Typical applications include: Mineral exploration and prospecting Geological mapping Soil mapping Agricultural surveys Pollution and contamination mapping Environmental radiometric surveys Locating radioactive sources Drone-based gamma-ray mapping Medusa specifically identifies prospecting, soil mapping and pollution mapping as applications for the MS-700.

Yes. The MS-700 is designed for geophysical and agricultural surveying and can provide data for environmental radiometric investigations, soil mapping and pollution surveys.

Yes. Gamma-ray spectrometers can be used to locate areas or objects producing elevated gamma radiation. The MS-700 can therefore be deployed on a UAV for remote source-location surveys, subject to appropriate operational and safety procedures.

Yes. Pollution mapping is specifically identified as an MS-700 application.

True Terrain Following helps a UAV maintain a controlled height above changing terrain. It is particularly useful for gamma-ray surveys because maintaining a consistent sensor-to-ground distance can improve the consistency of radiometric measurements.

Yes. The MS-700 is suitable for surveys across varied terrain. For challenging topography, the MS-700 can be integrated into a UAV workflow incorporating True Terrain Following (TTF) technology.

Gamma radiation decreases with distance from its source. Maintaining a consistent detector height above the ground therefore helps produce more consistent measurements across a survey area. For UAV surveys, flight planning and terrain following can be particularly important when working over uneven terrain.

Yes. When combined with accurate GNSS positioning, measurements collected by the MS-700 can be processed into georeferenced radiometric maps showing variations in gamma-ray response and radionuclide concentrations.

Full Spectrum Analysis uses the complete gamma-ray spectrum rather than relying only on selected energy windows. Medusa’s processing system is designed to preserve the statistical properties of the measured spectra while determining radionuclide concentrations and uncertainties.

Medusa uses GammAn for post-processing. It provides tools including Full Spectrum Analysis (FSA) and Window Analysis (WA).

Yes. Onboard processing through mDOS enables real-time analysis, radionuclide inspection, survey planning and sample measurements.

mDOS (Medusa Detector Operating System) is the embedded operating system used by Medusa gamma-ray spectrometers. It provides the interface for configuring the detector, monitoring measurements, performing real-time analysis and managing survey workflows.

Yes. The MS-700 supports Wi-Fi, Ethernet and RS-232 connectivity, allowing data to be streamed to compatible systems during a survey.

Yes. The system incorporates pressure, temperature and humidity (PTH) sensors alongside the gamma-ray spectrometer and GNSS.

Yes. The MS-700 supports RTK positioning when used with an appropriate RTK base-station configuration. The current Medusa specification gives RTK positioning accuracy of approximately 0.6 cm + 1 ppm CEP.

The Medusa MS-700 is a professional gamma-ray spectrometer designed for geophysical and agricultural surveys. It can be carried by a UAV or used for handheld surveys, providing measurements of naturally occurring and anthropogenic gamma radiation.

Yes. The MS-700 is specifically designed for drone-borne surveying, as well as handheld applications. Its payload weight of approximately 4.7 kg makes it suitable for appropriately specified professional UAV platforms.

The MS-700 uses a 700 ml CsI (caesium iodide) scintillation crystal. This provides greater detector volume than the MS-350 while maintaining a relatively compact UAV payload.

A larger scintillation crystal can detect more gamma-ray events over a given period, improving counting statistics and allowing efficient surveys. The 700 ml crystal provides a useful balance between sensitivity, survey speed and UAV payload weight.

The MS-700 provides online analysis of: Potassium-40 (⁴⁰K) Uranium-238 (²³⁸U) Thorium-232 (²³²Th) Caesium-137 (¹³⁷Cs) These measurements can be used to identify variations in geological, soil and environmental radiometric signatures.

Yes. The MS-700 can identify variations in gamma radiation and can support pollution and contamination mapping. The suitability of the detector and survey methodology will depend on the radionuclide and specific detection objective.

Yes. The MS-700 is designed for soil mapping, providing spatially referenced radiometric information that can help identify variations in soil and underlying geological materials.

The MS-700 has a typical mapping speed of up to 20 km/h, with a recording frequency of up to 5 Hz. Actual survey speed should be selected according to the required data quality, flight altitude, terrain and survey objectives.

The current MS-700 weighs approximately 4.7 kg and has dimensions of approximately 100 mm diameter × 295 mm long.

Yes. The system incorporates an integrated u-blox GNSS receiver for positioning survey measurements. The manufacturer’s current specification lists support for GPS, GLONASS, BeiDou and Galileo.

Accurate positioning allows individual gamma-ray measurements to be correctly located geographically. This is particularly important when producing detailed radiometric maps or comparing survey results from different dates.

Yes. Prospecting and geological surveying are key applications. Gamma-ray spectrometry can identify variations in naturally occurring potassium, uranium and thorium associated with different geological materials.

Yes. Contact JBUAS to discuss the Medusa MS-700 gamma-ray spectrometer, UAV integration, radiometric survey planning and applications including prospecting, soil mapping and pollution mapping. Looking for a professional UAV gamma-ray mapping system?
The Medusa MS-700 provides a high-capacity 700 ml CsI detector in a sub-5 kg payload, making it a strong option for detailed drone-based radiometric surveys.

Yes. The MS-700 combines a 700 ml scintillation detector, GNSS positioning, onboard processing, environmental sensors, internal storage and dedicated gamma-ray analysis software in a UAV-compatible package.

Yes. Medusa provides extensive technical documentation and support resources for its detector systems, while JBUAS can provide advice on UAV integration, survey planning and operational workflows.

Yes. JBUAS can provide integrated Medusa gamma-ray spectrometer systems, including UAV integration and associated survey technology. Its system bundles can include SkyHub, TTF radar, ODR radar, sensor systems, cabling and UgCS mission-planning software.

It can complement archaeological geophysical investigations by identifying variations in the radiometric properties of soils and geology. However, gamma-ray spectrometry is normally used alongside other techniques such as magnetometry, GPR, LiDAR or photogrammetry, depending on the objectives of the investigation.

Yes. Medusa specifically states that the MS-700 performs exceptionally well when flying low and slow, making it well suited to detailed radiometric surveying.

The main difference is detector volume and payload weight: The MS-700 provides a larger detector for applications where increased sensitivity and survey efficiency are important, while the MS-350 offers a lighter UAV payload.

The manufacturer’s specification gives up to 8 hours of battery operation. For UAV surveys, actual flight duration will normally be determined by the drone, payload configuration, battery capacity and flight conditions.

The MS-700 accepts an input voltage of 5–35 V and has a typical power consumption of approximately 3 W, with maximum consumption of approximately 6 W.

The manufacturer’s specification gives an operating temperature range of -20°C to +65°C, allowing the system to be used in a wide range of field environments.

The MS-700 has an IP65 rating, providing protection against dust and water jets.