Programs that read turn by turn data 
1. Plot_tbt_data /BPM_tbt_gain/ Reads turn by turn data from a standard RD-xxxxxx.dat file and plots x vs y, 
   or histogram, or sums and differences as for gain  
2. multibunch_anal /BPM_tbt_gain/ Reads turn by turn data from a standard RD-xxxxxx.dat file for multibunches and
   plots position vs turn, fft, and amplitude vs bunch