2025/11/07 by Sovare, Nicolas J., Shmayda, Walter T.
Energy · Environmental Science · Engineering · #Advanced Energy Technologies and Civil Engineering Innovations #Radioactive contamination and transfer #Radiation Effects in Electronics
paper · doi:10.48550/arxiv.2511.05340
Ionization chamber-based, in-line tritium process monitors play an important part in determining the behavior of a tritium system. The one-liter detection volume monitor has been characterized well through experiment and to respond linearly to tritium concentrations for the range of 1 μCi/m3 to 1 Ci/m3. Additionally, it has been shown to behave nonlinearly for low voltage on the central anode and low pressure of the carrier gas. A computational model was developed from first principles that successfully describes the behavior of the one-liter monitor for each of these regimes. Predictions from the model are compared to previously-collected experimental data in order to determine validity and tune the model. The model will be expanded to incorporate additional detector geometries and designs in the future.