High_altitude_EMP.gif
Summary
Description High altitude EMP.gif |
English:
Background information on high altitude EMP from testing is from
http://glasstone.blogspot.com/2006/03/emp-radiation-from-nuclear-space.html
Note that the actual peak EMP at ground zero depends also on the intensity and hence the rise time of the prompt gamma rays, and the natural magnetic field strength at the altitude of interest, so these are just approximate curves. The blue pre-ionisation curve shows how gamma rays from the primary stage of a nuclear weapon can reduce the later stage EMP by partly shorting it out, via pre-ionising the high altitude atmosphere (which allows a conduction current to immediately oppose the EMP Compton current of electrons). The full facts are secret, but these unclassified curves give a good idea of how bomb yield and burst altitude influence the maximum peak EMP on the earth's surface.
|
Date | |
Source | (Image composed of the calculations on pages 33 and 36 of Louis W. Seiler, Jr., "A Calculational Model for High Altitude EMP", AIR FORCE INST. OF TECH., WRIGHT-PATTERSON A.F.B., U.S. Government report number AD-A009208, March 1975, available online at http://stinet.dtic.mil/cgi-bin/GetTRDoc?AD=A009208&Location=U2&doc=GetTRDoc.pd |
Author | User:Photocopier, from government source. |
Licensing
Public domain Public domain false false |
This image or file is a work of a
U.S. Air Force
Airman or employee, taken or made as part of that person's official duties. As a
work
of the
U.S. federal government
, the image or file is in the
public domain
in the United States.
العربية ∙ беларуская (тарашкевіца) ∙ català ∙ čeština ∙ Deutsch ∙ English ∙ español ∙ eesti ∙ فارسی ∙ suomi ∙ français ∙ italiano ∙ 日本語 ∙ 한국어 ∙ македонски ∙ മലയാളം ∙ မြန်မာဘာသာ ∙ norsk bokmål ∙ Plattdüütsch ∙ Nederlands ∙ polski ∙ português ∙ português do Brasil ∙ русский ∙ sicilianu ∙ slovenčina ∙ slovenščina ∙ српски / srpski ∙ svenska ∙ Türkçe ∙ українська ∙ Tiếng Việt ∙ 中文(简体) ∙ 中文(繁體) ∙ +/− |