Calibration of RADMON radiation monitor onboard Aalto-1 CubeSat

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Journal Title
Journal ISSN
Volume Title
A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
Date
2020-07-01
Major/Subject
Mcode
Degree programme
Language
en
Pages
Series
Advances in Space Research
Abstract
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.
Description
Keywords
CubeSats, Electron precipitation, Radiation belts, Solar energetic particles
Other note
Citation
Oleynik , P , Vainio , R , Punkkinen , A , Dudnik , O , Gieseler , J , Hedman , H P , Hietala , H , Hæggström , E , Niemelä , P , Peltonen , J , Praks , J , Punkkinen , R , Säntti , T & Valtonen , E 2020 , ' Calibration of RADMON radiation monitor onboard Aalto-1 CubeSat ' , Advances in Space Research , vol. 66 , no. 1 , pp. 42-51 . https://doi.org/10.1016/j.asr.2019.11.020