Imaging neutron activation analysis and multiplexed gamma ray spectrometry

This work demonstrates for the first time the feasibility of Imaging Neutron Activation Analysis (Imaging NAA) and of multiplexed gamma-ray spectrometry. The two techniques are based on position sensitive ;Two distinctly different charged particle imaging detectors were investigated for electron localization. They were: (1) an electron optics based system for low energy secondary electron imaging and (2) a Position Sensitive Photomultiplier Tube (PSPMT) coupled to a thin plastic scintillator for beta imaging. The secondary electron imaging system offers a spatial resolution of 30 ;Experimental results that demonstrate the two techniques are presented for various radionuclides that undergo...