Very High Radiation Area. 500 rads in 1 hour at 1 m from the source. Should the source of radioactive materials exceed 500 rads per hour at one meter then the sign must read grave danger, very high radiation area.
Radiation area, high radiation area, very high radiation area; 100 mrem in 1 hour at 30 cm from the source or shield surface:
In Addition To The Requirements In § 20.1601, The Licensee Shall Institute Additional Measures To Ensure That.
Unauthorized personnel access to high and very high radiation areas.
§ 20.1602 Control Of Access To Very High Radiation Areas.
An area, accessible to individuals, in which radiation levels from radiation sources external to the body could result in an individual receiving an absorbed dose in excess to 500 rad.
High Radiation Area Means An Area, Accessible To Individuals, In Which Radiation Levels From Radiation Sources External To The Body Could Result In An Individual Receiving A Dose.
Images References :
Very High Radiation Area Is An Area In Which An Individual Could Receive From Radiation Sources An Absorbed Dose In Excess Of 500 Rad (5 Gy) In 1 H At 1 M From The Source.
A high natural radiation zone was investigated for the first time in afra hot springs of jordan.
The Licensee Shall Post Each Radiation Area With A Conspicuous Sign Or Signs.
Dangerous cosmic rays will pass near earth tonight, causing bodily harm if you keep personal electronics near you.
