Historical research guide · 0735 · 2012

Low Energy Nuclear Reactions: Exciting New Science and Potential Clean Energy

David J. Nagel · Kamron C. Fazel

In one minute

David Nagel and Kamron Fazel wrote this for a fusion-technology audience, and the framing is deliberate: the field once called cold fusion is now called low energy nuclear reactions, because the reactions seen in loaded metals are not obviously the fusion of two nuclei in free flight and the old name promised something the data did not have to deliver. Their argument is a comparison a fusion engineer cannot ignore. Twenty years of LENR experiments include instances where the energy coming out exceeded the energy going in by more than a factor of ten — the same gain the international tokamak programme is spending a decade and many billions to reach. Nagel and Fazel summarise the core evidence from the older line of work, in which deuterium is driven electrochemically into palladium, and then turn to the newer one: engineered devices that load ordinary hydrogen onto, and perhaps into, nickel, for which gains above one hundred had been reported in the two years before they wrote.

Connection

Chapter 12 is the lattice route to fusion, and this is the paper that puts the field’s numbers next to the tokamak’s on the same axis — gain, in a journal read by the people building tokamaks. It is also a marker for the site’s evidence ladder: what is summarised from decades of calorimetry, and what is still carried on the word ’reportedly’.

From the source

Low energy nuclear reactions is the name now given to what was initially, and poorly, called cold fusion. The renaming is substantive: it drops a mechanism the experiments had not established and keeps only what they measure — nuclear-scale energy released in a metal lattice at ordinary temperatures.Title; abstract, sentence 1
More than twenty years of scientific research on LENR have produced some instances of energy gains exceeding ten — the same value as the goal of the International Thermonuclear Experimental Reactor, which that programme expects to reach in about a decade.Abstract, sentence 2
The paper summarises the key experimental data from the older and best-documented protocol: electrochemical loading of deuterons into palladium, the Fleischmann and Pons line of work, where excess heat is measured calorimetrically against the electrical input.Abstract, sentence 3
In the two years before publication, engineered LENR systems were reported with energy gains exceeding one hundred, using gas loading of protons onto — and perhaps into — nickel rather than deuterons into palladium. The authors report this as a claim made in the field, and the word they choose is ’reportedly’.Abstract, final sentence
What to watch, and what would settle it: an independently instrumented nickel-hydrogen device run long enough for the integrated heat to exceed any chemical energy stored in the charge, with flow calorimetry and an input measurement the reviewers control. That is the measurement that would move the gain-above-one-hundred class of result from ’reportedly’ into the same column as the palladium-deuterium calorimetry.Abstract, final sentence, read against the paper’s own framing in its title

The way in

https://doi.org/10.13182/fst12-a13464

Historical source-access record. This guide links to the original; it does not reproduce the paper text.

SOURCE NOT REACHED IN FULL. Published as Fusion Science and Technology, volume 61, issue 1T, pages 463 to 468, January 2012 — a proceedings issue of the journal — under the American Nuclear Society journal licence, which is not a Creative Commons licence, so no text of the paper is reproduced here. The publisher page at Taylor and Francis refused automated requests on 2026-09-08, and neither OpenAlex, Unpaywall, Semantic Scholar nor Crossref holds an open copy or the abstract text; Crossref returns an empty abstract field. The LENR-CANR library was checked directly by listing its complete document directory on 2026-09-08: it holds eighteen papers by David J. Nagel, but not this one, and no file under Fazel. So the summary and the claims here are written from the authors’ own published abstract as carried on the publisher’s record and read through a search index, and from the bibliographic record; the locators point to the abstract and title rather than to numbered sections, and the paper’s tables and figures were not read. David J. Nagel writes from The George Washington University in Washington, D.C.; Kamron C. Fazel was then at Pennsylvania State University.

How to cite it

David J. Nagel, Kamron C. Fazel (2012) Low Energy Nuclear Reactions: Exciting New Science and Potential Clean Energy doi:10.13182/fst12-a13464

Where it sits in the curriculum

Lattice confinement fusion