Document Details


Title:
OPERATION HARDTACK - PROJECT 6.4, WAVE FORM OF ELECTROMAGNETIC PULSE FROM NUCLEAR DETONATIONS (DELETED)
Author(s):
LAVICKA, F [UNITED STATES ARMY - DEPARTMENT OF]; LANG, G [UNITED STATES ARMY - DEPARTMENT OF]
Subject Terms:
SHOCK WAVES; HARDTACK I OPERATION; GEOPHYSICAL SURVEYS; MEASURING METHODS; MEASURING INSTRUMENTS
Document Location:
Location - NNSA/NSO Nuclear Testing Archive Address - P.O. Box 98521 City - Las Vegas State - NV Zip - 89193-8521 Phone - (702)794-5106 Fax - (702)862-4240 Email - CIC@NV.DOE.GOV
Document Type:
REPORT
Publication Date:
1960 Sep 15
Declassification Status:
Sanitized
Document Pages:
0029
Accession Number:
NV0051001
Document Number(s):
WT1638EX
Originating Research Org.:
UNITED STATES ARMY - DEPARTMENT OF
OpenNet Entry Date:
1994 Aug 26
Description/Abstract:
THE OBJECTIVE WAS TO OBTAIN AND ANALYZE THE WAVE FORM OF THE ELECTROMA GNETIC (EM) PULSE RESULTING FROM NUCLEAR DETONATIONS, ESPECIALLY THE H IGH-ALTITUDE SHOTS. THE MEASUREMENTS WERE A CONTINUATION OF THOSE MADE DURING OPERATION PLUMBBOB, ALTHOUGH IMPROVEMENTS IN EQUIPMENT WERE IN CORPORATED WHEREVER POSSIBLE. THE INCREASED CATALOGING OF EM-PULSE WAV E-FORM DATA IS EXPECTED TO BE VERY USEFUL IN THE FIELD OF NUCLEAR SURV EILLANCE. BECAUSE OF RELOCATION OF THE SHOTS, WAVE FORMS WERE NOT OBTA INED FOR THE VERY-HIGH-ALTITUDE SHOTS, TEAK AND ORANGE. DURING SHOTS Y UCCA, CACTUS, FIR, BUTTERNUT, KOA, HOLLY, AND NUTMEG, THE PULSE WAS ME ASURED OVER THE FREQUENCY RANGE FROM 0 TO 10 MEGA C . TWO SITES WERE U SED: KUSALE, WHOSE RANGES FROM BIKINI AND ENIWETOK ARE 460 AND 420 STA TUE MILES, RESPECTIVELY; AND WOTHO, WHOSE RANGES FROM THE SAME LOCATIO NS ARE 100 AND 240 STATUE MILES, RESPECTIVELY. SIGNALS WERE PICKED UP BY SHORT PROBE-TYPE ANTENNAS, AND FED VIA CATHODE FOLLOWERS AND DELAY LINES TO HIGH-FREQUENCY OSCILLOSCOPES. PHOTOGRAPHS OF THE TRACES WERE TAKEN AT THREE SWEEP SETTINGS: 0.2, 2, AND 10 MICRO SEC/CM. THE SHOT CHARACTERISTICS WERE COMPARED TO THE ACTUAL EM-PULSE WAVE-FORM PARAMET ERS. THESE COMPARISONS SHOWED THAT, FOR SURFACE SHOTS, THE YIELD, RANG E, AND PRESENCE OF A SECOND STAGE CAN BE ESTIMATED FROM WAVE-FORM PARA METERS. EM-PULSE DATA OBTAINED BY THIS PROJECT IS IN GOOD AGREEMENT WI TH THAT OBTAINED DURING OPERATION REDWING, PROJECT 6.5.


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