Experimental study of a large plastic scintillator response with different reflective coverings based on digital pulse processing method.

Digital pulse processing methods have various applications in radiation spectroscopy due to their unique properties. Here, the effect of light reflector on the response of a large plastic scintillator with different reflective coverings (Teflon tape, aluminum foil and black tape) coupled to a fast photomultiplier tube is investigated based on some extracted anode pulse features. Results showed that the pulse features were changed according to the reflection coefficient of the covering. For instance, the fall time of the average anode pulse shape for Teflon tape, aluminum foil and black tape coverings are 10.46, 6.88 and 3.65 ns, respectively. [ABSTRACT FROM AUTHOR]