"We believe it is possible that neutron emissions by earthquakes could have induced the image formation on the Shroud's linen fibres, through thermal neutron capture on nitrogen nuclei, and could also have caused a wrong radiocarbon dating," said Professor Alberto Carpinteri, from the Politecnico di Torino.The Shroud has attracted widespread interest ever since Secondo Pia took the first photograph of it in 1898 which showed details which could not be seen by the naked eye.
The measurements were carried out independently in three accelerator mass spectrometry (AMS) laboratories located at the University of Arizona, Tucson, Arizona, USA, Oxford University, Oxford, England, and ETH-Hönggerberg, Zürich, Switzerland with assistance for certification and data analysis provided by the British Museum.
The author concludes that, although the procedures followed differed substantially from those recommended at a workshop organized by the Pontifical Academy of Sciences, the results are credible.
Clarke told Barclay, There appears to be some doubt as to whether the carbon content of the material has remained constant over the years.
The whole principle of the method depends upon the specimen not undergoing any exchange of carbon between its molecules and atmospheric dioxide, etc. and the possibility of contamination during early times, would, I think, make the results doubtful.
Last year scientists at the University of Padua in northern Italy dated it to between 300BC and AD400 – still hundreds of years after Christ, who is believed to have died between 30-36AD.
Other scientists have previously suggested that neutron radiation may have been responsible for the ghostly image of a crucified man with his arms crossed.
I sent to two different laboratories in two different parts of the world a certain amount of the same burnt grain.
I got two readings differing by 2000 years, the archaeological dates being right in the middle.
The scientists base the idea on research into piezonuclear fission reactions which occur when brittle rock is crushed under enormous pressure.