Analysis of information sources in references of the Wikipedia article "Tuwaitha Nuclear Research Center" in English language version.
It has been stated by the Israelis that a laboratory located 40 meters below the reactor-the figure was later corrected to four meters which allegedly had not been discovered by IAEA inspectors had been destroyed. The existence of a vault under the reactor that has apparently been hit by the bombing is well known to the inspectors. That vault contains the control rod drives and has to be accessible to the staff for maintenance purposes. In order to protect the staff from radiation, the ceiling of the vault consists of a thick concrete slab which in turn is lined with a heavy steel plate and therefore, that space could not be used to produce plutonium.
