JHighRateVeto.hh

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#ifndef __JDAQ__JHIGHRATEVETO__
#define __JDAQ__JHIGHRATEVETO__
 
#include "km3net-dataformat/online/JDAQClock.hh"
 
/**
 * \author mdejong
 */
 
namespace KM3NETDAQ {
 
  /**
   * High-rate veto [kHz]
   */
  static double HIGH_RATE_VETO_HZ  =  20.0e3;
  
 
  /**
   * Get maximal number of hits from one PMT within data frame.
   *
   * \return                number of hits
   */
  inline size_t getMaximalNumberOfHits()
  {
    return (size_t) (getFrameTime() * (HIGH_RATE_VETO_HZ  * 1.0e-9));
  }
  
 
  /**
   * Get maximal time for given rate.
   *
   * \param  R_Hz           rate [Hz]
   * \return                time [ns]
   */
  inline double getMaximalTime(const double R_Hz)
  {
    double t1 = getFrameTime();
 
    if (R_Hz > 0) {
 
      t1 = (double) getMaximalNumberOfHits() / (R_Hz * 1.0e-9);
 
      if (t1 > getFrameTime()) {
        t1 = getFrameTime();
      }
    }
 
    return t1;
  }
}
 
#endif