For an EM field to propagate, the electric and magnetic fields must be coupled. Once you stop the electric field, the magnetic field will also be stopped. At low enough frequencies, the penetration depth of the field will allow some EM field to escape, attenuated by the propagation through the metal.
Even if SiC was used for the tubes, it would block most RF as SiC ceramic is a conductor, but a poor one. SiC is an expensive ceramic to make in the size of the hotCat and if Rossi were using this, it would probably price his hotCat out of the market for home devices. I don't believe he is using SiC in his hotCat - I believe the reactor core is stainless steel (as the Penon report describes) welded closed at the ends of the coaxial tubes. That doesn't mean he hasn't experimented with SiC. SiC is very hard to machine and it would be challenging and expensive to produce a coaxial reactor vessel (as shown in the Penon report) and seal its ends. Bob Higgins On Thu, Oct 2, 2014 at 8:05 PM, Axil Axil <janap...@gmail.com> wrote: > NMR is caused by the vibration of the non-zero spin vector of a nucleus. > This vibrating nuclear spin produces a vibrating magnetic field. > > The point of a Faraday cage is that it's made of a conductor, which > responds to electric fields. Both a strong magnetostatic (DC) and Ac fields > are different, and will barely be affected by the Faraday cage. (The cage > may have some magnetic properties, but that's not what makes it a Faraday > cage, and it's unlikely to have a significant impact on magnetic fields.) > > On Thu, Oct 2, 2014 at 8:29 PM, Bob Higgins <rj.bob.higg...@gmail.com> > wrote: > >> I have posted the cross-section of the hotCat as I have surmised it to be >> constructed. The active medium is entirely in a hermetically sealed >> stainless coaxial tube arrangement. The reactor vessel itself IS the >> Faraday cage. It is not a part of the test, it is a part of the hotCat. >> >> Bob Higgins >> >> On Thu, Oct 2, 2014 at 6:21 PM, Axil Axil <janap...@gmail.com> wrote: >> >>> How do you know that a faraday cage is part of the test? >>> >>> On Thu, Oct 2, 2014 at 5:25 PM, Bob Higgins <rj.bob.higg...@gmail.com> >>> wrote: >>> >>>> The 3.6 keV x-ray photons are easily detected with an x-ray >>>> spectrometer such as the Amptek X-123SDD at >>>> http://www.amptek.com/products/x-123sdd-complete-x-ray-spectrometer-with-silicon-drift-detector-sdd/ >>>> . See their chart at this URL for the different window options that will >>>> easily allow detection down to 1 keV: >>>> http://www.amptek.com/products/c-series-low-energy-x-ray-windows/ . I >>>> am hoping to get one of these some day. >>>> >>>> The bigger issue is that not much will make it out of the hotCat even >>>> if that is the primary channel for conveying the heat. >>>> >>>> In the case of RF, I would expect almost none to escape the hotCat >>>> because the reaction is in a Faraday cage. The RF that could penetrate >>>> would have to be below 1 kHz. >>>> >>>> >
