How hydrogen can be used as a protection material in space?
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This article is a good tutorial on the subject:NASA - Radiation Shielding Materials Containing Hydrogen, Boron, and Nitrogen: Systematic Computational and Experimental Study
If you'll notice, it's not just hydrogen that's the shielding material. In general, materials with low atomic numbers ("low-Z" is the commonly used term) make good radiation shielding for neutrons and charged particles. They aren't as effective with high-energy photons such as hard x-rays or gamma radiation.
If you'll notice, it's not just hydrogen that's the shielding material. In general, materials with low atomic numbers ("low-Z" is the commonly used term) make good radiation shielding for neutrons and charged particles. They aren't as effective with high-energy photons such as hard x-rays or gamma radiation.
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