Information barriers in the trilateral initiative: Conceptual description

In this paper the authors attempt to define the structure and requirements (both in hardware and software) of an information barrier (IB) for the trilateral initiative. This IB concept will be employed in the radiation measurement instrument(s) used for attribute verification of excess fissile materials offered for international safeguarding. In this paper, they will specifically not attempt to present a list of solutions to the problems, but instead, concentrate on generating a thorough discussion of the goals and problems themselves. In some cases they have presented potential solutions; these discussions are meant as illustrations of the types of systems required and are not intended as endorsements of any particular solution