Tuesday, October 13Global edition

Archaeology

Digs, ancient worlds, discoveries

Handheld scanner could flag which unread Herculaneum scrolls are worth opening

Lead-based ink absorbs up to 25 times more X-rays than charred paper, making it detectable without unwrapping a scroll. Scientists say portable XRF screening could help prioritise the 1,800 carbonised documents still held in Italy, France, and England — though it is not yet known how many of the ancient scrolls actually contain lead.

2 min read