Very small samples from the Shroud of Turin have been dated by accelerator mass spectrometry in laboratories at Arizona, Oxford and Zurich.
This flood of neutrons may have imprinted an X-ray-like image onto the linen burial cloth, say the researches.
Now Carpinteri’s team have hypothesized that high-frequency pressure waves generated in the Earth’s crust during earthquakes are the source of such neutron emissions.
The scientists base the idea on research into piezonuclear fission reactions which occur when brittle rock is crushed under enormous pressure.
As Controls, three samples whose ages had been determined independently were also dated.
The Shroud of Turin , which many people believe was used to wrap Christ's body, bears detailed front and back images of a man who appears to have suffered whipping and crucifixion.
The machine used to examine the Shroud's fibres and test traction, allowed researchers to examine tiny fibres alongside about twenty samples of cloth dated between 3000 BC and 2000 AD.