In the website of our laboratory is the web page where you can find all the results,
works, publications, interviews and films related to the Shroud studies conducted at ENEA.
From a Google translation of an interview conducted by Maria Margherita Peracchino in L’Indro, Shroud: the image impossible according to the ENEA: Interview with Paolo Di Lazzaro, head of the Laboratory of the Center Excimer ENEA Frascati:
Among the most recent studies, there is one made by the Laboratory of the Center Excimer ENEA Frascati. "Our laboratory has tried a new approach," says Paolo Di Lazzaro, head of the Laboratory of ENEA Frascati, "trying to play a Shroud-like coloration of linen fabrics through photochemical effects induced by ultraviolet light, which in principle has the characteristics needed to get at least two of the characteristics of the Shroud image, which is the low temperature of formation and coloring extremely superficial, limited to a thin film sub micrometer. "
Lazarus, we explain the work you have carried out on the Shroud and the fundamental results to which you have come?
Since 2005 the Laboratory of Excimer ENEA Frascati Centre carried out a large number of irradiation of ultraviolet laser light on linen fabrics woven in the years between 1930 and 1950 never used and never washed with detergent, in order to avoid the presence of bleaching chemicals that can alter the optical properties of the tissue. By radiation means sending laser pulses on the fabric, which alter the chemical bonds of the same tissue, which in turn changes its surface properties and appearance. The main purpose of irradiations was to verify whether an intense ultraviolet radiation was able to create a linen coloration with characteristics similar to those of the body image on the Shroud of Turin. After numerous irradiation and with great difficulty we managed to find the right combination of laser parameters (pulse duration, intensity, energy density and number of shots) that allows a color-like shroud. We got a shade of color, a superficial staining, an effect of alternating colored fibers and not colored, the negativity of the image that are similar to those measured on the Shroud of Turin by STURP. Based on our thirty years of experience of irradiation and interaction of light with many materials, was the first time that we have found a range of values so critical to get the desired effect: during the irradiation of the fabric is in fact sufficient to vary by a few percentage points one only the laser parameters mentioned above to stop getting any coloration of linen. Really amazing.
In addition to the experiments of laser irradiation and coloration of linen, more recently you have faced the problem of different written and invisible images that some scholars fail to highlight after a digital processing of the contrast and brightness of the photographs of the Shroud.
Yes. And our results suggest that in some cases (the alleged written, the alleged face on the back) is probably illusory perceptual effects related to the phenomena of psychological Gestalt and pareidolia well known to scholars of human perception and optical illusions. Our results have been presented in detail in several articles published in international scientific journals of great prestige and impact, and therefore are available to all interested scientists to reproduce our results and maybe get better. In the website of our laboratory is the web page where you can find all the results , works, publications, interviews and films related to the Shroud studies conducted at ENEA.