Future Diffractive Structure Function Measurements at HERA
  The purposes and possibilities of future diffractive structure function measurements at HERA are presented. A review of the current range and accuracy of the measurement of $F_2^{D(3)}(\beta, x_p, Q^2)$ is presented and an estimate of the precision of future measurements is given. A feasibility study is performed on the measurement of the structure functions $F_2^{D(4)}(\beta, x_p, Q^2, t)$, $F_{2 charm}^{D}$, $R^{D(3)}$, $R^{D(4)}$ and $F_L^{p}$. Included in this study are estimates of the integrated luminosity required, the analysis techniques to be employed and values of systematic error that could be expected. 
A. Mehta, J. Phillips, B. Waugh