The Space Radiobiological Exposure Facility on the China Space Station.

Area of Science:

• Space Biology and Radiobiology
• Biotechnology
• Astrobiology

Background:

• The China Space Station hosts the Space Radiobiological Exposure Facility (SREF) for diverse scientific research.
• SREF is designed for experiments in space radiation protection, biology, biotechnology, and origin of life studies.
• The facility offers controlled temperature environments for organic molecules and various model organisms.

Purpose of the Study:

• To detail the capabilities and instrumentation of the Space Radiobiological Exposure Facility (SREF).
• To highlight SREF's role in advancing space radiation research and biotechnology.
• To showcase the facility's capacity for in-orbit experimentation and sample recovery.

Main Methods:

• Utilizing a controlled environment for experiments with organic molecules and model organisms (small animals, plant seeds, microorganisms).
• Employing microfluidic chips for small animal cultivation and microscopy for image/video capture.
• Integrating detectors for linear energy transfer (LET), neutrons, and solar ultraviolet (UV) radiation to characterize the space radiation environment.

Main Results:

• SREF provides a versatile platform for space-based biological and radiobiological research.
• The facility is equipped to monitor key space radiation parameters including charged particles, neutrons, and UV radiation.
• Model organisms were successfully cultured, experimented on, and recovered for post-flight analysis.

Conclusions:

• The Space Radiobiological Exposure Facility is a crucial asset for in-orbit scientific research.
• SREF's capabilities support advancements in understanding space radiation effects and developing protective measures.
• The facility's reusability and comprehensive monitoring systems facilitate long-term space biology studies.