Abstract
A comparison was made between the ranges of artificially accelerated protons in Aluminium and in Ilford G5 photographic emulsion. The ranges in emulsion were obtained by direct measurements along the particle tracks, and those in Aluminium by an attenuation method. The ranges of protons of three different energies were 19.31, 13.23 and 7.82 g/cm2 in Aluminium, and 22.85, 15.58 and 9.50 g/cm2 in emulsion of density 3.791 g/cm3 conditioned to 58% relative humidity. The corresponding energies were 146.5 MeV, 117.9 MeV and 87.4 MeV. Assuming the range-energy relation for protons to be at present better determined for Aluminium than for photographic emulsion, this experiment provides new information concerning the relation between particle range and energy in nuclear emulsion.
Published Version
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