a nee Oe mw Neutrons, : a, Neutron spect m b, Neutron flux versus distance c, Neutron absorption and scattering Neutron flux versus tine 3. Residual contamination 3. Direct contamination be Downwind fall-out ke Radioactive Cloud &. Air sanpling b, Radiation field from cloud ce Long range detection At this meeting Dr. Bradbury raised the question of who would be available to undertake the work outLined in this program, —, d. ANCLASSHFIED Although it was cunsidered desirable to have Dr, Gerhard Dessauer undertake \ the sanma radiation measurements, the AEC felt it was inadvisable to on _ 2. Wy AOE | ory, request his services from the General Electric Company at this tine, Dr, Bradbury agrecd to take the prosram back to Los Alamos for dis~ cussion of possible means of inplenentation, On 29 September 1947 an estinate of the equipment and personnel i which would be needed to implement the progran on gamua radiation measurenents was prepared by Dr. Scoville, Colonel Cooney and with Captain Russell, This was discussed with A meeting was held about 1 October attended by Dr. Fronan, Colonel Cooney, Dr, Clark, Dr. Scoville, Dr. Francis Shonla, of the University of Chicago, and Dr, : Alvin C, Graves, of the University of California Scientifie Laboratory, Los Alamos. It wasagreed that the Radiological Safety Group wer Colonel Cooney would measure the gamma radiation versus distance, It was proposed that Dr, Shonla organise a sroup to measure the samma-ray spectrum which was of particular interest to the ecientists at Los Alamos, Nin}AA SEress BLS: