Document 8OqDvmempvp7EQqw2vRk62Dnk

/ ... i i av.nrUI Uii!t AuhuM, IQ6Q RAOIOACTIV1TY AND X.RADIATION ilrit orbcu. .< What*s Available In the Atomic Energy Literature. Anon. T1D-4550 (6th Rev.) lecluiical Information Service Extension, AEC. 46 pp. (Mar* i960). What unclassified atomic energy literature it available, how to locate And use this information, and how this information may be obtained aro discussed. Guidance le furnished for loeatinq, obtaining, and using fully the information announced in abstract journals, Indu.-teu, bibliographies, and other Informational guides issued by the United States Atomic Energy Commission. < -- Nuclear Sci. Abacs. ?91 Microwave Radiation Haaards. W, E. Morgan. A.M.A. Arch. Ind. Health 21^, 570-573 (June 19601. (See 1HD Abstract 522, July 1959). The author offers the following suggestion, for the control of possible radiation haaards: (1) Avoid any exposure to radio-frequency energy having a power donsity of 0.0! watts pur cm1 or greater. Area* accessible to tran sit personnel and having a power density equal to or gruater than 0. 01 watts per cm1 should be posted with a caution sign and flashing light, and should not be occupied for any length of time. (2) Do not make detailed visual exsminstion of any microwave radiator, reflector, wave guide horn, or magnetron during periods of transmission. (3) Limit the number of personnel having access to areas immediately adjacent to test stonds or benches containing equipment radiating energy of hatarduus power. Only those required to perform specific tests should be present. (4) Use dummy loads, water loads, or uthor absorbent materials whenever possible to absorb the energy output of the transmitter while being operated or tested. (5) When No. 4 cannot be complied with; provide absorbent screening to isolate test stands from each other or from adjacent administrative areas which may be effected by the microwave radiation. U is believed that repeated exposure to radar waves while observing proper precaution does not lead to any cumulative or chronic effects on the bod)-. This seems to bo proven by the lack of evidence showing that anyone has been seriously injured from work ing with radar equipment. There have been some reports In the past concerning alleged in juries, but it is the opinion of most medical scientists that the reported disorders were not caused by radar. i Eftectj of Ultrs-HlRh-Frequency Radiation on Animals. M, Lubin, et si. A.M.A. Arch. Ind. Health ll/ 5S5-5SB (Juno 19^01. \ Twenty-nine rabbits and 44 rats were subjected to repeated whole-body exposure with ultra-high-frequency radiation at about 400 megacycles. About an equal number of animals served as controls. No pathological damage was found which could be attributed to the effects of radiation. -- Authors1 summary < present Health of Children Given X-Ray Treatment to the Anterior Mediastinum in lnf.*ia*y. t fc. A. Conti, G. D, Patton, JancTsT Conti and L. H. Hcmplemann. ! Radiology 74, 386-191 (Mar. I960)." " A survey was made of 1,564 children In Pittsburgh given x-ray treatment to the thymus gland a# a routine between 1938 and 1946. In 224 children, the dlagnoeee of enlarged thymus glands was made at birth. Eighty par cent of these were treated with 200 to 450 r of U0-kvp x-rays through a 4 x4 cm port. Ninety-five per cent of the 1,340 children with thymus glands of normal sire were given 150 r through a port of tha same else. Between 195b and 1958, the families of 89,6% of the treated children were qucelloned about the mcdlesl histories of these children and of their 2,923 untreated siblings. Positive medical data were 233i.