Yonthly Status Report, June 1952 Collaboration with FCDA were held by representatives Biology and uedicine -5- - During the month, several. nestings with FCDA personnel. The Civil the Dt Defense Liaison Branch is undertaking to accumilate and transmit to FCDA all information from research activities of the Commission which bear on civil defense problems. Also made available recently to FCDA are the National Bureau of Standards’ reports and papers of research on shielding against ionising radiation and the first volume of the "Report of the Joint Comnise gion for the Investigation of tha Sffects of the Atomic Bomb in Japane*® On June 29, a further meeting was held with FCDA personnel to discuss specific AEC assistance to FCDA in its test programe It was decided that FCDA would resubmit for formal Commission action a revised proposal for test- ing backyardetype shelters. Cooperation with Disaster panning Coordinator = Dudget estinates received from the fieid ons connection AEC shelter program have been reviewed. Also reviewed wore a draft of a statement dated June 26, 1951, entitled "Selection of Shelter Design" and plans Dllustrating four basic types of shelters presently under conaideratione These shelters have been accepted by the Civil Defense Idaison Branch on a tentative basis for purposes of estinate. In order to assure the maximm return on the shelter investment, 1¢ would be advisable to consider the following factors: le 2. Capacity 3e Siting he Saivage Valus Attack Considerations loan of Instruments and Radioactive inokopes ~ During the month, arrange- ments were @ for of r tection for civil defense training purposes to the Utah State Civil Defense Agency, and for loan of radiae tion sources for the same purpose to the Texas State Department of Health and the District of Columbia and Uaine Civil Defense agenciess Radiation Instruments Branch A meeting was held on June 15, 1951, betwen representatives of Radio Corporation of America, Carbide and Carbon Chemicals, Division of Union Carbide, and the AEC to discuss the continuation of the research contract with BCA for the development of special tubese Progress is being made in the development of a large photocathode surface photomultiplier tube and special tubes for use in pulse height analyzers. Field Coordination ~ The instrumentation facilities at the Oak Ridge National Laboratory and X25 were reviewed. X=25 is presently modifying their "Sampson" instrument to provide for a remote beta-gamaa probe. This instrument will have betaegama sensitivities approaching those of the ordinary beta=»gemna GPO OFFICE ® 16-——-55741—