Göttingen 2025 – scientific programme
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ST: Fachverband Strahlen- und Medizinphysik
ST 3: Radiation Monitoring and Dosimetry
ST 3.3: Talk
Wednesday, April 2, 2025, 11:30–11:45, ZHG003
Development of an H*(10) neutron dosimeter based on the TL-DOS for neutron and gamma dose measurements at TRIGA reactor Mainz — •Andria Michael1, Kevin Kröninger1, Marion Schulte2, Jörg Walbersloh2, and Jens Weingarten1 — 1University of Dortmund, Dortmund, Germany — 2Materials Testing Office, Dortmund, Germany
The PhyBioN project, involving the TU Dortmund, Materialprüfungsamt Nordrhein-Westfalen, and University Medical Center Mainz, aims to address critical gaps in neutron radiation research by providing precise neutron dosimetry and improving our understanding of the radiobiological effects of neutron exposure.
The TRIGA Mark II research reactor at the University of Mainz, equipped with a graphite thermal column, provides a source of thermalized neutrons suitable for the study of radiobiological effects of neutron exposure. For this study, the neutron field in the thermal column must be characterized. An ambient neutron dosimeter, H*(10), is being developed, specifically tailored for the TRIGA Mainz reactor. The dosimeter is based on the TL-DOS, which uses the thermoluminescence (TL) effect for personnel monitoring in photon fields. The design and optimization of the neutron dosimeter are conducted using Monte Carlo simulations. The dosimeter response is characterized using neutron reference fields and correction factors for angular and energy dependencies are defined. This talk will present the status of the dosimeter development and the measurements obtained at the TRIGA reactor.
Keywords: Neutron Radiation Research; Neutron Dosimetry; Thermoluminescence Detectors