• N. Solyak, I.G. Gonin, D.E. Johnson, S. Nagaitsev, V.P. Yakovlev
  Fermilab, Batavia

In the Pro­ject X fa­cil­i­ty a 2.6 GeV, H^- CW beam is de­liv­ered to three users si­mul­ta­ne­ous­ly by way of se­lec­tive­ly fill­ing ap­pro­pri­ate RF buck­ets at the front end of the linac and then RF split­ting them to three dif­fer­ent tar­get halls. With the de­sire to split the H^- beam three ways, an RF sep­a­ra­tor di­rects two quar­ters of the beam to one user (Mu2e), one quar­ter to an­oth­er user (Kaon), and one quar­ter to the third (uniden­ti­fied) user. The nat­u­ral way is to use a SC struc­ture with the de­flect­ing TM110 mode. Basic re­quire­ments to the de­flect­ing RF struc­ture are for­mu­lat­ed and de­sign of the de­flect­ing SC cav­i­ties is pre­sent­ed.