C.9. Neutron initiator
55. The Agency has information from a Member State that Iran has undertaken work to manufacture small capsules suitable for use as containers of a component containing nuclear material. The Agency wasalso informed by a different Member State that Iran may also have experimented with such components inorder to assess their performance in generating neutrons. Such components, if placed in the centre of a nuclear core of an implosion type nuclear device and compressed, could produce a burst of neutrons suitable for initiating a fission chain reaction. The location where the experiments were conducted wassaid to have been cleaned of contamination after the experiments had taken place. The design of the capsule, and the material associated with it, are consistent with the device design information which theclandestine nuclear supply network allegedly provided to Iran.
56. The Agency also has information from a Member State that work in this technical area may have continued in Iran after 2004, and that Iran embarked on a four year programme, from around 2006 onwards, on the further validation of the design of this neutron source, including through the use of a non-nuclear material to avoid contamination.
57. Given the importance of neutron generation and transport, and their effect on geometries containingfissile materials in the context of an implosion device, Iran needs to explain to the Agency its objectivesand capabilities in this field.
C.10. Conducting a test
58. The Agency has information provided by a Member State that Iran may have planned and undertaken preparatory experimentation which would be useful were Iran to carry out a test of a nuclear explosive device. In particular, the Agency has information that Iran has conducted a number of practicaltests to see whether its EBW firing equipment would function satisfactorily over long distances between afiring point and a test device located down a deep shaft. Additionally, among the alleged studies documentation provided by that Member State, is a document, in Farsi, which relates directly to the logistics and safety arrangements that would be necessary for conducting a nuclear test. The Agency hasbeen informed by a different Member State that these arrangements directly reflect those which have been used in nuclear tests conducted by nuclear-weapon States.