Upper limits on neutron and γ-ray emission from cold fusion

@article{Gai1989UpperLO,
  title={Upper limits on neutron and $\gamma$-ray emission from cold fusion},
  author={M Gai and Steven Louis Rugari and R. H. France and B. J. Lund and Z. Zhao and Alison J. Davenport and Hugh Solomon Isaacs and Kelvin G. Lynn},
  journal={Nature},
  year={1989},
  volume={340},
  pages={29-34}
}
Neutron and γ-ray emission from a variety of electrochemical cells (running continuously for up to two weeks) have been measured using a sensitive detection system with a very low background. Titanium alloy powder deuterided at room temperature and high pressure was also used for comparison. No statistically significant deviation from the background was observed in either γ-ray or neutron detectors. The estimated neutron flux in this experiment is at least a factor of 50 times smaller than that… 
Application of a Ge Detector to Search for Fast Neutrons from DD Fusion in Deuterized Pd
A low-background high-resolution Ge detector surrounded by neutron scatterers was applied to investigate fast neutrons from the electrochemically loaded Pd-D system. The neutron flux was obtained by
Neutron and gamma-ray emission from palladium deuteride under supercritical conditions
This paper reports on palladium which is exposed to pressurized deuterium gas at 60 atm and 198 K and the temperature is cycled up to 593 K, beyond the critical point for palladium deuteride. Two
Concerning the detection of neutrons and γ-rays from cells containing palladium cathodes polarized in heavy water
SummaryIt is shown that neutrons generated in «cold fusion» cells can be detected following thermalization by means of high-resolution spectroscopy of the γ-rays generated by the (n, γ) reaction in
Measurements of neutron emission induced by muons stopped in metal deuteride targets
An 80-MeV/c negative muon beam from the Alternating Gradient Synchrotron at Brookhaven National Laboratory was used to investigate the stopping of muons inside Pd, Ti, and Y targets saturated with
Upper bounds on 'cold fusion' in electrolytic cells
Experiments using three different calorimeter designs and high-efficiency neutron and γ -ray detection on a wide range of materials fail to sustain the recent claims of cold fusion made by
Search for Neutrons as Evidence of Cold Fusion
In this paper investigations performed at the University of Palermo in an attempt to reproduce the cold fusion experiment are reported. The search was devoted to detecting neutron emission from
Search for Time-Correlated Fast Neutrons from DD Fusion at Room Temperature
A time-correlated spectrum of fast neutrons from the electrochemically loaded Pd-D system was measured by a low-background high-resolution Ge detector surrounded by neutron scatterers. Time
A sensitive multi-detector neutron counter used to monitor 'cold fusion' experiments in an underground laboratory; negative results and positive artifacts
A description is given of the neutron counter system used in a search for neutrons at high-sensitivity, the negative results obtained, and the identification of some potentially misleading artifacts
Negative Results and Positive Artifacts Observed in a Comprehensive Search for Neutrons from “Cold Fusion” Using a Multidetector System Located Underground
AbstractA search for neutrons from deuterium “cold fusion” systems (both electrochemical and high-pressure gas cells) was conducted in an underground laboratory using three highly sensitive neutron
...
...

References

SHOWING 1-10 OF 14 REFERENCES
COSMIC-RAY NEUTRON ENERGY SPECTRUM
The cosmic-ray neutron energy spectrum in the equilibrium region of the atmosphere was measured with several different calibrated detectors from thermal energies to about 1 Bev at 44 deg north
Calculated fusion rates in isotopic hydrogen molecules
COLD fusion occurs when two nuclei with very small relative energy tunnel through their mutual Coulomb barrier to initiate a nuclear reaction. The phenomenon is well studied in muon-catalysed
Observation of cold nuclear fusion in condensed matter
When a current is passed through palladium or titanium electrodes immersed in an electrolyte of deuterated water and various metal salts, a small but significant flux of neutrons is detected. Fusion
...
...