UNCLASSIFIED SS INTERNATIONAL ACTIVITIES port was released at the same time. The AEC concurred in a recommendation of the Depart- ment of State that the United States support the continuation of the Scientific Committee, Topical Conferences AEC financial support in the amount of $6,325 was given to an unclassified conference on’ ’ “Stopping Power,” held at Gatlinburg, Tennessee, Seplember 15~18. The National Science Foundation gave equal support to this conference, which dealt with the penetration of charged particles in matter and was attended by about 50 scientists representing 12 countries. Second Intermational Conference on the Peaceful Uses of Atomic Energy The Second United Nations International Conference on the Peaceful Uses of Atomic Energy, held in Geneva, Switzerland, September 1-13, was the greatest scientific gathering of its kind ever convened. A total of 6,300 persons, including 2,700 accredited delegates from 69 countries and § specialized agencies of the United Nations, 3,600 official observers from 486 countries, and 911 accredited representatives of information media in $6 countries, participated in the sessions held in the United Nations’ European headquarters in the Palais des Nations on the outskirts af Geneva. The primary function of the Conference was the exchange of scientific end technical in-~ formation. The growing volume of this information on the peaceful uses of atomic energy was demonstrated by the fact that more than twice as many papers were submitted in 1858 as were offered in 1955. Delegates from 48 governments and six intergovernmental organizations submitted 2,135 papers on all phases of nuclear science and technology. Even by scheduling five series of parallel technical sessions, the United Nations was able to allow time for the oral presentation of only 722 papers in 77 technical sessions during the 2-week period. All papers will be prirted in the Proceedings of the Conference, which will be published by the United Nations in the spring of 1959, | _. - The technical sessions were supplemented by an impressive array of technical exhibits prepared by 20 nations and displayed in a temporary exhibit building containing 90,000 square feet of floor space constructed on the Palais grounds especially for the Conference. The United Nations also sponsored the showing of more than 50 films provided by nine rations, at regularly scheduled hours during the Conference. . i Unitec States participation. The United States made a major contribution to every phase of the Corterence. More than 700 of the 2,185 technical papers were submitted by the United Stetes, 2s =ere 231 of the 722 papers presented orally. The United States was the only nation to present at least one oral paper in every one of the 77 technical sessions at the Conference. Equality impressive was the United States contribution to the Technica] Exhibit which was viewed by more than 100,000 persons during the 2-week period. The United States exhibit an , “ - on ae occupied roughly almost half of the total exhibit area utilized by the 20 nations represented. Every field of nuclear science and technology was included in the United States area exhibits. Most impressive to both the scientists and the general public was the large number of fullsized operating laboratory devices and experimental equipment, including two research and training reactors, a computer facility, a radioisotope laboratory, a hydrogen babble chamber, a whole-body radiation counter, and seven experimental devices for research on coztrolled thermonuclear reactions. DOE ARCHIVES The technical books, pamphlets, and films displayed by the United Stztes also provided a large and significant body of technical information on the peaceful uses of atomic energy. At .. the Techrical Information Center in the United Siates exhibit, scientists stood three abreast in lines waiting to receive more than 30,000 copies of technical literature distributed duricg the 2 oe“UNCLASSIFIED SR SE R E TSCASeae oa ? a>. Peas | atl