Validation of the new data-acquisition system for the GAINS spectrometer through neutron-induced cross-section measurements of 28Si and 14N
Nuclear energy and radiation technologies rely on precise knowledge of how atomic nuclei behave. To improve this knowledge, scientists perform detailed experiments that measure how materials respond to incoming particles such as neutrons. However, these experiments depend heavily on the quality and reliability of the instruments used to record the data.
In his thesis, Ali Farzanehpoor Alwars tested and validated a new digital data-acquisition system for the GAINS spectrometer. This system is responsible for recording very fast signals produced when neutrons interact with materials and emit gamma rays. By improving how these signals are captured and processed, the new system allows for more accurate measurements.
Experiments were carried out at a European research facility where neutrons are produced and directed onto materials containing silicon and nitrogen. When these materials are hit by neutrons, they emit gamma radiation, which can be measured to better understand nuclear reactions. Farzanehpoor Alwars used advanced analysis methods and computer simulations to interpret the data and determine how efficiently the detector system works.
The results show that the upgraded system performs reliably and produces measurements that agree well with previous experiments and theoretical models. This confirms that the new setup is suitable for future high-precision studies.
Overall, this work contributes to improving the accuracy of nuclear data, which is important for applications in energy production, medical technology, and radiation safety.