.... This fact shows that the interevent dead time was reduced down to approximately a half of that of the previously developed acquisition system. K e y w o r d s : position sensitive proportional counter, neutron measurement, time series data, time and space, inter-event dead time, pulse train, Kyoto...

... Data from field instruments are increasingly being incorporated into Geographic Information Systems (GIS). This adds a geospatial component to time series data and permits analysis and display with other geospatial data. From the perspective of GIS analysis, two issues are of importance...