Schwalm, MichaelMichaelSchwalm2025-06-172025-06-172025-05-07https://publica.fraunhofer.de/handle/publica/488753In the event of incidents involving nuclear hazards, the correct use of the devices deployed for measuring and monitoring γ-radiation fields is essential for the mission success and the safety of all people involved. Accordingly, corresponding realistic practice is extremely important for all personal that could be confronted with such scenarios. Unfortunately, however, this is currently not feasible on a regular basis, as appropriate radioactive sources are only available at a few training-sites and the use of strong γ-radiation for this purpose imposes severe safety and health risks. Furthermore, commercially available training equipment is too expensive and not flexible enough for widespread use. The project SIEVERT has set itself the goal of creating an inexpensive and easy to use device for the realistic emulation of radiometers in freely definable scenarios. Using low-cost, readily available components, we have developed a prototype that is able to emulate γ-dose rate meters using high-precision satellite navigation. It allows any number, kind, activity and age of point sources as well as shielding elements of different nature and thickness, e.g. house walls, to be defined and their coordinates stored. The portable emulators determine their positions relative to the virtual sources and the shieldings in real-time with a precision of a few centimeters. They can thus continuously calculate and display the equivalent dose rates and the resulting doses that would be present at the respective locations in a real scenario. Also, effects such as inertia, limited measuring accuracy and background radiation are taken into account. They therefore behave like real dose rate meters in the corresponding situation. This allows - free of safety concerns and major organizational effort - to carry out realistic exercises anywhere and at any time. Since the spring of 2023, the prototype has been successfully in use in the Schwalm-Eder district for the training of fire fighters and disaster control personal. Furthermore, with the second place in the Hessian disaster control prize 2023 and the fourth place in the German disaster control prize - Helfende Hand 2023, it already recently received two important awards.enpresentation