Space Radiation Shielding

Zeitlin, C.

doi:10.1007/978-3-319-10152-1_28-2

Cited by 2 publications

(1 citation statement)

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“…Secondary radiation escaping the shield might be less harmful than the primary one (preferred feature) or can be even more harmful, depending on the nature of the incident flux and the chemical composition of the shield. The effects of nuclear interactions on the radiation environment behind the shield are very different in the two cases: proton-nucleus collisions tend to make the environment behind the shield more dangerous [17][18][19], whereas nucleus-nucleus collisions tend to do the opposite [20].…”

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confidence: 99%

Protons Interaction with Nomex Target: Secondary Radiation from a Monte Carlo Simulation with Geant4

et al. 2022

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The study of suitable materials to shield astronauts from Galactic Cosmic Rays (GCR) is a topic of fundamental importance. The choice of the material must take into account both the secondary radiation produced by the interaction between primary radiation and material and its shielding ability. The physics case presented here deals with the interaction of a proton beam with a Nomex shield, namely, a target material with a mass thickness of 20 g cm−2. The study was conducted with the simulation code DOSE based on the well-known simulation package Geant4. This article shows the properties of secondary radiations produced in the target by the interaction of a proton beam in an energy range characterizing the GCR spectrum. We observed the production of ions of masses and charges lower than the chemical elements that make up Nomex, and also a significant production of neutrons, protons, and 𝛼 particles.

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confidence: 99%