Project X functional requirements specification
  Project X is a multi-megawatt proton facility being developed to support intensity frontier research in elementary particle physics, with possible applications to nuclear physics and nuclear energy research, at Fermilab. A Functional Requirements Specification has been developed in order to establish performance criteria for the Project X complex in support of these multiple missions. This paper will describe the Functional Requirements for the Project X facility and the rationale for these requirements. 
S.D. Holmes, S.D. Henderson, R. Kephart, J. Kerby, S. Mishra, S.   Nagaitsev, R. Tschirhart (Fermilab)
physics.acc-ph