Letter | Published:

Diffraction of Slow Positive Ions

Nature volume 140, page 463 (11 September 1937) | Download Citation



AN experimental method has been developed which permits photographic recording of the scattering of slow positive ions through angles of a fraction of a degree. This is accomplished by using a very fine, electrostatically focused incident beam and accelerating the ions, after the scattering, to a velocity high enough to affect a photographic plate. The high-voltage electrostatic lens used to give the acceleration also produces an angular magnification of the scattered rays.

Access optionsAccess options

Rent or Buy article

Get time limited or full article access on ReadCube.


All prices are NET prices.


  1. 1.

    Proc. Roy. Soc., A, 142, 142 (1933).

  2. 2.

    and , Phil. Mag., 12, 554 (1931).

  3. 3.

    Phys. Z., 35, 625 (1934).

  4. 4.

    , “Molekülspektren, 1”, Tabellen.

Download references

Author information


  1. Laboratory of Physical Chemistry, Cambridge.

    • A. G. EMSLIE


  1. Search for A. G. EMSLIE in:

About this article

Publication history





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.