Froject 2.€1 - Rocket Determination of the Activity Distribution Within the Stabilized Cloud = B. Soule OBJECTIVES < Reekets were fired into olla0) cloud in order to develop the capability of measuring and to explore the spatial distritution of gamma activity within the stem and cloud produced by the detonation of nuclear weapons of megaton yield. It was desired to make measurements ofactivity distritution in clouds resulting from an air detonation, a lani tonation, 3s eye detonation and a water surface de- Besides one AE 0320), theyatcr surface detonaticn, the project has participated in the (CHFROKEF) ani the (ZUNT), A six inch tiameter ground launched rocket capable of attaining 139,0% feet altitude, bearing 2 radiation detector and telemetering ~ equipment was usei te obtain information on the radiation field in the cloud ani stem, Twelve of these units were fired, six at the stem at H ¢ 7 minutes and six at the cloud at H #4 15 minutes. Radiation in- tensity infcrmation (in the ferm of F.M, pulses) was telemetered to two receiving stations where the information was recorded on magnetic tape. RESUITS All reckets fired and good signal strength was arparently received on ten of the twelve channels, The radiation fields that were measured were lower than those previously encountered. Data on channels corre- sponding to rockets shot at the stem indicate that at least one rocket