| 单词 | roentgen |
| 例句 | They proposed that the allowable daily dosage for a human being should be one-hundredth of a roentgen, about a tenth of the standard applied to X-rays. Big Science 2015-07-07T00:00:00Z And while the older tunnel is reinforced with timber, Alvarez said, “according to a 1997 DOE report, inspection of the tunnels ‘is not feasible because of radiation levels in excess of five roentgens per hour.’ Tunnel collapses at Hanford nuclear waste site in Washington state 2017-05-09T04:00:00Z The roentgen, describing air ionization, became a measurement in coulombs per kilogram. Modernize radiation measurements to save lives 2016-09-12T04:00:00Z An additional 22 individuals received gamma exposures between 4 and 15 roentgens. Project Trinity 1945-1946 The needle slowly rose and steadied at one-half roentgen per hour as he thrust the probe over the rim of the depression. The Lani People One of the drivers of the earth-sampling group's lead-lined tank, an Army sergeant who traveled three times to ground zero, received an exposure of 15 roentgens. Project Trinity 1945-1946 Three members of the earth-sampling group, all of whom traveled in the tank to ground zero, received exposures of 10, 7.5, and 5 roentgens. Project Trinity 1945-1946 The activities and times of exposure are not known for other personnel with exposures over 2 roentgens. Project Trinity 1945-1946 A second tank driver, also an Army sergeant, received an exposure of 3.3 roentgens. Project Trinity 1945-1946 The guards' film badge readings showed an average daily exposure of 0.02 roentgens. Project Trinity 1945-1946 Only 11 people received exposures of 3 to 5 roentgens between 20 July and 21 November. Project Trinity 1945-1946 Twenty-three of these individuals received exposures greater than 2 but less than 4 roentgens; another 22 individuals received between 4 and 15 roentgens. Project Trinity 1945-1946 Of these personnel, the individual who received the highest exposure during the three days was an Army sergeant who received 15 roentgens. Project Trinity 1945-1946 |
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