Drone borne gamma-ray measurements can be corrected for height.

The Medusa gamma-ray spectrometers have become the standard for drone-borne mapping soil and geology. For a successful application of these gamma-ray spectrometers, it is important that the sensor gives absolute values concentrations of the radionuclides in the soil.

Our most recent research paper describes how drone-borne gamma-ray can be corrected for the height of measurement. The article can be downloaded here.

The research work is part of a Phd project at Medusa Radiometrics and University Medical Centre Groningen and is subsidized by the European Regional Development Fund (EFRD 2014–2020).

The MS-700 gamma spectrometer used for drone-borne mapping.

Medusa’s gamma-ray spectrometers are commonly used for drone-borne mapping of soil properties and geology and our sensors have proven their application. But what if a client needs to map specific isotopes. That’s why we built our highest resolution gamma-spectrometer ever!

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MS-1200 sub onderwater gamma-ray spectrometer

Medusa’s gamma spectrometers are used worldwide to map soil and sediments. Due to the rapidly growing demand for sediment mapping surveys, Medusa Radiometrics invests in making the underwater gamma-ray spectrometers more manageable and more efficient. The sensor will be made autonomous, and we will develop technology to allow the sensor to communicate wirelessly with the vessel. The European Regional Development Fund (ERDF) funds the research.

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MS-1200 sub underwater gamma-ray spectrometer

Technology expected to offer significant cost, safety and environmental benefits pre- and post-remediation of contaminated sites.

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Gamma Ray Sensor MS1000

Recently we finished a first series of flight tests of our “drone-borne” gamma-ray sensor. To answer to the increasing demand for drone-borne sensing systems, we decided almost a year ago, to start the development of a lightweight and rugged version of our gamma-ray detection systems; the “drone detector”. The aim of the project is to create a low-weight, low power and fully self-contained sensor system fit to be used underneath a “standard” unmanned areal vehicle (UAV). A challenge that – as we found – not only involves a fully new detector design, both in hardware as in software, but also a careful look at the drone specifics as we found out the hard way when our first prototype crashed while flying…

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Sensor on Quad in Dutch Flevopolder

How do you increase the accuracy of taking samples in the field? Dutch Wageningen University & Research uses Medusa’s gamma-ray spectrometer to more accurately define its sample locations and thus reducing the risk of false sampling.