The Mercury Gamma-Ray and Neutron Spectrometer (MGNS) Onboard the Mercury Planetary Orbiter of the BepiColombo Mission: Design Updates and First Measurements in Space

I. G. Mitrofanov, A. S. Kozyrev*, D. I. Lisov, M. L. Litvak, A. A. Malakhov, M. I. Mokrousov, J. Benkhoff, A. Owens, R. Schulz, F. Quarati

*Corresponding author for this work

Research output: Contribution to journalReview articleScientificpeer-review

1 Citation (Scopus)

Abstract

An updated set of goals and objectives for the Mercury Gamma and Neutron Spectrometer (MGNS) are presented based on the most recent findings of the MESSENGER mission. The updated design of MGNS with the new CeBr3 crystal for detection of gamma-ray along with its benefits for the detection of 40K and K/Th ratio are discussed. MGNS will then be capable of measuring the elemental composition of shallow subsurface in order to empirically evaluate the fittest model on the origin of Mercury, as well as the presence of possible water ice deposits on the permanently shadowed polar craters on the planet. We present the results of the first measurements in space performed during the instrument commissioning phase and during the first Earth flyby which occurred in April 2020.

Original languageEnglish
Article number67
Number of pages12
JournalSpace Science Reviews
Volume217
Issue number5
DOIs
Publication statusPublished - 2021

Keywords

  • BepiColombo
  • Gamma-ray spectroscopy
  • Mercury
  • MGNS
  • Nuclear planetology

Fingerprint

Dive into the research topics of 'The Mercury Gamma-Ray and Neutron Spectrometer (MGNS) Onboard the Mercury Planetary Orbiter of the BepiColombo Mission: Design Updates and First Measurements in Space'. Together they form a unique fingerprint.

Cite this