I am searching for a software/method, possibly open-source or free, to estimate the radiation dose for an orbit around earth.
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1$\begingroup$ SPENVIS (Space Environment Information System) is free to use. $\endgroup$– XukraoCommented Dec 13, 2021 at 21:27
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$\begingroup$ @Xukrao if that satisfies the OP"s description then I think you can post it as an answer if you like. Just add a sentence or two describing it, which can be simply copy/pasted and quoted from the site's description. $\endgroup$– uhohCommented Dec 13, 2021 at 21:45
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SPENVIS is free to use. It is described on its website as:
SPENVIS is ESA's SPace ENVironment Information System, a WWW interface to models of the space environment and its effects; including cosmic rays, natural radiation belts, solar energetic particles, plasmas, gases, and "micro-particles".
With SPENVIS, one can generate a spacecraft trajectory or a coordinate grid and then calculate:
- geomagnetic coordinates
- trapped proton and electron fluxes and solar proton fluences
- radiation doses (ionising and non-ionising) for simple geometries
- a sectoring analysis for dose calculations in more complex geometries
- damage equivalent fluences for Si, GaAs and multi-junction solar cells
- Geant4 Monte Carlo analysis for doses and pulse height rates in planar and spherical shields
- ion LET and flux spectra and single event upset rates
- trapped proton flux anisotropy
- atmospheric and ionospheric densities and temperatures
- atomic oxygen erosion depths
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$\begingroup$ SPENVIS has been used on at least two NASA funded missions. $\endgroup$– ChrisRCommented Dec 15, 2021 at 1:40