Numerical Simulation of Liulin-MO Instrument for Measuring Cosmic Radiation Onboard ExoMars Trace Gas Orbiter

Authors

  • Krasimir Krastev Space Research and Technology Institute, Bulgarian Academy of Sciences
  • Jordanka Semkova Space Research and Technology Institute, Bulgarian Academy of Sciences
  • Rositza Koleva Space Research and Technology Institute, Bulgarian Academy of Sciences

DOI:

https://doi.org/10.7546/CRABS.2023.11.07

Keywords:

numerical simulation, space radiation measurements, galactic cosmic rays, linear energy transfer

Abstract

We present the results from numerical simulation of Liulin-MO instrument for measurement of the space radiation on board Trace Gas Orbiter (TGO) satellite of ExoMars-2016 mission during its transit to Mars in April-September 2016 [Semkova J., T. Dachev, St. Maltchev, B. Tomov, Yu. Matviichuk} et al. (2015) Radiation environment investigations during ExoMars mission to Mars – objectives, experiments and instrumentation, C. R. Acad. Bulg. Sci., 68 (4), 485–496] [Semkova J., R. Koleva, V. Benghin, T. Dachev, Yu. Matviichuk et al. (2018) Charged particles radiation measurements with Liulin-MO dosimeter of FREND instrument aboard ExoMars Trace Gas Orbiter during the transit and in high elliptic Mars orbit, Icarus, 303, 53–66], using the Geant4 package. The methodology for calculating galactic cosmic rays (GCR) linear energy transfer (LET) is described. A methodology for screening false signals in the deposited energy spectra in the Liulin-MO detectors and correspondingly LET spectra is proposed. The contribution of the individual components of the spectrum of GCR in the LET spectrum is estimated. The calculated average radiation quality factor of GCR using the cleaned from false signals LET spectrum is compared with the experimental results obtained during the transit to Mars and a reasonable agreement is observed.

Author Biographies

Krasimir Krastev, Space Research and Technology Institute, Bulgarian Academy of Sciences

Mailing Address:
Space Research and Technology Institute,
Bulgarian Academy of Sciences
Akad. G. Bonchev St, Bl. 1
Sofia 1113, Bulgaria

E-mail: werholak@abv.bg

Jordanka Semkova, Space Research and Technology Institute, Bulgarian Academy of Sciences

Mailing Address:
Space Research and Technology Institute,
Bulgarian Academy of Sciences
Akad. G. Bonchev St, Bl. 1
Sofia 1113, Bulgaria

E-mails: jsemkova@stil.bas.bg,
jordankasemkova@gmail.com

Rositza Koleva, Space Research and Technology Institute, Bulgarian Academy of Sciences

Mailing Address:
Space Research and Technology Institute,
Bulgarian Academy of Sciences
Akad. G. Bonchev St, Bl. 1
Sofia 1113, Bulgaria

E-mail: rkoleva1900@gmail.com

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Published

27-11-2023

How to Cite

[1]
K. Krastev, J. Semkova, and R. Koleva, “Numerical Simulation of Liulin-MO Instrument for Measuring Cosmic Radiation Onboard ExoMars Trace Gas Orbiter”, C. R. Acad. Bulg. Sci. , vol. 76, no. 11, pp. 1698–1706, Nov. 2023.

Issue

Section

Space Sciences