SPES and the neutron facilities at Laboratori Nazionali di Legnaro

  • L. SilvestrinEmail author
  • D. Bisello
  • J. Esposito
  • P. Mastinu
  • G. Prete
  • J. Wyss
Regular Article
Part of the following topical collections:
  1. Focus Point on Compact accelerator-driven neutron sources


The SPES Radioactive Ion Beam (RIB) facility, now in the construction phase at INFN-LNL, has the aim to provide high-intensity and high-quality beams of neutron-rich nuclei for nuclear physics research as well as to develop an interdisciplinary research center based on the cyclotron proton beam. The SPES system is based on a dual-exit high-current cyclotron, with tunable proton beam energy 35-70MeV and 0.20-0.75mA. The first exit is used as proton driver to supply an ISOL system with an UCx Direct Target able to sustain a power of 10kW. The expected fission rate in the target is of the order of \( 10^{13}\) fissions per second. The exotic isotopes will be re-accelerated by the ALPI superconducting LINAC at energies of 10 A MeV and higher, for masses around \( A=130\) amu, with an expected beam intensity of \( 10^7\) - \( 10^9\) pps. The second exit will be used for applied physics: radioisotope production for medicine and neutrons for material studies. Fast neutron spectra will be produced by the proton beam interaction with a conversion target. A production rate in excess of \( 10^{14}\) n/s can be achieved: this opens up the prospect of a high-flux neutron irradiation facility (NEPIR) to produce both discrete and continuous energy neutrons. A direct proton beam line is also envisaged. NEPIR and the direct proton line would dramatically increase the wide range of irradiation facilities presently available at LNL. We also present LENOS, a proposed project dedicated to accurate neutron cross-sections measurements using intense, well-characterized, broad energy neutron beams. Other activities already in operation at LNL are briefly reviewed: the SIRAD facility for proton and heavy-ion irradiation at the TANDEM-ALPI accelerator and the BELINA test facility at CN van de Graaff accelerator.


Proton Beam Neutron Beam Neutron Spectrum Linear Energy Transfer Soft Error 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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Copyright information

© Società Italiana di Fisica and Springer-Verlag Berlin Heidelberg 2016

Authors and Affiliations

  • L. Silvestrin
    • 1
    • 2
    Email author
  • D. Bisello
    • 1
    • 2
  • J. Esposito
    • 3
  • P. Mastinu
    • 3
  • G. Prete
    • 3
  • J. Wyss
    • 2
    • 4
  1. 1.Dept. of Physics and AstronomyUniversity of PadovaPadovaItaly
  2. 2.INFN PadovaPadovaItaly
  3. 3.INFN Legnaroviale dellUniversit 2Legnaro (Pd)Italy
  4. 4.DICeMUniversity of CassinoCassino (Fr)Italy

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