An Extraordinary LENR Reactor Design

By Steven B. Krivit
November 29, 2025

Japanese scientist Tadahiko Mizuno, 80, has published an extraordinary new low-energy nuclear reaction (LENR) reactor design.

The design is described in his paper, “Analysis of Trigger Input for Nuclear Reactions Using SUS Alloys,” released this week in the European Journal of Applied Physics.

It consists of a cylindrical stainless steel tube, closed at both ends, with only a manifold to allow gases in and out of the chamber. A second embodiment of the design includes a current-collecting electrode.

Ordinary hydrogen gas is pumped into the chamber and kept under pressure as it absorbs into the stainless steel. After absorption, the chamber is evacuated and the manifold is closed. A resistance heater wrapped around the outside of the chamber provides the initiation energy required to start and maintain the reactions.

The paper reports thermal output — excess power — in the hundreds of watts. New Energy Times does not have enough information about the thermal measurements to evaluate the claim. However, if the measurements are valid, and if other researchers can reproduce similar results, this design could spark a major shift in LENR research.

The design requires no electrodes and no complex multilayer nanoscale surface preparation. It is simple, has no moving parts and uses no liquids.

New Energy Times asked Mizuno how he developed the idea. He explained that it evolved naturally from earlier designs and from his 37 years of experience in the LENR field.