9 , 4 GREEx10 Project 6.5 - Analysis of Electromsgnetic Pulse Produced by Huclesr Explosion - C. J. Ong SRIEGTIVE The objective of Project 6.5 18 to obtain waveforus of the electromagnetic radiation for all the detonations during Operation REDWING, This data is to be used in connection vith a oontinuing study relating the waveform parameters to the height and yield of the detonation. AESTRRETATION Two identical stations are used to record dats, one at Enivetok and one at Kvajalein, The instrupentation consists of a vide-bend receiver with seperate outputs connected to each of the three oscilloscopes. Mounted on each cecilloseope is e Polareid Land Camere for recording the transient display. The wide-band receiver consists of one crimery and four seconiary cathode follower amplifiers. An antenna, frecuency insensitive in the rance of interest is fed directly into the primsry cathode follower, The primary cathode follower is then connected to four individual cathode followers by a S-cha evexial cable. Only three secondary cathode followers are utilised, the fourth serving as a spare. The musber one and two cathode followers feed oscilloscopes with sveer epeeds of approximately 30 microseconds per centimeter and 10 aicroseconda/ centimeter respectively, The mmber threo cathode follover is connected to the third cecillescope through a 2 microsecond delay line. The third oeeilicecope has a mveep speed of 1.0 microseconda/centineter. All cecilloseopes were triggered simaltaneously by the DC trigger device BEST AVAILABLE COPY corm?g LAPTLE