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Projest 6.5
ov ~ Analysis of Electromagnetic Pulse Produced by Nuclear
Explosions - Charles J. Ong
OBIFCTIVE
The objective of Project 6.5 is to obtain waveforms of the electromagnetic radiation for all the detonations during Operation REDWING.
This
data is to be used in connection with a continuing study relating the
waveform parameters to the height ani yield of the detonation.
INSTRUMIT ATION
Two identical stations are usei to record data, one at Eniwetok
and one at Kwajalein,
The instrumentation consists of a wide-band receiver with seperate
cucputs connected to each of the three oscilloscopes,
”
Mounted on each
iltoscope is a Polaroid Land Camera for recording the transient display.
The wide-band receiver consists of one primary and four seconiary
eathole folloyor amplifiers,
An antenna, frequency insensitive in the
range of interest is fed directly into the primary cathode follower.
The
primary eathole follower is th-n connected to four inijividual cathode
followers by a 50-ohm coaxial cable.
Only three secondary cathode
followers are utilized, the fourth serving as a spare,
The number one and two cathole followers feed oscilloscopes with
sweep
speeds of approximately 30 microseconds per centimeter andi 10
microseconds/centimeter respectively.
The number three cathode follower
is connected to the third oscilloscope through a 2 microsecond delay line.
The third oscilloscope has a sweep speed of 1.0 microseconds/centimeter.
All oscilloscopes were triggered simultaneously by the DC trigger device
ao
leeated in the primary cathode follower ani connected directly to the
prenl0Oe. ‘
SRNL RC,
-~ 69 -
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