struct datastruct{

  unsigned short header;
  unsigned short status[5];
  unsigned short temp[8];
  unsigned short DAC[16];      
  unsigned short regist[6];   
  unsigned short time[8];     
  unsigned short n_tr;     
  unsigned short hitmap_tr[16];
  unsigned short curve1[4096];    
  unsigned short curve2[4096];        
  unsigned short iCRC;    
  unsigned short tail;
  unsigned short CRC;

};