STUDI KARAKTERISTIK DETEKTOR SODIUM IODIDE DALAM PEMANFAATANNYA SEBAGAI SEGMENTED GAMMA SCANNER LIMBAH RADIOAKTIF

THE STUDY OF SODIUM IODIDE DETECTOR CHARACTERISTICS AS PART OF RADIOACTIVE WASTE SEGMENTED GAMMA SCANNER . The study of sodium iodide detector characteristics as part of radioactive waste segmented gamma scanner have been done. The study was conducted in order to establish segmented gamma scanner using sodium iodide detectors as radiation counter. The research purpose to prepare radiation counter for segmented gamma scanner at radioactive waste installation, so it can working optimally on counting radioactivity of radioactive waste. Study of characteristics performed using gamma radiation sources Cs-137 and Co-60 by observing the counting results from some of parameters tested. Based on the testing parameters, sodium iodide detector produce stable counts with the result that can be used as a radiation counter in segmented gamma scanner system. The result of this study shows that the optimal counts was obtained at the setting operation for voltage and amplification both were 800 volt and multiply 8, respectively. This setting operations can be used as reference when using sodium iodide detector as radiation counter.
Keywords: Gamma Scanner, Detector, Sodium iodide ,Cs-137, Co-60