A method is described for determining a variable gamma‐ray absorption coefficient in a sample from measurements made outside the sample, and the applicability of the method to other radiological problems (e.g., positron scanning) is pointed out. An experimental test of the method is described, and it is concluded that the method works well.

Topics
Gamma rays, Integral calculus, Optical absorption, Leptons
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© 1964 The American Institute of Physics.
1964
The American Institute of Physics
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