New Source of Positive Electrons


OBSERVATIONS made with a weak radium source placed inside the Wilson chamber in a magnetic field showed that, in addition to the particles of the natural spectrum, a very considerable number of positive electrons are also emitted.

Access optionsAccess options

Rent or Buy article

Get time limited or full article access on ReadCube.


All prices are NET prices.


  1. 1

    C. D. Ellis, Proc. Roy. Soc., A, 143, 350; 1934.

  2. 2

    L. Nedelsky and J. R. Oppenheimer, Phys. Rev., 44, 948; 1933.

  3. 3

    M. Lecoin, C.R., 197, 405; 1933.

  4. 4

    I. Curie and F. Joliot, C.R., 198, 254; 1934.

Download references

Author information

Rights and permissions

Reprints and Permissions

About this article

Further reading


By submitting a comment you agree to abide by our Terms and Community Guidelines. If you find something abusive or that does not comply with our terms or guidelines please flag it as inappropriate.