ICDA-5

Session

Dosimetry in aircrafts and space

Jun 8, 2026, 2:00 PM

CTU in Prague, Faculty of Nuclear Sciences and Physical Engineering (Prague, Czechia)

30. From Device Cross-Sections to Mission Reliability: A Geant4-Based Evaluation of Shielding and Interleaving for SEU Mitigation

AAMIR FAROOQ (Chang Gung University (CGU), Taiwan), Prof. Tsi-Chian Chao (Department of Medical Imaging and Radiological Sciences, Chang Gung University, Taoyuan, Taiwan)

6/8/26, 2:00 PM

Dosimetry in aircrafts and space

Oral Presentation

Radiation-induced single-event upsets (SEUs) in advanced nanoscale memories present a major reliability challenge for CubeSat missions operating in proton-rich space environments. This work investigates SEUs in a realistic 14 nm FinFET (FF) memory array using Geant4 simulations under 1–500 MeV proton irradiation. A 2D array of 83 × 53 FF devices was modeled within a 7 × 7 µm² silicon cell...

125. SpacePix Chip Evolution for Space Dosimetry

Radek Novotný (CTU FNSPE)

6/8/26, 2:15 PM

Dosimetry in aircrafts and space

Oral Presentation

We present the results from the space mission VZLUSAT-2, where our novel space dosimetry system based on the SpacePix2 chip was successfully tested in orbit. The detector system operated continuously over an extended period, demonstrating stable performance in low Earth orbit and providing valuable data on the space radiation environment. The system’s ability to distinguish between different...

188. Selecting a Primary Quantity for Aviation Radiation Databases: Uncertainty Comparison of 𝐻∗(10) and 𝐷𝑆𝑖 in the REFLECT3 Research Flight

Lucie Švihrová (Nuclear Physics Institute of the Czech Academy of Sciences, Husinec-Rez, Czechia; Faculty of Nuclear Sciences and Physical Engineering, Czech Technical University in Prague, Czechia)

6/8/26, 2:30 PM

Dosimetry in aircrafts and space

Oral Presentation

Cosmic radiation at commercial flight altitudes represents a mixed high-energy field whose spectral composition and particle balance vary with geomagnetic latitude, altitude, and solar modulation. These variations influence detector response and introduce systematic uncertainties into routinely reported operational quantities such as ambient dose equivalent 𝐻∗(10).
This study examines how...