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1

All high bias detectors experience electronics noise which rises roughly exponentially toward low energy. Add to that the (single, double, ...) Compton edges from the lines you are trying to sample and you can expect a lot of background down there without needing there to be any actual x-rays flying around in those energies. Most of the Ortec devices run ...

0

You cannot "see" a flash if the eye receives no stimulus even though the brain is directly hit by a neutrino and it would be impossible to detect it because: 1) There is no receptor of this sort in the brain. 2) A neutrino has an extremely tiny mass. I can assure you that if the human body was capable of detecting an individual subatomic particle colliding ...

19

The cross-section for neutrino interactions is energy dependent. For solar neutrinos at $\sim 0.4$ MeV, which would likely dominate any neutrinos likely to interact (the cosmic background neutrinos have way low energies) , the cross-sections are $\sigma \sim 10^{-48}$ m$^2$, for both leptonic processes (elastic scattering from electrons) and ...

6

If you are that fast in detecting light, you are seeing cosmic ray muons. They are charged and leave an ionizing track in anything they cross and Cerenkov light. in liquid, and the eye is mainly liquid. They are the most numerous energetic particles arriving at sea level, with a flux of about 1 muon per square centimeter per minute. This can be ...

0

This definitely is not a neutrino. Neutrinos are hard to detect because they are light, quick, and have no charge, making them usually pass through matter. We build giant machines to detect single neutrinos. The chances of this happening extremely low.

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