Related Experiment Videos
Dosimetry inside MIR station using a silicon detector telescope (DOSTEL).
R Beaujean1, J Kopp, S Burmeister
1Institut fur Experimentelle und Angewandte Physik, Universitat Kiel, Kiel, Germany. r.beaujean@email.uni-kiel.de
Radiation Measurements
|November 21, 2002
Summary
The Dosimetry Telescope (DOSTEL) measured space radiation dose rates aboard the MIR orbital station. It found significant contributions from Galactic Cosmic Rays (GCR) and the South Atlantic Anomaly (SAA).
Area of Science:
- Space physics
- Radiation dosimetry
- Astrobiology
Background:
- Space radiation poses risks to astronauts and equipment.
- Understanding radiation components is crucial for mission planning and safety.
Purpose of the Study:
- To measure absorbed dose rates and quality factors in Earth orbit.
- To analyze the contributions of different radiation components (GCR, SAA, SEP).
- To investigate temporal variations in radiation levels.
Main Methods:
- Utilized the Dosimetry Telescope (DOSTEL) on the MIR orbital station (Oct 1997 - Jan 1998).
- Analyzed Linear Energy Transfer (LET) spectra to determine dose rates and quality factors.
- Differentiated contributions from Galactic Cosmic Rays (GCR) and the South Atlantic Anomaly (SAA).
Main Results:
- Mission average absorbed dose rates were 126 ± 4 microGy/d (GCR) and 121 ± 13 microGy/d (SAA).
- Mean quality factors (ICRP60) were 3.5 ± 0.2 for GCR and 1.3 ± 0.1 for SAA.
- Data also includes LET spectra for solar energetic particles (Nov 6, 1997 event).
Conclusions:
- DOSTEL provided detailed dosimetry data from the MIR space station.
- GCR and SAA were the primary radiation contributors during the mission.
- The study highlights the importance of characterizing space radiation environments for human spaceflight.