Calibration of RADMON radiation monitor onboard Aalto-1 CubeSat

Research output: Contribution to journalArticleScientificpeer-review


  • 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

Research units

  • University of Turku
  • NASU - Institute of Radio Astronomy
  • University of Helsinki


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

    Research areas

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

ID: 39752597