virtual ~AliITSPreprocessorSDD(){;}
enum {kNumberOfSDD = 260}; // number of SDD modules
+ enum {kNumberOfSDDLay3 = 84}; // number of SDD modules on layer 3
enum {kNumberOfDDL = 24}; // number of DDLs in SDD
enum {kModulesPerDDL = 12}; // number of modules in each DDL
enum {kNumberOfChannels = 512}; // number of channels per module