THE PORTABLE $gamma$ RAY EQUIPMENT GUPOS-Cs$sup 137$-800 FOR IRRADIATING SEEDS BEFORE SOWING (in Russian)
Previous experiments which indicated that irradiation of seeds prior to sowing stimulates the growth and the maturing of plants were carried out on a relatively small scale and did not involve a study of the commerical applicability of the method For this reason, the first portable gamma -ray source of the Soviet Union was designed and built at the Institute of Biological Physics of the USSR Academy of Sciences, making it possible to expose about 1 ton of seeds to a daily dose of about 1 r. The device consists of a lead-coated cast- iron body mounted on a movable platform; a rod holding 2 exposure chambers shielded with 3 Pb plugs and 8 tightly encapsulated Cs sources are placed within the body. The low energy Cs/sup 137/ radiation requircs only- one-third of ihe shielding needed for a Co/sup 60/ source of equal strength. The relatively low weight of 1 ton of the unit makes it possible to transport it on a trailer. The dose rate at the surface is less than 3.0 mr/hr and at 1 m less than 0.3 mr/hr, thus being within the permissible level for Group 2 materials of the Soviet transportation code for radioactive materials. The device will be used for agricultural studies in various climatic zones (TTT)
- Research Organization:
- Originating Research Org. not identified
- NSA Number:
- NSA-16-014248
- OSTI ID:
- 4798917
- Journal Information:
- Atomnaya Energ., Vol. Vol: 12; Other Information: Orig. Receipt Date: 31-DEC-62
- Country of Publication:
- Country unknown/Code not available
- Language:
- Russian
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