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Related Experiment Videos

Issues in space radiation protection: galactic cosmic rays

J W Wilson1, M Kim, W Schimmerling

  • 1NASA Langley Research Center Hampton, VA 23681-0001.

Health Physics
|January 1, 1995
PubMed
Summary
This summary is machine-generated.

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Protecting astronauts from cosmic heavy ions requires better understanding of radiation properties and biological responses. Current space shielding technology is reviewed, highlighting the need for improved knowledge for optimal material selection.

Area of Science:

  • Space radiation physics and biology
  • Materials science for aerospace applications

Background:

  • Limited understanding of cosmic heavy ion properties and biological effects hinders effective space radiation shielding.
  • Current space shielding practices and their impact on astronaut health require critical evaluation.

Purpose of the Study:

  • To discuss the current status of space shielding technology and its impact on radiation health.
  • To analyze the influence of biological response on the selection of optimal shielding materials.
  • To present the transmission characteristics of shield materials concerning cosmic ray shielding.

Main Methods:

  • Review of conventional space protection practices.
  • Application of a test biological response model.
  • Analysis of material transmission characteristics for cosmic ray shielding.

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Main Results:

  • Liquid hydrogen is identified as an optimal shielding material based on current understanding.
  • The effectiveness of polymeric structural materials for shielding is currently limited by knowledge gaps.
  • Biological response significantly impacts the selection of effective shielding materials.

Conclusions:

  • Further research is needed to improve our understanding of biological responses to space radiation.
  • Enhanced knowledge of nuclear processes is crucial for evaluating shielding material effectiveness.
  • Advancements in understanding radiation effects are necessary for optimizing future space shielding strategies.