Combined environment simulator for low-dose-rate radiation and partial gravity of moon and mars

Akihisa Takahashi, Sakuya Yamanouchi, Kazuomi Takeuchi, Shogo Takahashi, Mutsumi Tashiro, Jun Hidema, Atsushi Higashitani, Takuya Adachi, Shenke Zhang, Fady Nagy Lotfy Guirguis, Yukari Yoshida, Aiko Nagamatsu, Megumi Hada, Kunihito Takeuchi, Tohru Takahashi, Yuji Sekitomi

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)


Deep space exploration by humans has become more realistic, with planned returns to the Moon, travel to Mars, and beyond. Space radiation with a low dose rate would be a constant risk for space travelers. The combined effects of space radiation and partial gravity such as on the Moon and Mars are unknown. The difficulty for such research is that there are no good simulating systems on the ground to investigate these combined effects. To address this knowledge gap, we developed the Simulator of the environments on the Moon and Mars with Neutron irradiation and Gravity change (SwiNG) for in vitro experiments using disposable closed cell culture chambers. The device simulates partial gravity using a centrifuge in a three-dimensional clinostat. Six samples are exposed at once to neutrons at a low dose rate (1 mGy/day) using Californium-252 in the center of the centrifuge. The system is compact including two SwiNG devices in the incubator, one with and one without radiation source, with a cooling function. This simulator is highly convenient for ground-based biological experiments because of limited access to spaceflight experiments. SwiNG can contribute significantly to research on the combined effects of space radiation and partial gravity.

Original languageEnglish
Article number274
Pages (from-to)1-13
Number of pages13
Issue number11
Publication statusPublished - 2020 Nov


  • Combined effect
  • Low-dose-rate radiation
  • Mars
  • Moon
  • Neutron
  • Partial gravity
  • Simulator

ASJC Scopus subject areas

  • Ecology, Evolution, Behavior and Systematics
  • Biochemistry, Genetics and Molecular Biology(all)
  • Space and Planetary Science
  • Palaeontology


Dive into the research topics of 'Combined environment simulator for low-dose-rate radiation and partial gravity of moon and mars'. Together they form a unique fingerprint.

Cite this