PART D -THE AN/VDR-2 RADIAC SET
In order to understand the functions of the AN/VDR-2 RADIAC Set you
must be able to describe its purpose, characteristics, principles of
operation, and total dose range.
1.
Purpose.
The AN/VDR-2 RADIAC Set, (Figure 5-11), is used to locate and measure
radioactivity in the form of gamma rays and beta particles. This
instrument displays dose rates and total accumulated dose resulting
from a fallout field.
2.
Characteristics.
The AN/VDR-2 RADIAC Set is battery-operated by three 9-volt batteries
or by vehicle power and has the capability of alerting personnel to
contamination of gamma rays or beta particles by a visual or audible
alarm. The instrument features a liquid crystal display (LCD), which
provides a three-digit auto-ranging readout, with decimal point
placement for dose rate and accumulated dose measurement.
Figure 5-11.
AN/VDR-2 RADIAC Set
3.
Components.
The major components and their functions are--
a. Radiacmeter.
Contains batteries, controls, indicators, and electronics needed to
measure and display dose rate, dose, and other indicators.
b. Loudspeaker.
Provides audible alarm when set points are exceeded and indicates
operational faults.
5-15
IS0345
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