Nuclear electromagnetic pulse simulation by point-source injection techniques for shielded and unshielded penetrations. Technical report

Technical Report · Mon Dec 01 04:00:00 EST 1975

OSTI ID:7347111

Gray, R F

Nuclear electromagnetic pulse simulation by point source injection techniques was investigated for shielded and unshielded system penetrations. Circuit theory is applied to the unshielded case and a generalized injection system is suggested. To determine the relationship between point source current injection on the external shield of a cable and its response to free-field EMP excitation, general transmission line solutions were obtained in the frequency domain for each case. A numerical transform was used to obtain time domain waveforms of the external and internal currents. Both solutions were verified with experimental data collected on a braided shield coaxial cable that exhibited both types of reactive coupling (inductive and capacitive) through its shield. Shielding effectiveness transfer functions were experimentally obtained with a coaxial cable driver to determine the shield parameters.

• Research Organization: Harry Diamond Labs., Washington, D.C. (USA)
• OSTI ID: 7347111
• Report Number(s): AD-A-024803; HDL-TR-1737
• Country of Publication: United States
• Language: English

Related Subjects

45 MILITARY TECHNOLOGY, WEAPONRY, AND NATIONAL DEFENSE
450200* -- Military Technology
Weaponry
& National Defense-- Nuclear Explosions & Explosives
CABLES
CONDUCTOR DEVICES
ELECTRIC CABLES
ELECTRICAL EQUIPMENT
ELECTROMAGNETIC PULSES
ELECTROMAGNETIC RADIATION
EQUIPMENT
EXPLOSIONS
FUNCTIONS
MATHEMATICAL MODELS
NUCLEAR EXPLOSIONS
POINT SOURCES
PULSES
RADIATION SOURCES
RADIATIONS
SHIELDING
SIMULATION
TRANSFER FUNCTIONS
WAVE PROPAGATION