milliroentgen การใช้

Radioactive contamination at the crater lip amounted to 0.5 milliroentgen.
Kazak nuclear scientists at the Institute of the Radiation Control Department told Interfax the material was emitting about 1, 200 milliroentgen per hour, enough to cause radiation sickness in a person after 50 days of exposure.
During a survey of surface soil in June 1994, " hot spots, " areas of higher radioactivity, were found within the burial ground with activities ranging from 0.1 to 50 milliroentgen ( mR ) / hour.