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This volume records some of the results of research done under the Manhattan Project and the Atomic Energy Commission between 1942 and 1945. It has eight contributing authors and 16 chapters. The greater part of the results reported were obtained by Dr. I. R. Raper while at the Clinton Laboratories during World War II.
The chapters entitled "Techniques of External Irradiation with Beta Rays" records the methods used by the group at the Clinton Laboratories for preparing and evaluating the radioactive sources. Although some work under the Manhattan Project was done with radioactive strontium (Sr89) and radioactive yttrium (Y91), the lack of suitable intense sources of these isotopes prevented their use in the biological experiments; consequently, these experiments were limited to the use of radioactive phosphorus (P32). The balance of the book records the effects on various laboratory animals of beta irradiation as compared with gamma irradiation,
Biological Effects of External Beta Radiation. JAMA. 1952;148(8):687. doi:10.1001/jama.1952.02930080097035