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Irradiator Commissioning and Dosimetry for Assessment of LQ α and β Parameters, Radiation Dosing Schema, and in vivo Dose Deposition
Published on: March 11, 2021
Radiation transport calculations for cosmic radiation
1Nuclear Science and Engineering Directorate, Japan Atomic Energy Agency, Tokai-mura, Ibaraki 319-1195, Japan. endo.akira3@jaea.go.jp
Annals of the ICRP
|October 24, 2012
Summary
This study details computer codes for simulating space radiation transport. These tools help analyze radiation exposure inside spacecraft and assess organ doses for astronaut safety.
Area of Science:
- Space radiation physics and dosimetry
- Computational modeling of particle transport
- Radiation protection in space exploration
Background:
- Spacecraft radiation environments comprise primary cosmic rays and secondary particles from interactions.
- Astronaut radiation exposure differs from external fields due to self-shielding and nuclear reactions.
- Accurate simulation of radiation transport is crucial for crew safety.
Purpose of the Study:
- To review methods and computer codes for cosmic radiation transport calculations.
- To analyze radiation fields within spacecraft.
- To evaluate organ doses and calculate dose conversion coefficients for astronauts.
Main Methods:
- Utilizing coupled transport computer codes for protons, heavy ions, and secondary radiation.
- Simulating physical processes of radiation interactions in matter.
- Applying reference phantoms from ICRP Publication 110 for dose assessment.
Main Results:
- Demonstrated application of computer codes for shielding design and instrument response simulation.
- Enabled analysis of absorbed doses and quality factors in organs and tissues.
- Facilitated calculation of dose conversion coefficients for radiation protection.
Conclusions:
- Computer codes are essential for understanding and mitigating space radiation risks.
- Accurate modeling supports effective radiation shielding and biological effect studies.
- This work provides a foundation for robust space radiation protection strategies.
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