SE | be appended as a supplement to the technical study. The Subcommittee on Reactors, Materials and Production vnich is. now chaired by Dr, Walter G. Whitman, succeeding Dr, Eger V. Murphree in this position, has offered to meet in about a month to consider such a-study by the Reactor Division should it be available, 3. “In the report of our Thifty-sixth Meeting we flecommended that the Commission support the de sigti: and constructionof an ultra-high energy . particle accelerator in the 15.~ 25 BEV. range; at the Brookhaven National Laboratory: We have reviewed with the Director of the Division of Re- search the. proposal - Submitted by Brookhaven for this project,‘The pro- | posal provides for the design and construction of a proton synchrotron | employing the strong focusing principle, designed to accelerate protons to an energy of 25 BEV, and having a potentiality of ultimately achiev- ing 35 BEV. We find this proposal exactly in accord with the intent of our earlier recommendation and endorse2, the proposal submitted by the 1 Brookhaven National-Laboratory. During this meeting we considered at some length, with the Director of the Division of Research, proposals which have been submitted for the construction of heavy particle accelerators, a linear accelerator at Yale University and at the University of California at Berkeley, and a cyclotron at the Oak Ridge National Laboratory... The aim isto accelerate relatively heavy nuclei, in the range from beryllium to neon, to an. energy of about 10 MEV per nucleon so that they can react with even the heaviest known nuclei. It is believed that an abundance of new nuclear species will be formed as a result of the nuclear reactions of such particles, for example, neutron deficient isotopes throughout the periodic table and isotopes of elements of higher atomic number than californium,. The effects of the high energy heavy particles on biological and chemical systems also appear to be of interest. In view of these research possibilities, we believe that there is ample reason to undertake the construction of at léast one such accelerator at the present time. Because. of the relative abundance of nuclear machines at Oak Ridge and at Ber- keley, we believe that the interests of the Commission and of the — scientific community will best be served if this accelerator is located at Yale University, and we so recommend. We have not reached a conclu- sion on whether the simultaneousonstruction of more than one heavy par~ ticle accelerator would be justified. , We have noted with interest the continuing activities in the study of methods for producing controlled thermonuclear reactions. It is not possible at this time to be assured that the goal of the work will, in