An empirical formula for calculating the threshold dose is presented.

在实验的基础上给出了一个计算剂量阈值的公式。

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Below the threshold dose level, no adverse events above the response at the control level which is called the background response occur, then background response also occurs at the threshold level.

当剂量水平低于这个门阀剂量水平时，该剂量水平下的反应要比控制剂量下的反应即背景反应低，并且本文假定该门阀剂量水平下的反应与背景反应相同。

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If the dose of radiation exceeds a certain threshold level, then it can produce acute effects, such as skin redness, hair loss, radiation burns, and acute radiation syndrome (ARS1).

如果辐射剂量超过一定的阈值水平，那么它可以产生，如皮肤发红，脱发，辐射烧伤和和急性辐射综合症(ARS1)等急性影响。

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All dose limits are presently determined by using the Linear No-Threshold dose hypothesis (LNT).

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The straight-line portion of these types of curves above Earth background has been the basis for the Linear No-Threshold Dose hypothesis, or LNT.

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The committee has concluded that there is no compelling evidence to indicate a dose threshold below which the risk of tumor induction is zero.

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