hydrogen gas target for diffraction studies is being pressed and we expect to install and check it out towards the end of this running period., For the fall running period we would install and check out the ~Odetector and then use the hydrogen gas target to carry out the diffraction dissociation studies. By spring we could install the polarized beam apparatus which in itself is fairly simple but which impose~ sophisticated requirements on the software analysis. Next summer we would expect to carry out the liquid hydrogen transmission target measurements. FIGURE CAPTION 4 Expected a), b) and c) i' distribution of the pn- system observed in the reaction n + A + pn-+ A for C, Cu and Pb targets. Figure 2 t' distribution expected for the reaction n +Cu + pn + Cu for Coulomb dissociation, nuclear diffractive dissociation and incoherent N* (1470) production. Figure 3 Effective mass distribution of the system pn diffrac­ tively produced on C, Cu and Pb targets. Figure Z dependence of the Coulomb and nuclear diffractive cross sections for the reaction n + A + A + pn-. Figure 5 E~fective mass distribution of pn produced on Pb and C, normalyzed for masses above

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