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Defense Intelligence Reference Document Pulsed High-Power Microwave Source Technology

Defense Intelligence Agency · 37 pages · text from the file's own layer

This Defense Intelligence Reference Document from the Defense Intelligence Agency, dated 28 January 2010, surveys pulsed high-power microwave (HPM) source technology. It was produced under the Advanced Aerospace Weapon System Applications (AAWSA) program. It covers insulation, cathode materials, high-voltage switching, pulse generators, microwave sources such as magnetrons, gyrotrons and the Phoenix and Jolt sources, and antennas. The document concludes that progress depends on advances in cathodes, switching and insulation. It says compact ultrawideband antennas will remain difficult to build.

  • p. 5 …Relative Spark Breakdown Strength of Gases ........................................... 5 Table 3. Cathode Study Findings .......................................................................... 11 V UNCLASSIFIED/;CEiOAt…
  • p. 11 …separate coil could be incorporated into the spark plug cap at each cylinder. Technologies have been…
  • p. 13 …Relative Spark Breakdown Strength of Gases Gas N2 Air NH3 CO2 H,S 02 Cl2 H2…
  • p. 21 …There are two contributions to the inductive rise time, with Le being the spark channel inductance…
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Contents
Summary ................................................................................................................vi
Critical Technologies .............................................................................................. 1
Insulation .......................................................................................................... 1
Uniform Homogeneous ....................................................................................... 2
Solid ................................................................................................................... 2
Plastics ........................................................................................................... 2
Epoxies .......................................................................................................... 3
Urethanes and Silicones ................................................................................. 4
Liquids ............................................................................................................... 4
Gaseous ............................................................................................................. 4
Laminated .......................................................................................................... 6
Plastic-Paper-Oil ................................................................................................ 6
Plastic-Paper-Epoxy ........................................................................................... 6
Dielectric Tapering ............................................................................................. 7
Cathode Materials .............................................................................................. 7
Velvet ................................................................................................................. 9
Carbon ............................................................................................................... 9
Ceramics .......................................................................................................... 10
Cesium Iodide Coated ...................................................................................... 10
High-Voltage Switching .................................................................................... 11
Gaseous Switching ........................................................................................... 12
High-Speed Liquid Switching ............................................................................ 14
Solid-State Switching ....................................................................................... 14
High-Voltage Pulse Sources ................................................................................. 15
Marx Generators .............................................................................................. 15
Transformer Based Generators ........................................................................ 16
iii
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Report, from the dia collection. The PDF is mirrored here; the original link is under it. 37 pages are in the text index: search them above, or from the library's search.