Technical Characteristics and High-Penetration Power
-
High Penetration Energy: The FSG61 is optimized for “extreme” applications. It provides the necessary energy to pass through significant material thicknesses (steel, lead, or concrete) that would completely attenuate standard-range sources.
-
Reinforced Safety Encapsulation: Like all industrial gamma sources, the FSG61 is double-encapsulated in a high-grade metallic capsule. It typically meets or exceeds ISO 2919 classification C66646, ensuring structural integrity against extreme thermal shock, vibration, and external pressure.
-
Optimized Dosage Control: Despite its high energy, the FSG61 can be ordered in specific activity levels. This ensures the radiation “dosage” is perfectly balanced—strong enough to reach the detector with a clear signal, but minimized to ensure safety and simplify radiation protection requirements.
-
Stable Point Source Design: Its design as a concentrated point source allows for a highly defined radiation path when used with a source container. This precision is vital for accurate density profiling and interface detection in complex separators.
Technical Specification Matrix
| Feature | Technical Details |
| Isotope | Typically 60Co (Cobalt) or high-activity 137Cs (Cesium) |
| Penetration Capability | Optimized for thick walls and large process spans |
| Safety Classification | Typically C66646 (ISO 2919 / DIN 25426) |
| Application | Continuous Level, Point Level, Density, Interface |
| Compatibility | FQG61, FQG62, FQG63, FQG66 high-activity containers |
Primary Applications
-
Thick-Walled High-Pressure Reactors: Measuring level in chemical reactors where wall thicknesses exceed the limits of standard radiometric sources.
-
Large Diameter Pipe Density: Monitoring the density of heavy slurries or chemicals in pipes with large diameters (e.g., >500mm) where high absorption occurs.
-
Extreme Density Ranges: Accurate measurement in media with very high density or where density fluctuations are massive, requiring a more “energetic” beam to maintain signal resolution.
-
Multi-Phase Separators: Mapping the interfaces between gas, oil, and water in massive offshore separators where the radiation must travel through several meters of fluid and steel.
-
Abrasive and Corrosive Solids: Point level detection in heavy-duty hoppers or cyclones where the vessel is lined with thick ceramic or wear-resistant materials.
