Ultraviolet laser radiation

The closest anyone so far has done to produce a discoloring of linen fiber is through ultraviolet radiation. This supports Jackson’s theory that some sort of radiation was involved.

In the early 2000s the Excimer Laboratory at the Research Centre ENEA Frascati had laser sources
emitting radiation pulses in both near ultraviolet and far ultraviolet, so there was the possibility to test if the
hypothesis of Jackson was viable, or if his opponents were right when stating that it was impossible
colouring linen fabrics by ultraviolet radiation. Our results showed that Jackson was right. The radiation in
the far ultraviolet is able to create a Shroud-like coloration on linen fabrics. Jackson was right as well
considering this ‘radiative hypothesis’ outside current paradigm and known scientific phenomena, because
we measured the amount of radiation energy and the ultra-short duration of laser pulses required to achieve a
Shroud-like linen coloration, and these parameters cannot be generated by any natural phenomenon known to


How would radiation cause dehyration/oxidation on the surface of the linen fibers?

A laser system is a device that emits collimated bursts of radiation, a form of energy that propagates at
distance from the source. Just now, our Laboratory has thirty-five years experience of irradiation of various
materials by ultraviolet radiation. The effect of these irradiations is always limited to the surface of the
material, whether it be a metal, a plastic, a semiconductor or a fabric. In fact, the energy of the ultraviolet
radiation impinging on an object is absorbed in the most superficial molecular layers, and then this energy
changes the molecular structure only at the surface of the object. Ultraviolet pulses break the molecular
bonds without heating the irradiated sample. Then, ultraviolet radiation and far ultraviolet radiation are a
good candidate to obtain three characteristics of the coloration of the shroud image, namely the
superficiality, the low-temperature of the process and the capability to colour areas by a contactless process.

Since 2005, our laboratory has carried out a large number of irradiations of ultraviolet radiation on linen
fabrics woven in the years between 1930 and 1950 that were never used, never washed with detergent, in
order to avoid the presence of chemicals which may alter the optical properties of the tissue. “Irradiation”
means sending laser pulses on the linen, which alter the chemical bonds of the linen cellulose itself, which in
turn changes its surface properties and appearance. After many irradiations and with great difficulty we
found the combination of laser parameters (pulse duration, intensity, energy density and number of shots)
that allows a Shroud-like linen coloration.


Their experiment even had colored fibers next to discolored fibers as well as other shroud features.

We got a hue of colour, a coloration limited to the crown of
threads, coloured next to not coloured fibres, the reduced fluorescence, the negativity of the image, and other
properties that are similar to those measured on the Shroud of Turin images by STuRP.



They only did the experiment on a small piece of linen. In order to create an image the size of the TS, it would require a laser powered at 34 trillion watts.

“it should be noted that the total
power of VUV radiations required to instantly color the surface of linen that corresponds to a
human of average height, body surface area equal to = 2000 MW/cm2 17000 cm2 = 34 thousand
billion watts makes it impractical today to reproduce the entire Shroud image using a single laser
excimer, since this power cannot be produced by any VUV light source built to date (the most
powerful available on the market come to several billion watts).”

https://www.academia.edu/49594370/What_ … xperiments