length has been inereased to50-feet for the accomoodation of 50 persons per shelter. Reinforced concrete sipe or corrugaied steel pipe will be utDiised in canstruction. This tentative design, which was reviewed by representatives of 7CDA and the Department of Defense, is considered satisfactary 1f emergency construction is desired, to ainimize hesards to personnel from blaat, radiation and thermal effects of a 20 KT atomic bomb exploded 2,000 feet distant. However, further shelter tests will have to be conducted to confirm our estiustes of the adequacy of the tantative design. Rast River Keet. (Unclaseified). On February 7, representatives tional Security Resources Board, Air Fores, Air Fores Special Weapons Project, Department of Defense, Navy, Rand Corperation, National Fire Protec- tion Association and Stenford Hesearch Institute met in New Tork to trief. project “East River® personnel on the various aspects of atomic warfare. Mr. He. L. Donan, consultant to the Divieion of Biology snd Hedicine, Feprenented the AZC at this meeting and reported on experiences gained fron studies made ty the U. 3. jtrategic Bowbing Survey im World “ar II. Mr. Bowman wes the Director of the Physical Damage Vvivision of U....35, The AEC and the Nationel Cancer e Committes on Radiation jtudies of the Hational Cancer Advisory Cowmeil have been jointly sponsoring studies on sub-husan primtes. 4 meeting to report on the progresa of these studies was held on Pebruary 27-28, 1952 at the Ohio ‘tate University Medical Sehoal, Colwsbus, Chico. Dr. G. L.Dunham, AEC representative on the joint program, attended the meeting along with a group of Hcl grantees and Ac sontractor representztives enzaged in the studies. ary & complete Letial Dose curve has not been run, it would appear that LD 50 for the Rhesus sonkey will fall. somewhere betareen 600 and 700 r a the given time intensity of the sources used, which is probably not from what would be expected in aan from similar sources. Inform- farther exchanged on the sethod of care for these animals in 4 ese work is of importance to the XCI fros the standpoint of earcinagenesiss the AKG from the stendpaint of biological effeats of ionizing radiation; to those interested in nuclear propelled sireraft from the standpoint of effects of moderate doses of whole body radiation on performance and ritical diserimination. OFFICE » SURNAME P |...._-.----..----.------_.--|_..---___ DATE p> |_..-_------.----__-__--__ fee a a Form. AEC-~318 U. S. GOVERNMENT PRINTING OFFICE 16—62761-2 a? *