Experimental Modern and Quantum Physics for Do-It-Yourself Science Enthusiasts 

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Home Book Chapters Chapter 3 - Atoms and Radioactvity d.i.y. Alpha-Particle Rutherford Scattering Experiment – Supplementary Pictures
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d.i.y. Alpha-Particle Rutherford Scattering Experiment – Supplementary Pictures

diy Alpha-particle Rutherford scattering device by David and Shanni Prutchi www.diyPhysics.com

The book’s Figures 70 and 71 show our d.i.y. version of a popular apparatus to measure alpha particle scattering.  The figure above shows additional views to help you build your own.  The apparatus allows you to demonstrate alpha particle scattering discovered by Ernest Rutherford in 1908.  Fundamental to the discovery of the atom’s structure, the experiment demonstrates that the charge of the atomic nucleus is concentrated at the center of the atom.

Rutherford scattering apparatus by The Science Source as described in www.diyPhysics.com

Image Credit: The Science Source

A commercial version of the apparatus is sold by The Science Source.  This commercial version was designed by Professor C.W. Leming and D.H. Garrison at Henderson State University.

Specifications:

  • Source:  Po-210, half-life 138 days
  • Beam Angle: 2.5°
  • Deflecting Angle: ±20° symmetrically around the axis
  • Detector:  α particle-sensitive film, 8.6 cm/ diameter circle

diy Alpha-particle Rutherford scattering device by David and Shanni Prutchi www.diyPhysics.com

In the book’s Figure 73 we show another d.i.y. version of the apparatus, this time using CR-39 plastic chips instead of the more expensive Kodak-Pathe LR115-II alpha-particle sensitive film.  We are posting the pictures above to help you construct your own.

 

Please visit www.diyPhysics.com and www.prutchi.com for other cutting-edge d.i.y. projects, and remember to check out our new d.i.y. Quantum Physics book:

 
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