The potential of imaging by thermal and fast neutrons has been assessed in the Cultural Heritage field, given the fact that this technique is non invasive and neutrons can penetrate many layers of thick objects. This method provides valuable information to assist preservation and restoration activities and to help dating or attributing through the understanding of the manufacturing techniques. An investigation of the imaging capabilities of the Italian Neutron Experimental Station (INES at the ISIS pulsed neutron source of RAL laboratories, UK) and the Neutron Computerized Tomography and Radiography laboratory (NECTAR at the FRMII reactor in Munich) applied to artwork objects made of metal alloys was carried out. For this purpose custom samples have been prepared, following size and composition of typical ancient works of art. Through neutron tomography the internal structure of the testing metal objects was reconstructed and millimetric scale details inside them were resolved. Moreover several measurements have been performed to fully characterize the performance of both apparatus. Their imaging response has been analyzed in terms of linearity, signal to noise ratio, dynamic range and resolution by the usage of scintillator screens of different chemical composition and thickness. A detailed description of these studies will be presented.

Neutron imaging studies within the neu_ART Cultural Heritage project

MILA, Giorgia;DURISI, Elisabetta Alessandra;VISCA, Lorenzo;SACCHI, Roberto;RE, ALESSANDRO;LO GIUDICE, Alessandro;ROMERO, Alessandra;COTTO, Giorgio;
2013

Abstract

The potential of imaging by thermal and fast neutrons has been assessed in the Cultural Heritage field, given the fact that this technique is non invasive and neutrons can penetrate many layers of thick objects. This method provides valuable information to assist preservation and restoration activities and to help dating or attributing through the understanding of the manufacturing techniques. An investigation of the imaging capabilities of the Italian Neutron Experimental Station (INES at the ISIS pulsed neutron source of RAL laboratories, UK) and the Neutron Computerized Tomography and Radiography laboratory (NECTAR at the FRMII reactor in Munich) applied to artwork objects made of metal alloys was carried out. For this purpose custom samples have been prepared, following size and composition of typical ancient works of art. Through neutron tomography the internal structure of the testing metal objects was reconstructed and millimetric scale details inside them were resolved. Moreover several measurements have been performed to fully characterize the performance of both apparatus. Their imaging response has been analyzed in terms of linearity, signal to noise ratio, dynamic range and resolution by the usage of scintillator screens of different chemical composition and thickness. A detailed description of these studies will be presented.
NINMACH 2013 - 1st International Conference on Neutron Imaging and Neutron Methods in Archaeology and Cultural Heritage Research
Garching, Germany
9/12 settembre 2013
NINMACH 2013 - 1st International Conference on Neutron Imaging and Neutron Methods in Archaeology and Cultural Heritage Research
Burkhard Schillinger
82
82
http://www.frm2.tum.de/en/aktuelles/events/archive/ninmach-2013/index.html
Giorgia MILA ; Elisabetta DURISI ; Lorenzo VISCA ; Roberto SACCHI ; Alessandro RE ; Alessandro LO GIUDICE ; Amedeo STAIANO ; Alessandra ROMERO; Rossella BRANCACCIO; Giovanni DUGHERA ; Walter FERRARESE ; Giorgio COTTO ; Marco NERVO ; Marco DEMMELBAUER ; Annamaria GIOVAGNOLI ; Thomas BÜCHERL; Francesco GRAZZI ; Antonella SCHERILLO; Nadia PASTRONE
File in questo prodotto:
File Dimensione Formato  
O 2013 Mila et al - NINMACH2013.pdf

non disponibili

Tipo di file: PDF EDITORIALE
Dimensione 668.74 kB
Formato Adobe PDF
668.74 kB Adobe PDF   Visualizza/Apri   Richiedi una copia

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/2318/146555
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus ND
  • ???jsp.display-item.citation.isi??? ND
social impact