/* dMvdClmp contains a list of all "clumps" of adjacent strips in */
/* the MVD barrel. zavg is relative to the center of the MVD, it  */
/* is not the z in the phenix coordinate system unless the MVD is */
/* centered exactly at z=0.                                       */
struct dMvdClmp { 
                   short shell;    /* shell number (0-1)          */
                   short row;      /* row number (0-5)            */
                   short cell;     /* cell (a.k.a. panel) (0-11)  */
                   float zavg;     /* z of center of clump (cm)   */
                   short clsize;   /* number of strips in clump   */
                 };