Aston's first mass spectrograph, c. 1919.

Made:
1918-1925 in Cambridge
designer:
Francis William Aston

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Buy this image as a print 

License this image for commercial use at Science and Society Picture Library

Creative Commons LicenseThis image is released under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 Licence

Buy this image as a print 

License this image for commercial use at Science and Society Picture Library

Creative Commons LicenseThis image is released under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 Licence

Buy this image as a print 

License this image for commercial use at Science and Society Picture Library

Creative Commons LicenseThis image is released under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 Licence

Buy this image as a print 

License this image for commercial use at Science and Society Picture Library

Glass discharge tube for original mass spectrograph by F. W. Aston. Three quarter view. White background
Science Museum Group Collection
© The Board of Trustees of the Science Museum

Glass discharge tube for original mass spectrograph by F. W. Aston. Three quarter view. White background
Science Museum Group Collection
© The Board of Trustees of the Science Museum

Professor FW Aston's original Aston Mass-Spectrograph complete with magnet. The first mass spectograph was designed by
Science Museum Group Collection
© The Board of Trustees of the Science Museum, London

Professor FW Aston's original Aston Mass-Spectrograph complete with magnet. The first mass spectograph was designed by
Science Museum Group Collection
© The Board of Trustees of the Science Museum, London

Professor FW Aston's original Aston Mass-Spectrograph complete with magnet. The first mass spectograph was designed by
Science Museum Group Collection
© The Board of Trustees of the Science Museum, London

Prof. F.W. Aston's original Aston Mass-Spectrograph complete with magnet

The first mass spectograph was designed by Cambridge scientist F W Aston (1877-1945). It could separate isotopes, which are chemically identical atoms with different masses. The spectograph's globe contained a compound of the material to be tested and an electric current then knocked electrons from the material's atoms. Aston worked with J J Thomson (1856-1940) to show that over 50 elements were made up of atoms of different atomic masses but the same atomic numbers.

Details

Category:
Nuclear Physics
Object Number:
1927-1085
Materials:
magnet: copper wire and iron, table: wood, tube: glass
Measurements:
overall (including display table): 1330 x 1380 x 810 mm
type:
mass spectrograph
taxonomy:
  • furnishing and equipment
  • measuring device - instrument
  • mass spectroscope
credit:
Prof. F.W. Aston
status:
Permanent collection

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