~ sO . . wn iv” toe ~ ¢ x AR! Ag” 0) 4 . LASSI Project 7.1-17/RS(BS EMJ=11 - Test of Crystal Dosimeters to 2100 yards were recovered, The data fror ‘hese dosimeters will be correlated with the gamm radiation ws distance data as obtained from the films, The results from test X-Ray will be considered in the place- mont of the dosimeters for test Yoke, Project 7.1-17/RS(Mi)-12 + Exposure of Biological Assay Material All exposed materials were recovered. All the cans, some of which aN ea @ _ x at ! a na 4 , at £ L 2 -~ . om ay be em . sat BES: XK<A ~ oe "4h. Me.ns af . A Pi cet ~~», kt: w ‘" d ec os ue Crystal dosimeters which had been exposed at distances fran 300 were located as close as 1000 feet were blown off their supports but this produced only negligible damage to the materials. While lying on the ground the temperature did rise to 110° F from exposure to the sun but it is considered that this was not sufficient to damage the samples except. possibly the neurospora, There was also a delay in the courie. shipment of the neurospora to Cal.fornia Institute of Technology, but a special trip was arranged so that this material was probably not lost for study. Project 7.1-17/RS(BL)-13 = Thermal Radiation Plaques Recovery of expoced materials will. give a fair value of energy radiation, A rougi estimate of color distribution and same idea of the ~at wo. ihm ae we mS seh duration of the important part of the radiation at specific distances will be obtained. ball of fire, Shadows will give an indication of the extent of the Birds brought down at these distances will also give a check en energy flux, There will be some evidence on the time of radia- tion and the size cf the ball of fire in its effective phase. The effect - 7% - me eee nl eR a RIMI Rf a