Energy Spectrum of Photoprotons from Al 27

The energy spectrum of photoprotons from Al27, induced by 24-Mev bremsstrahlung, was detected in emulsions using previous methods and apparatus (K. Shoda, et al., J. Phys. Soc. Japan, 16: 1807(1961)). Spectral types differ between odd and even Z nuclei. Data are presented in graphical form.