HB Line Nal Monitoring System Methods and Equations

摘要

The HBL NaI Monitoring system was developed and installed in the mid 1980's by Los Alamos National Laboratory (LANL) for monitoring of plutonium solutions in various location throughout HBL Phase II. The system was put in a state of warm standby when the decision not to start Phase II was made and has remained in that state ever since. HBL Phase II Engineering group requested the Instrumentation and Examination Systems group upgrade the system to be Y2K compliant and Windows compatible. This document describes the equations and algorithms to be used to calculate plutonium mass or concentration as a function of the count rate in the region of 375 KeV - 425 KeV