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| Nature 170, 201 - 202 (02 August 1952); doi:10.1038/170201a0 |
|
Microradiography with Alpha-Rays
GUNNAR ANIANSSON & NAFTALI STEIGER
Division of Physical Chemistry, Royal Institute of Technology, Stockholm 70. Feb. 13.
ALPHA-PARTICLES are very strongly absorbed even by thin layers of materials. Their path through matter is almost exactly a straight line, and their effect on a photographic emulsion is very strong. These properties seem to be well suited for micro-radiographic mass determinations. Since such methods promise to be of value in several research fields, such as biology, medicine, mineralogy and metallurgy, experiments have been undertaken to determine the potentialities and optimal conditions for alpha-microradiography. The main advantage of using alpha-particles as compared with soft X-rays1 would be the much simpler apparatus needed and the relative independence of the absorption on the composition of the object.
© 1952 Nature Publishing Group
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