Göttingen 2025 – wissenschaftliches Programm

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ST: Fachverband Strahlen- und Medizinphysik

ST 3: Radiation Monitoring and Dosimetry

ST 3.4: Vortrag

Mittwoch, 2. April 2025, 11:45–12:00, ZHG003

Development of an electronic read out board for analog and digital data acquisition of a semiconductor neutron detector — •Janina Bolles, Kevin Kröninger, Jens Weingarten, and Alina Landmann — TU Dortmund University

Neutrons are biological highly effective particles which leads to an increased health risk in work and research spaces where neutron or neutron/photon mixed fields are present. This includes medical facilities like nuklear and radiation medicin, nuclear reactor facilities and also the field of aeronautics and astronautics. Therefore, a proper neutron dosimetry is highly relevant to ensure radiation protection in such working areas. Still, the biological consequences and dosimetry of neutrons are afflicted by rather large uncertainties due to the complexity of neutron interactions. This work contributes to the optimization of measurement methods to estimate the neutron flux by developing a semiconductor detector for real time measurements. For the neutron detection a silicon diode with a boron carbide converter was designed previously within this project. Now, for a more compact read out handling and a faster data acquisition a first prototype of an electronic read out board was developed including an integrating amplifier and a simple pulse shaper. For future board versions more noise filtering components and a digitial read out system are intended. We will present first results of the neutron detection with the improved read out design.

Keywords: Neutrons; Electronic read out; Detector physics; Dosimetry