This evening Dennis Walters gave a talk on the threat of High Altitude Electromagnetic Pulse. For more information, you can visit his reference site at http://danaengineering.org.
Click here to download a pdf of the slides of a similar presentation that he gave earlier this year.
We hope to be able to post this evening’s slides soon.
The threat of a rogue nation or a well-funded and supported terrorist group detonating a small nuclear weapon at a high-altitude would have devastating consequences to the United States. The consequences threaten to cause the loss of millions of civilians who rely on the infrastructure to live in urban areas. In the aftermath of an attack, electrical and electronic component failures would potentially be wide-spread and long lasting. The initial response to this type of event is time critical to maintain civil order and begin the process of recovery.
PROTECT YOUR FAMILY, BUSINESS, AND COMMUNITY
Until local emergency plans are put into place and/or our infrastructure is hardened against these threats, the public remains unprotected and unprepared to deal with an existential threat that, at this time, has an unacceptably high probability of occurrence. The existing infrastructure allows us to live in densely populated areas that will not be able to meet minimum survival needs (Food, water and septic, medical). Experts estimate that up to 90% of the population in America would die if the electrical grid was out of service for a year. With adequate preparation, you can improve the survival of your family, business, and community by reducing the risk of a breakdown of social order. The first step at home is to assess your ability to adequately provide food and water for your family if there is extended power outage. The first step in your business and community is to identify and assess mission critical equipment that are needed to assure continuity of operations after an EMP attack.
And here is a link to a blog post with instructions on how to make simple faraday cages at home from foil and metal containers. In that post it says to use heavy duty aluminum foil. Mr. Walters said that in his testing regular aluminum foil actually made a better RF seal around items, but heavy duty foil can be used if you need more abrasion resistance. The blog post also does not mention using metal foil tape to seal your seams.