A safe, cheap and reproducible LENR experiment - much more people can try themselves.

Majorana, nuclear transmutations have been the focus of Japenese scientists for many many years, rather than excess heat.

The idea of having an absolutely repeatable testbed also appealed to me and I poked around for likely experiments.

What I decided would be workable was carbon arc experiments, either underwater or in air that have been confirmed repeatedly to yield new elements. Some of these experiments go back a long way (before cold fusion or LENR were defined terms).

Here is only one link:
http://amasci.com/freenrg/carbiron.html

Mary, it was a 0,2 weight% Ash sample that may have had100% 62Ni. Surely it was very likely not representative of total Ash.

If the ash sample is not representative, then neither should the fuel sample be considered representative. Even if it does look like it is "supposed to".

Quote from Majorana

Change in isotopic composition compared to natural composition <=> nuclear reactions.

One experiment I've thought of from time to time would be to have an airtight, evacuated ampule with a high-purity tungsten filament. The experiment is to discharge a large capacitor through the filament so that it vaporizes, and then to carry out a spectral analysis on any residual gas within the ampule. The discharge would be high current and low voltage, so that no ions are accelerated to plasma fusion energies. If the analysis reliably indicates that there are gaseous elements that are unlikely to be impurities in tungsten or to have leaked into the ampule, this would be a good an indication of something strange happening. A spectral analysis would be carried out beforehand as a baseline.

This experiment is different from burning out a lightbulb in the following ways:

• A huge current is used
• The filament is vaporized in the discharge rather than simply broken
• A spectral analysis is carried out before and after
• The tungsten filament is high-purity

Btw, this is similar to the experiment of Paneth and Peters in the 1920s, in which they thought they saw helium and then later retracted. My questions are: does helium regularly show up in significant quantities? Do gases like xenon, argon, chlorine or nitrogen show up? Seems like an inexpensive, easy experiment to do.

It is seldom that I quote Axil. however, he is insistent that the sintered Ni ash proves the Ni was heated to 1400C+.

If this is true it is proof positive that the provided ash sample was substituted - for example by substituting the reactor itself - because during the Lugano testing the reactor surface never got higher than 780C and while a temperature gradient of a few hundred degrees surface to core is possible the gradient 600+C is way too big to be possible.

Mind you - I'm not sure I believe Axil...

In addition to the large change in the relative abundance of 62Ni, there was a big shift in the 7Li/6Li ratio. The 62Ni detail can potentially be explained by unrepresentative sampling of the fuel and ash, in which a particle of enriched nickel that was present from the beginning was observed in the ash but missed in the fuel. In the case of lithium, in the fuel the ratio of 7Li/6Li was 94.1/5.9 and in the ash the ratio was 42.5/57.5 (Appendix 4). This change is also something that would be interesting to understand. Since the lithium was likely to have melted under the temperatures of the experiment, a different explanation might be needed.

Perhaps the change in lithium happened through some kind of separation; if so, I'd be interested in seeing a demonstration of such an effect, which could be commercially useful.

The line spectra in Appendix 3 to the Lugano report also suggest a number of other isotope changes, although since in most cases the element has only a single stable isotope, it is impossible to rule out an unrepresentative sampling between fuel and ash.