Effects of gamma irradiation on the colour of pigments

D. C. Negut; C. C. Ponta; Rodica M. Georgescu; I. V. Moise; Gh. Niculescu; A. I. M. Lupu

doi:10.1117/12.725967

19 July 2007 Effects of gamma irradiation on the colour of pigments

D. C. Negut, C. C. Ponta, Rodica M. Georgescu, I. V. Moise, Gh. Niculescu, A. I. M. Lupu

Proceedings Volume 6618, O3A: Optics for Arts, Architecture, and Archaeology; 66180R (2007) https://doi.org/10.1117/12.725967
Event: Optical Metrology, 2007, Munich, Germany

Abstract

The aim of this paper is to investigate the influence of gamma irradiation process on the colour of painted wood panels. Insects and micro-organisms are frequently identified enemies of cultural objects from museums and archives. Based on its biocide effect, gamma radiation could be used for decontamination and conservation purposes. Important advantages can be mentioned in its favour: no toxic or radioactive residues remained in the treated item; large amount of objects can be treated quickly; excellent reliability; attractive cost. In case of emergency radiation treatment in industrial facilities is probably the only method that can be used. There is also a potential side-effect. Interaction of gamma rays with any substance may change its chemical and physical properties. The change is proportional with the irradiation dose. In the case of paintings, eventually colour changes have to be evaluated. Such an approach actually establishes irradiation treatment limitations. A portable integrating sphere spectrophotometer was used for colour measurements. The results of colour analysis before and after the radiation treatment of the painted wood panels are reported and discussed.

Citation Download Citation

D. C. Negut, C. C. Ponta, Rodica M. Georgescu, I. V. Moise, Gh. Niculescu, and A. I. M. Lupu "Effects of gamma irradiation on the colour of pigments", Proc. SPIE 6618, O3A: Optics for Arts, Architecture, and Archaeology, 66180R (19 July 2007); https://doi.org/10.1117/12.725967

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available