Project 6.5 ~ Analysis of Electromagnetic Pulse Produced by Nuclear
Explosion = C. Je Ong
Ob jective
The objective of Project 6.5 is to obtain waveforms of the electro=
magnetic 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 and yield of the detonation.
Instrumentation
Two identical stations are used to record data, one at Eniwetok
and one at Kwajalein,
The instrumentation consists of a wide-band receiver with separate
outputs connected to each of the three oscilloscopes,
Mounted on each
oscilloscope is a Polaroid Land Camera for recording the transient dise
play.
The wide~band receiver consists of one primary and four secondary
cathode follower amplifiers,
An antenna, frequency insensitive in the
range of interest is fed directly into the primary cathode follower,
The primary cathode follower is then connected to four individual cathode
followers by a 50-ohm coaxial cable.
Only three secondary cathode foll-
owers are utilized, the fourth serving as a spare,
The mumber one and two cathode followers feed oscilloscopes with
sweep speeds of approximately 30 micro—seconds per centimeter and 10
microseconds/centimeter respectively.
The number three cathode follower
is connected to the third oscilloscope through a 2 micro-second delay
line.
The third oscilloscope has a sweep speed of 1.0 micro-seconds/cen=
timeter,
5
4
cats BO
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Pro,
All oscilloscopes were triggered simultaneously by the DC