Return to LENR-CANR Experiments page

ELECTROLYSIS OF D2O WITH TITANIUM CATHODES: ENHANCEMENT OF EXCESS HEAT AND FURTHER EVIDENCE OF POSSIBLE TRANSMUTATION

J. Warner and J. Dash, Low Energy Nuclear Laboratory, Portland State University, and Stephen Frantz, Reed College Reactor, Portland Oregon, USA

Perimeter to Area Ratio, Why perform this study?

It was observed that the excess power output does not increase as the size of the cathode was increased (from ~23 mm2 to ~400 mm2).

Smaller cathodes have larger perimeter / area ratios (~ 0.43 mm-1) than the larger cathodes (~ 0.27 mm-1).

Smaller cathodes yield an average excess power output of 232 +/- 20 mW (113% of power input) and has reached as high as 125% of the power input.

We therefore investigated the relationship between the perimeter / area ratio of the cathode and excess heat output over a series of 28 SEC experiments. 

Cathodes Without Slits

Neutron Activation Analysis (NAA) Results

Cathodes With Slits

Data was presented here for 12 of 22 total NAA analysis performed (6 cathodes and 6 electrolytes
are shown).  The results shown above indicate that transmutation products occur in higher atomic
concentrations in excess power producing cells.

An increase in the perimeter / area ratio of the cathode increases both the reproducibility and the magnitude of excess power production in Ti-Pt,  D2O-H2SO4 electrolytic cells.