Calibration of RADMON radiation monitor onboard Aalto-1 CubeSat

Philipp Oleynik*, Rami Vainio, Arttu Punkkinen, Oleksiy Dudnik, Jan Gieseler, Hannu Pekka Hedman, Heli Hietala, Edward Hæggström, Petri Niemelä, Juhani Peltonen, Jaan Praks, Risto Punkkinen, Tero Säntti, Eino Valtonen

*Corresponding author for this work

Research output: Contribution to journalArticleScientificpeer-review

1 Citation (Scopus)


RADMON is a small radiation monitor designed and assembled by students of University of Turku and University of Helsinki. It is flown on-board Aalto-1, a 3-unit CubeSat in low Earth orbit at about 500 km altitude. The detector unit of the instrument consists of two detectors, a Si solid-state detector and a CsI(Tl) scintillator, and utilizes the ΔE-E technique to determine the total energy and species of each particle hitting the detector. We present the results of the on-ground and in-flight calibration campaigns of the instrument, as well as the characterization of its response through extensive simulations within the Geant4 framework. The overall energy calibration margin achieved is about 5%. The full instrument response to protons and electrons is presented and the issue of proton contamination of the electron channels is quantified and discussed.

Original languageEnglish
JournalAdvances in Space Research
Publication statusE-pub ahead of print - 2 Dec 2019
MoE publication typeA1 Journal article-refereed


  • CubeSats
  • Electron precipitation
  • Radiation belts
  • Solar energetic particles

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  • Projects

    Finnish Centre of Excellence in Research of Sustainable Space

    Jovanovic, N., Ylä-Oijala, P., Nyman, L., Praks, J., Riwanto, B., Bosser, A., Niemelä, P., Slavinskis, A. & Nath, A.


    Project: Academy of Finland: Other research funding

    Cite this

    Oleynik, P., Vainio, R., Punkkinen, A., Dudnik, O., Gieseler, J., Hedman, H. P., ... Valtonen, E. (2019). Calibration of RADMON radiation monitor onboard Aalto-1 CubeSat. Advances in Space Research.