The experimental cross-section data of the deuteron photodisintegration prior to 1974 are summarized in the photon energy region from 10 to 35 MeV. Since this cross-section is used to normalize cross-sections of other photonuclear reactions, its precise determination is important. The normalization of the ¹³C (γ, n₀) cross-section by the use of that of the deuteron photodisintegration is shown as an example to indicate how the latter affects on the determination of the photonuclear cross-section.

  The summary shows that there are discepancies up to 10％ between experimental data and current theories of the deuteron photodisintegration in this energy region.

  The summary suggests that more definitive experimental date obtained with monocromatic gamma-rays at photon energies between 10 and 20 MeV are necessary for further discussion of the discrepancies.