Search results
May 3, 2018 · Using a technique called electron spin resonance, the researchers measured that the jawbone had absorbed 9.46 grays of radiation from the Hiroshima attack. (A gray or Gy is a unit used to measure the amount of radiation absorbed by an object or a person.)
May 1, 2018 · The jawbone of a Hiroshima casualty — belonging to a person who was less than a mile from the bomb's hypocenter — is helping researchers determine how much radiation was absorbed by the bones ...
May 3, 2018 · As Laura Geggel reports for Live Science, the research team used a technique called Electron Spin Resonance spectroscopy to learn the jawbone contained 9.46 grays, or Gy (the unit to measure...
- Julissa Trevino
Here and there, I found some information about the amount of radiation received by some survivors. The problem is, it’s all expressed in different units of measurement: Anatoly Dyatlov: 490 rads or 3.9 Sv. Aleksandr Yuvchenko: 4.1 Sv. Viktor Smagin: 2.8 Gy. Pyotr Palamarchuk: 780 rems.
Although radiation affects different people in different ways, it is generally believed that humans exposed to about 500 rem of radiation all at once will likely die without medical treatment.
Doses greater than 100 rem received over a short time period are likely to cause acute radiation syndrome (ARS), possibly leading to death within weeks if left untreated. Note that the quantities that are measured in rem were not designed to be correlated to ARS symptoms.
The maximum permitted radiation leakage for a nuclear power plant is equivalent to 2,500 BED (250 μSv) per year, while a chest CT scan delivers 70,000 BED (7 mSv). An acute lethal dose of radiation is approximately 35,000,000 BED (3.5 Sv, 350 rem).
