Finding Multiple Peaks Signal in Fast Beam Conditions Monitor (BCM1F)

Fast Beam Conditions Monitor (BCM1F) is diamond and silicon sensors based luminometer of CMS detector. The methods of finding multiple peaks signal in BCM1F is shown. Multiple peaks signal found at signal with width between 60 ns - 300 ns. Double peaks are counted as single hit in the constant threshold analysis and leads to underestimation in the luminosity. Therefore it should be estimated for different filling schemes and sensor types. The percentage of long width pulse in different sensor for different fill are calculated. About 30 \% long width pulse found in sCVD sensor, 12 \% in pCVD and no more than 1 \% for silicon sensor.