ek ee ee ee ee ee ee 1 : concrete:“structures:and:‘the:several. : designs:of:heavy;| medium; and:Lightic : oe“Bteel: ‘frame‘structures:ascwellvas:‘thidse“ofSréinforcedéconcretesdesign ae CEESS99“give.specificdataon!behavior:~undergroundshock#andfseiemicsaistty Soe ee ance’venticipated’fromthe“underground’‘detonatLonsorant‘atomic;sboubvs: <>eit _ > . =a Sar : hte gang ai ew pes tes a ls OT Feet yh!ME ondiat = f Sya a “hs $0. - gh a low amy a mo fe. aoe tom “Valuable observations were made of: the> radiologicel safety cook tion under actuak field conditions. — Radiation instrument and source loan program. During the mont . arrangements were made for the loan of instruments and sources for ci defense training purposes as follows: Instruments: Sources: New Jersey State Civil Defense Agency Georgia State Civil Defense Agency Rock Island, Illinois Georgia State Civil Defense Agency Tennessee State Civil Defense Agency . - Rock Island, Illinois Design criteria into the effectiveness material at an angle. on the matter, but the may be used. activities. Inquiry Was continued during Octpber of shielding where gamma rays enter the shielfiing There appears to be a lack of experimental evgldence consensus is that the unmodified slant dimensfions The plans of the storage facilities at Rocky Flats were examifned and approved. Several portions of the pamphlet, “Design Criteria,“ which tlle Division of Construction and Supply is preparing as a guide for arcHitect- engineers on AEC projects, were received during the month, and certdin Radiation Instruments Branch . oc intillation counter symposium. Plans are being formulated for a@ symposium which is to be held at the National Bureau of Standardg and will be jointly sponsored by the Institute of Radio Engineers, Ameyfican Institute of Electrical Engineers, the Bureau of Standards, and th@ U. 5. Atomic Energy Commission. It is planned to invite a number of perdons from the atomic energy projects and from industrial firms in Canadq and the United Kingdom which manufacture photomultiplier tubes. ; y BOR Ihe Branch participated in a meeting to review the report of Harris and Associates on the Savannah River Operations called by th Divisions of Production and Construction and Supply. TF changes suggested.

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