80 mSv: 6-month stay on the International Space Station
1 Sv: Maximum allowed radiation exposure for NASA astronauts over their career
5 Sv: Calculated dose from the neutron and gamma ray flash, 1.2 km from ground zero of the Little Boy fission bomb, air burst at 600 m
5.1 Sv: Fatal acute dose to Harry Daghlian in 1945 criticality accident
He died 25 days later
54 Sv: Fatal acute dose to Boris Korchilov in 1961 after a reactor cooling system failed on the Soviet submarine K-19 which required work in the reactor with no shielding
https://en.wikipedia.org/wiki/Sievert#Dose_examples
5–10 μSv: One set of dental radiographs
10–30 mSv: Single full-body CT scan
80 mSv: 6-month stay on the International Space Station
1 Sv: Maximum allowed radiation exposure for NASA astronauts over their career
5 Sv: Calculated dose from the neutron and gamma ray flash, 1.2 km from ground zero of the Little Boy fission bomb, air burst at 600 m
5.1 Sv: Fatal acute dose to Harry Daghlian in 1945 criticality accident
He died 25 days later
54 Sv: Fatal acute dose to Boris Korchilov in 1961 after a reactor cooling system failed on the Soviet submarine K-19 which required work in the reactor with no shielding
He died 6 days later