Molecular Beams with Energies above One Electron Volt

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Science  24 Feb 1967:
Vol. 155, Issue 3765, pp. 997-999
DOI: 10.1126/science.155.3765.997


By using as sources supersonic jets of hydrogen or helium containing small concentrations of heavier molecules we have been able to obtain molecular beams with kinetic energies of the heavy molecules well into the range above I electron volt. A variety of molecules have been successfully accelerated. Intensities of 1016 to 1017 heavy molecules per steradian-second have been achieved at these high energies.