EVALUATION OF NaI(TL) AND PLASTIC SCINTILLATORS FOR USE IN REMOTE, UNATTENDED, AND PORTAL MONITORING*

Year
1998
Author(s)
J. K. Halbig - Los Alamos National Laboratory
K. D. Ianakiev - Los Alamos National Laboratory
P. Staples - Los Alamos National Laboratory
J. Audia - Los Alamos National Laboratory
Y. Bai - Los Alamos National Laboratory
Abstract
We have evaluated and compared some of the relevant operating characteristics of NaI and plastic scintillators for use in various safeguards monitoring applications. These include a sensitivity analysis of the two scintillators to various radiation fields and scintillator response as affected by environmental temperature. A comparison of experiment and modeling via the Monte Carlo NParticle (MCNP) code has been performed to validate our calculational techniques. This then enables complex detector situations to be simulated with increased confidence.