From The Times December 14, 2009
Secret document exposes Iranís nuclear trigger
Catherine Philp in Washington
Confidential intelligence documents obtained by The Times show that Iran is working on testing a key final component of a nuclear bomb.
The notes, from Iranís most sensitive military nuclear project, describe a four-year plan to test a neutron initiator, the component of a nuclear bomb that triggers an explosion. Foreign intelligence agencies date them to early 2007, four years after Iran was thought to have suspended its weapons programme.
An Asian intelligence source last week confirmed to The Times that his country also believed that weapons work was being carried out as recently as 2007 ó specifically, work on a neutron initiator.
The technical document describes the use of a neutron source, uranium deuteride, which independent experts confirm has no possible civilian or military use other than in a nuclear weapon. Uranium deuteride is the material used in Pakistanís bomb, from where Iran obtained its blueprint.