Unfortunately this idea is impractical for warm-blooded creatures, whose body temperature is strictly regulated... at least until it isn't, at which point they're no longer much good for seeing photons because they're busy being treated for hypothermia.
Although I'm sure that Rutherford and Geiger, or their grad students, were quite happy to avoid the necessity of performing their human photomultiplier experiments while sitting in a chilled room.
Unfortunately this idea is impractical for warm-blooded creatures, whose body temperature is strictly regulated... at least until it isn't, at which point they're no longer much good for seeing photons because they're busy being treated for hypothermia.
Although I'm sure that Rutherford and Geiger, or their grad students, were quite happy to avoid the necessity of performing their human photomultiplier experiments while sitting in a chilled room.