%0 Journal Article %T Project X functional requirements specification %A S. D. Holmes %A S. D. Henderson %A R. Kephart %A J. Kerby %A S. Mishra %A S. Nagaitsev %A R. Tschirhart %J Physics %D 2012 %I arXiv %X 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. %U http://arxiv.org/abs/1202.3953v1