2021年3月9日 · Derived Air Concentration-Hour (DAC-hour) The product of the concentration of radioactive material in air (expressed as a fraction or multiple of the derived air concentration …

The DAC is the activity concentration in air in units of Bq/m 3 of the radionuclide considered, which would lead to an intake of an ALI (Bq) assuming a gender-averaged breathing rate of …

Derived Air Concentration (DAC) • The concentration of a single radionuclide in air that if breathed by reference man for a full working year (2000 hours), would result in an intake of one ALI. • …

2021年7月21日 · The derived air concentration (DAC) values are derived limits intended to control chronic occupational exposures. The relationship between the DAC and the ALI is given by: …

The terms DAC and DAC-hr can be easily related to the terms dose rate and dose. The term DAC relates a dose rate where if the airborne radioactivity is at a one DAC level, the dose rate in …

The DAC values relate to one of two modes of exposure: either external submersion or the internal committed dose equivalents resulting from inhalation of radioactive materials. Derived …

Converts all common units of radioactivity measurement including activity units, dose equivalent units and absorbed dose units.

2021年8月12日 · The DAC is the activity concentration in air in Bq m-3 of the radionuclide considered that would lead to intake of an annual limit on intake (ALI) assuming a sex …

DAC 是数字量到模拟量的转换器。 DAC可以由 软件 触发，也可以由定时器或外部中断信号触发。 STM32G474有4个DAC模块。 每个DAC模块有1个或2个DAC转换器，每个转换器对应一个输 …

According to 10 CFR 20.1003 [Title 10 – Energy; Chapter I -- Nuclear Regulatory Commission; Part 20 -- Standards for Protection Against Radiation; Subpart A -- General Provisions], the …