> Most of the ionization energy dose deposited in a person
will come from interactions in the soil and other objects
in the person’s vicinity rather than from the more direct
process of neutrinos interacting inside a person. At TeV
energy scales, much less than one percent of the energy flux
from the daughters of such interactions will be absorbed in
the relatively small amount of matter contained in a person,
with the rest passing beyond the person.
If you're looking to get bit by a radioactive spider, spiders living down range of such a collider might be a decent place to start.
With high-energy particles the showers made when the particles hit something can be more dangerous than the original particles.
For instance if you are building a space colony there is an optimal thickness for the biological shield: most high energy particles blast right through you and if you have too much shielding there are too many opportunities for a particle to explode a nucleus in the shield and multiply the number of radioactive particles dramatically. Off the top of the head I'd say about six feet of soil is about right, but you don't do better with 60 feet or anything reasonable until you are talking multiple kilometers (maybe of vacuum or air space) that give shower muons time to decay.
Speaking of muons, it is an easy experiment often used in physics education to measure the the lifetime of cosmic ray muons produced in showers.
If a muon gets slowed down by matter you see a pulse of radiation, then you see a pulse of radiation a few microseconds later when the particle decays. If you measure the time gap in two-pulse events you can get the half-life. It was a popular experiment in Cornell's 510 lab for grad students who weren't particularly interested in doing experiments because it was so easy.
> Most of the ionization energy dose deposited in a person will come from interactions in the soil and other objects in the person’s vicinity rather than from the more direct process of neutrinos interacting inside a person. At TeV energy scales, much less than one percent of the energy flux from the daughters of such interactions will be absorbed in the relatively small amount of matter contained in a person, with the rest passing beyond the person.
If you're looking to get bit by a radioactive spider, spiders living down range of such a collider might be a decent place to start.