Baldelli, P. and Bonizzoni, L. and Gambaccini, M. and Gargano, M. and Ludwig, L. and Milazzo, M. and Pasetti, L. and Petrucci, F. and Prino, F. and Ramello, L. and Scotti, M. (2006) Application of the K-edge X-ray technique to map pigments of art paintings: Preliminary results. Il nuovo cimento C, 29 (6). pp. 663-672. ISSN 1826-9885
|
Text
ncc9195.pdf - Published Version Download (567kB) | Preview |
Abstract
The topographic map of pigments of paintings is a powerful tool for detecting execution techniques, pentimenti and underpaintings hidden to usual imaging diagnostics. Neutron activation autoradiography has provided significant results in few and very important instances. Because of the cost of the nuclear reactor facility needed for a complete painting examination, new technologies to obtain the topographic map of pigments are desirable. Dual-energy radiography can pursue the same goal by tuning the energy gap on the K-absorption edge of interesting elements. The proposed technique is based on the use of quasi-monochromatic beams, with energy below and above the threshold of K absorption of the considered element. In this way two final images are obtained showing the distribution of the specific element and the distribution of all other materials. Preliminary results have been obtained by using samples containing cadmium.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | X- and gamma-ray instruments |
| Subjects: | 500 Scienze naturali e Matematica > 530 Fisica |
| Depositing User: | Marina Spanti |
| Date Deposited: | 19 Mar 2020 14:56 |
| Last Modified: | 19 Mar 2020 14:56 |
| URI: | http://eprints.bice.rm.cnr.it/id/eprint/16124 |
Actions (login required)
 |
View Item |
