Plastic scintillator material is used in many applications for the detection of gamma-rays from radioactive material, primarily due to the sensitivity per unit cost compared to other detection materials. However, the resolution and lack of full-energy peaks in the plastic scintillator material prohibits detailed spectroscopy. Therefore, other materials such as doped sodium iodide are used for spectroscopic applications. The limited spectroscopic information can however be exploited in plastic scintillator materials to provide some discrimination. The discrimination between man-made and naturally occurring sources would be useful in reducing alarm screening for radiation detection applications which target man-made sources. The results of applying the limited energy information from plastic scintillator material for radiation portal monitors are discussed.
Revised: April 20, 2010 |
Published: August 19, 2003
Citation
Ely J.H., R.T. Kouzes, B.D. Geelhood, J.E. Schweppe, and R.A. Warner. 2003.Discrimination of Naturally Occurring Radioactive Material in Plastic Scintillator Material. In 2003 IEEE Nuclear Science Symposium Conference Record, October 19-25, 2003, Portland, Oregon, edited by S Metzler, 2, 1453-1457. Piscataway, New Jersey:IEEE.PNNL-14371.