—
aeroplane you are above the surfnce of the
ground and ve want to get an idea of what
the radiation is at the curface or cloce to
the surface,
50, we have picked a value
of measurement at three feet as our feference which shows approximately what a person
carrying an instrument on the ground would
use, before giving an estinste that is, of
total body exposure,
Over the course of several tests
we have developed a series of factors s0
that we can multiply the radiation intensity
obtained in the aeroplane by these factors
at any altitude from epproximately fifty
feet to fifteen hundred feet to determine
what the radiation of three feet per sure
face
4s.
The rader altimeter gives us the
absolute distance from the alroraft to the
surface and not to gee them or some other
arbitrary reference euch ag the barometric
altimeter would give you.
The DC signal is confined to this
and this comperisated signal fe then fed to
a telemetering unit which is called the ‘telemeter information station,
Here the DC signal which is
ms