DELETED {paxkorA)
Project 6.4 = Determination of Characteristics of Airborne Flush Mounted
Antennas and Photo Tubes for Yield Determination at Extend-
ed Ground-to-Air Ranges - Allan J, Waters
Objectives
To determine the effectiveness of flush mounted airborne antennas and
phototubes at various ground-to-air ranges in detecting characteristic low
frequency electromagnetic radiation and visible radiation, respectively.
To determine the temporal and amplitude characteristics of the low
frequency electromagnetic radiation at various ground-to-air ranges.
To determine the temporal and intensity characteristics of visible
radiation at various ground-to-air ranges.
To determine the effects of ambient conditions upon the satisfactory
measurement of the parameters specified in items 1 and 2 above,
Instrumentation
2 fiducial antennas
2 scope cameras
1 whip antenna
1 sequence camera
1 synchronizer
1 recorder
2 photoheads
2 DuMont Scopes (1 a dual beam, 1 a single beam)
Technique
Signal is received by antenna fed through an amplifier and then to
the scope.
The signal is then photographed.
ectly to the recorder.
Photohead output is let dir-
The sequence camera photographs the blast directly
for use in correlation of previous data.
Distance was approximately 92
miles,
COPIED/DC °
LANL RGM
5
- 39 eat
uU