Light output due to cosmic-ray muons for an EJ301 scintillator of 12.7 cm in diameter and length

The light output due to cosmic-ray muons was determined for an EJ301 scintillator of 12.7 cm in diameter and length. Muons were measured with the setup of the EJ301 scintillator put between two thin plastic scintillators. Coincidence analysis using the signals from these plastic scintillators revealed a broad peak in the distribution of the EJ301 scintillator as measured with a charge-integrating analog-to-digital converter (ADC). The mode of the distribution was obtained by fitting analysis. To convert the corresponding ADC value into light output, continuous-energy protons were measured, with a resulting light output of the mode became to be 20.5 ± 1.0 MeVee. By measuring cosmic-ray muons with this setup, we have shown that we can obtain a calibration point in the higher light output region.