ak ad : . « . ‘ gos a(macerace) Project 6.5 — Analysis of Electromagnetic Pulse Produced by Nuclear Beplosion - C, J, Gag SRDECLIYE . The objective of Project 6.5 is to obtain waveforms of the electromagnetic radiation fer all the detonations turing Operation REDWING, This data is to be weed in comnection vith a eontinuing stuty relating the waveforu parameters te the height and yield of the detonatica. TEENA Twe identical stations are usel to recor’ date, one at Enivetok and one at Bajalein. © , The inetrunentation consists of « vide-teat receiver with separate outputs comested te each of the three cpeilloscepes, Mounted en each escilicsceps is a Polareid Land Camera for recording the transient ¢is- play. The wide-band receiver ecasists of one primary ani four secondary eathede follower amplifiers. An extenm, freqesncy insensitive ia the range of interest is fed directly inte the primary eathode follower, The primary cathode follower is then connected to four intividesl ea thede followers ty a SO=ohm coaxial eable. Only three secondary ea- thede followers are utilised, the fourth serving a9 & spare. The mmber one and tvo cathode fellovere feed oseilicesopes vith oveep speeds of approximately 30 microseconds per centimeter ani 10 microseconis/centineter reapectively, The susber three cathode follever is commected to the third oscilloscopes through « 2 microsecond delay line, The third oscilloscope has a sveep speed of 1.0 nicresscenta/ Gentineter. All cecilloscepes were triggered sigmitaneously ly the BEST AVAILABLE COPY coe « 7