Effects of Detector–Source Distance and Detector Bias Voltage Variations on Time Resolution of General Purpose Plastic Scintillation Detectors

Assist. Prof. Elif Ebru Ermiş

Effects of source-detector distance and the detector bias voltage variations on time resolution of a general purpose plastic scintillation detector such as BC400 were investigated. 133Ba and 207Bi calibration sources with and without collimator were used in the present work. Optimum source-detector distance and bias voltage values were determined for the best time resolution by using leading edge timing method. Effect of the collimator usage on time resolution was also investigated.