazzocchi

  6. ATOMKI, Debrecen, Hungary

    Z. Elekes, Zs. Fülöp, Gy. Gyürky & E. Somorjai

  7. INFN, Laboratori Nazionali del Gran Sasso, Assergi, Italy

    A. Formicola, C. Gustavino, M. Junker & M. Laubenstein

  8. Dipartimento di Fisica Sperimentale, Università di Torino and INFN Sezione di Torino, Torino, Italy

    G. Gervino

  9. Dipartimento di Scienze Fisiche, Università di Napoli “Federico II”, Napoli, Italy

    G. Imbriani, B. Limata & V. Roca

  10. Institut für Experimentalphysik III, Ruhr-Universität Bochum, Bochum, Germany

    C. Rolfs, F. Strieder & H. P. Trautvetter

  11. Osservatorio Astronomico di Collurania, Teramo, Italy

    O. Straniero

  12. Seconda Università di Napoli, Caserta, Italy

    F. Terrasi

  13. INFN, Sezione di Napoli, Napoli, Italy

    G. Imbriani, B. Limata, V. Roca, O. Straniero & F. Terrasi

Authors
  1. A. Caciolli
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  2. L. Agostino
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  3. D. Bemmerer
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  4. R. Bonetti
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  5. C. Broggini
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  6. F. Confortola
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  7. P. Corvisiero
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  8. H. Costantini
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  9. Z. Elekes
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  10. A. Formicola
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  11. Zs. Fülöp
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  12. G. Gervino
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  13. A. Guglielmetti
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  14. C. Gustavino
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  15. Gy. Gyürky
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  16. G. Imbriani
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  17. M. Junker
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  18. M. Laubenstein
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  19. A. Lemut
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  20. B. Limata
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  21. M. Marta
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  22. C. Mazzocchi
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  23. R. Menegazzo
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  24. P. Prati
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  25. V. Roca
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  26. C. Rolfs
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  28. E. Somorjai
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  29. O. Straniero
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  30. F. Strieder
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  31. F. Terrasi
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  32. H. P. Trautvetter
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Consortia

The LUNA Collaboration

Corresponding author

Correspondence to D. Bemmerer.

Additional information

S. Kubono

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The LUNA Collaboration., Caciolli, A., Agostino, L. et al. Ultra-sensitive in-beam \( \gamma\) -ray spectroscopy for nuclear astrophysics at LUNA. Eur. Phys. J. A 39, 179–186 (2009). https://doi.org/10.1140/epja/i2008-10706-3

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  • DOI: https://doi.org/10.1140/epja/i2008-10706-3

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