Roentgen in a sentence as a noun

He did not wear his dosimetry badge, but his dose was estimated to be at least 100 roentgen.

"500 roentgen" is something more like about the LD50 for generic radiation due to bone marrow effects, so you'd expect around half of those viewers to survive without treatment.

Meta-comment: how is it possible that 2 reasonable, informative comments from roentgen are being downvoted?

Roentgen definitions

noun

a unit of radiation exposure; the dose of ionizing radiation that will produce 1 electrostatic unit of electricity in 1 cc of dry air

noun

German physicist who discovered x-rays and developed roentgenography (1845-1923)

See also: Roentgen Rontgen