Once it has got into the blood, it is distributed so widely that it becomes a whole-body dose of radiation.

一旦它与血液融合，便会随着血液流遍全身，全身的血液变因此含有放射性的元素。

youdao

A full-body CT scan gives a radiation dose of 20-30 millisieverts.

一次全身CT扫描的辐射剂量是20 ~ 30毫希弗。

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Radiation sickness (or acute radiation syndrome) usually sets in after a whole-body dose of three sieverts-3,000 times the recommended public dose limit per year, Langhorst says.

Langhorst说，辐射疾病(或急性辐射综合征)通常发生于全身辐射水平超过3000毫希以上，为每年公众允许辐射上限的3000倍。

youdao

The federal government has insisted ever since the TSA decided to install 300 full-body scanners, or strip searchers as critics call them, that getting a small dose of radiation is safe.

FORBES: Would You Rather Risk Getting Cancer Or Just Get Your Privates Patted?

Professor Joe Sedat says that even though the radiation dose may be low, it may be intense where it hits certain parts of the body like the cornea, the testicles or the skin.

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