Question

Is gamma radiation detectable by humans without equipment?

Answer 1

do you specifically mean high energy photons i.e. emitted from a nucleus, or do you mean general photons of undetermined energy

Answer 2

i mean high energy photons emitted from a nucleus

Answer 3

no it is not detectable by humans. Gamma rays are usually naturally produced on Earth by decay of high energy states in atomic nuclei (gamma decay). Important natural sources are also high-energy sub-atomic particle interactions resulting from cosmic rays...

Answer 4

humans have no sense tuned to this frequency