Microdosimetric measurements of shielding effects for iron particles at 500 MeV/nucleon incident upon aluminum and polyethylene
The radiation environment in space is very different than on the earth. One portion of the radiation present in space is galactic cosmic radiation (GCR). GCR is composed of protons, alpha particles, and high Z and energy (HZE) particles. One of the most significant HZE particle species in terms of absorbed dose is iron. One of the dosimetry instruments used on the Space Shuttle and the International Space Station is the tissue equivalent proportional counter (TEPC). It is used to measure absorbed dose and estimate the average quality factor of radiation exposure during manned space missions. ...
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