from Robin’s email of May 23,2014: 16:58:19 -0700
The problem with "normal" nuclear radiation is that it is very short >wavelength - which is not seen in LENR experiments. Working backwards from a >spectrum which could have escaped detection, we can hypothesize that there >needs to be an emitter geometry which is large enough to emit EUV or x-rays >and at the same time, to delay actual fusion until enough energy has been >dumped. That requirement eliminates any normal nucleus. > >This gets into antenna theory. How can a femtometer particle emit >ultraviolet? Typically it cannot as the geometry is way too >disproportionate. You might as well ask how can an Angstrom sized atom emit light with a wavelength thousands of times larger than itself? I think Bill has already covered this pretty extensively in the past. My understanding of this problem is that it's the frequency which is important, not the wavelength. (Though I'm guessing that the size mismatch may influence the power level of the emitter, and thus the time between emission of photons. Perhaps one of our resident EE's can set me straight?) Regards, Robin……. These were the comments I had in mind in Robin’s noting a concern about size being and indicator of wave length of emissions. My own thoughts focused on the nuclear dipole and quadrapole absorption and emission frequencies and magnetic moment absorption and emission of radiation associated with MRI devices involving nuclear magnetic resonances. However, the MRI absorption and emission of energy may not be called EM radiation the way you are using the term. Nevertheless MRI does entail nuclear emission of low energy quanta IMHO Bob Sent from Windows Mail From: Jones Beene Sent: Sunday, June 1, 2014 9:46 AM To: vortex-l@eskimo.com From: Bob Cook As robin points out the size of the wave length of the EM radiation does not depend upon the size of the emitting entity. Hi Bob, Did Robin say that? – if so, his point comes under the category of opinion AFAIK - since the emission of EM radiation always depends to an extent on the geometry of the emitter. The semantic problem is in defining “geometry” in a relative sense. The nucleus in motion can emit longer wavelength than gamma, but only so long as the motion is resonant, as in Larmor precession, for instance. The halo nucleus would fit somewhere in between. Can you cite instances or evidence in physics of a stationary nucleus emitting EM radiation which is long wavelength – say random RF or light emission which is not related to precession? If the size of the emitting entity did not matter, we should see visible light, UV and even RF coming from nuclei in almost any random frequency - as opposed to coming from excited electrons – or in the case of NMR (or Mossbauer) from the Larmor frequency, which is based on nuclear precession in a magnetic field, which is a resonant motional wavelength - thousands of longer than the size of the nucleus. In fact, my belief (pending a citation from you or Robin to contradict it) - is that this blanket statement above about lack of a geometrical parameter is completely incorrect - and in fact no nucleus can emit longer wavelength EM radiation than either its dimensions permit, or its resonant path in space permits (precession or equivalent motion). This emission would be due partly to geometry and partly due to excess internal energy which is released in quanta and not randomly. There was a controversy that arose about 15 years ago where UV and optical radiation was said (incorrectly) to derive directly from low energy transitions in radioactive nuclei. Of course, the problem is that it is difficult for experts to determine where the radiation comes from unless you have bare nuclei in a vacuum. Spontaneous ultraviolet luminescence from U and Th was reported by Irwin in 1997, Richardson in 1998 and Shaw in 1999– but in the end, all of these reports were debunked, since the ultraviolet emission could be attributed to nitrogen in the air surrounding the sample, or to mundane sources like k-shell emission lines which had previously been undocumented. http://web.ornl.gov/~webworks/cpr/pres/109281_.pdf Of course, inner shell electrons can emit UV but not nuclei, AFAIK - unless the nucleus is locked into a larger orbital periodic motion of its own. In fact, the UV quanta from electrons can be proportionate to the orbital period (geometry) as Mills suggest by the Rydberg energy quanta. Mossbauer radiation is another example and it is entirely denominated by geometry (in forcing magnetic precession). The shortest emission wavelength (lowest quanta of energy) which I have seen from a relatively cold nucleus (non kinetic radiation) corresponds to mass energy around 6 keV. If there is anything shorter in the literature, it would be helpful to cite it – as this has plenty of relevance to understanding LENR. Jones
