Drone borne test of MS-350, MS-1000 and MS-2000

This page contains the data that is described in the scientific publication Optimizing gamma-ray spectrometers for UAV-borne surveys with geophysical applications published in the journal of environmental radioactivity: https://doi.org/10.1016/j.jenvrad.2021.106717

The article is an open-access article and, therefore, accessible without a license.
The table below contains the data used in this publication in a CSV format. The table below

This article compares the results of three different sizes of Medusa gamma-ray spectrometers mounted on a drone with each other and with a ground-borne measurement in an agricultural field. The latter is chosen because agricultural fields have a relatively low radionuclide concentration, and therefore, the methodologies used in the article will also work in environments where the soil contains higher radionuclide concentrations.

The article concludes that you can use a detector as small as the MS-350 for environmental mapping of radionuclide concentrations in a field if you optimize the data processing and map-making process by using Full Spectrum Analysis (FSA) and Kriging.

CSV Data

Description	File	Measurement height
MS-2000 ground-borne data	Demo_data_MS2000_0.8m-Detector_Comparison.csv.csv	0.8 m
MS-2000 UAV-borne data	Demo_data_MS2000_20m-Detector_Comparison.csv.csv	20 m
MS-1000 UAV-borne data	Demo_data_MS1000_20m-Detector_Comparison.csv	20 m
MS-350 UAV-borne data	Demo_data_MS350_20m-Detector_Comparison.csv	20 m

Header description

The CSV files in the table above contain a single data point in each row. The header gives a description of the data, and the table below gives a detailed description of the values present in the CSV files.

Name	Description
Date	Date in day/month/year format
Time	Time in hour:minute:second format
X_GPS	X-position in WGS-84 coordinate system
Y_GPS	X-position in WGS-84 coordinate system
Z_GPS	GPS height of the measurement
Latitude_GPS	Latitude coordinate of the measured value
Longitude_GPS	Longitude coordinate of the measured value
Total_counts	Total counts present in the spectrum (counts)
Cosmics	Counts in the cosmic channel (energy > 3 MeV)
40-K	Radionuclide concentration of potassium-40 in Bq/kg
238-U	Radionuclide concentration of uranium-238 in Bq/kg
232-Th	Radionuclide concentration of thorium-232 in Bq/kg
S 40-K	Uncertainty in the radionuclide concentration of potassium-40 in Bq/kg
S 238-U	Uncertainty in the radionuclide concentration of uranium-40 in Bq/kg
S 232-Th	Uncertainty in the radionuclide concentration of thorium-40 in Bq/kg
Height	Height of the measurement point as measured by the on-board lidar (only present in the UAV datasets)