THE PENETRATION OF GAMMA RADIATION FROM A UNIFORM CONTAMINATION INTO HOUSES. A FIRST REPORT ON SOME FIELD TRIALS
7 ; : 5 ? 9 r measuring the penetration of ionizing radiation into stractures has been developed by the Atomic Energy Research Establishment and the Admiralty Research Laboratcry. Using this technique penetration measurements have been carried out on a small bungalow of conventional brick construction which incorporated various protective measures, so that the relative merits of such measures could be objectively measured. Data are presented graphically. (auth) 263l Waste Disposal Research and Engineering. Operation of the process waste water treatment plant resulted in the lowest annual discharge on record of radioactivity to White Oak Creek A study was made of optimum treatments for the removal of cesium-137 and strontium-90 from process wastes. Data are lncluded on studies of soil disposal facilities; dispersion of radioactivity from White Oak Creek in the Clinch River; the development of an improved well probe for radiologging use; studies of waste burial arcas; ecological studies in White Oak Lake bed and forest sites of the reservation combined with studies on the movement and accumalation of radionuclides in vegetation and herbivorous insects; foilage contamination by local and regiocal fail-out; the containment of fission products by clays and vermiculite; ceslum- 137 tixation by ion exchange; theoretical considerations and laboratory and field investihations of radioactive waste disposal in cavities in natural salt formations; investigations of the disposal of radioactive wastes into deep wells; an evaluation of hazards associated with tank storage of highly concentrated radioactive wastes; and the selection of a site for a tank form. Radiation Physics and Dosimetry. During Operation Hardtack II (fall of 1958) a detailed study was made of the neutron and gamma radiation dose distributions in facsimiles of typical Japanese dwellings exposed to nuclear bomb radiation. Instrumentation and results are discussed. Data are tabulated on the radiation attenuation characteristics of various building materials. The dosimetry of persons exposed during criticality accidents is discussed with particular reference to the June 1958 accident in the Y-12 area in which eight persons received appreciable doses of radiation. Progress is reported in investigations of the physics of dosimetry. Monte Carlo calculations were made of the penetration of weapons radiations in air. Progress is reported in studies on thermoluminescence in ferroelectrics; a statistical analysis of radiation aging in which the information theory is applied; electron capture in oxygen mixtures; measurements of light emission from aluminum foil bombarded by electrons; measurements of electron flux in simulated biological media bombarded by x rays; measurements of the stopping power for electrons of thin metal foils; the development of ion chamber-electrometer personnel dosimeters; determinations of the angular response of a partially-shielded cylindrical dosimeter; and the development of a dosimetry program for criticality accidents. Intemrn Dosimetry. Data are included on 25 dogs exposed to single inhalations of U/sup 3/O/sup 8/ fumes tc determine the biological half-life and per cent retention in the lungs. A Bahco micro-particle classifier was used to separate enriched urarium oxide into several size fractions for use in inhalation exposure studies. An inhalation chamber was designed for the exposure of mice. A portable air sample was designed and built. Data are included from distribution and excretion studies on urarium in rats. A special scintillation counter for measuring the radioactivity of small animals and other samples was designed and built. Analysis of human tissues by emission spectroscopy and flame photometry was continued and data are tabulated on tissues received from Seattle and Tacoma, Washington. The chemical composition of tissues from American and foreign adults is compared. Calculations were made of the
- Research Organization:
- Gt. Brit. Home Office. Civil Defence Dept. Scientific Advisers' Branch, London
- NSA Number:
- NSA-14-002630
- OSTI ID:
- 4206856
- Report Number(s):
- CD/SA-69
- Resource Relation:
- Other Information: Orig. Receipt Date: 31-DEC-60
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
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