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Summary report of soil removal preliminary excavations. (Report No. ES-389-75-171)

Description: A proposed technique to remove small areas, <2,000 m/sup 2/, of contaminated soil is discussed along with the results of an actual excavation. Based on the results of a trial excavation in uncontaminated soil and an excavation of two trenches in contaminated soil, it is concluded that the techniques described are a satisfactory means of contaminated soil removal. It can be done safely with a release of airborne plutonium a factor of 10 or more below the Environmental Protection Administratio… more
Date: July 1, 1975
Creator: Wickland, C. E.
Partner: UNT Libraries Government Documents Department
open access

Sequence of operations: TFTR assembly and disassembly

Description: A conceptual sequence of operations necessary to complete initial assembly of the Tokamak Fusion Test Reactor (TFTR) are described along with subsequent disassembly operations and special techniques planned for use during radioactive disassembly. Special attention is given in this report to techniques, personnel exposure, and equipment needed to effect the opening and closing of a vacuum vessel port and the installation of the vacuum vessel seal weld cutting machine under radioactive conditions. more
Date: December 1, 1975
Creator: Francy, W. J. & Lampe, R.
Partner: UNT Libraries Government Documents Department
open access

Radiochemical and radioecological studies on Brazilian areas of high natural background. Progress report, October 30, 1974--October 30, 1975. [Etiology of radioinduced chromosomal aberrations in human lymphocytes]

Description: The absorption of /sup 212/Pb and/or /sup 212/Bi by ertythrocytes was investigated in an attempt to explain the in vivo genesis of somatic chromosomal aberrations of the type detected in peripheral blood lymphocytes of workers professionally exposed to /sup 220/Rn and its decay products, as well as in dwellers of Brazilian areas of high natural radioactivity. (auth)
Date: November 1, 1975
Creator: Costa-Ribeiro, C.; Penna-Franca, E.; Rocha-Nogueira, A. & Christian-Pfeiffer, W.
Partner: UNT Libraries Government Documents Department
open access

Sampling hot springs for radioactive and trace elements

Description: A brief description is given of techniques that have proved successful in obtaining samples of hot and cold spring waters for x-ray fluorescence, neutron activation, and radiometric analysis. The sampling methods require only lightweight, portable field apparatus. Various types of springs sampled are illustrated. Chemical geothermometer temperatures from these samples have compared well with reported measured subsurface temperatures. (LBS)
Date: October 1, 1975
Creator: Wollenberg, H. A.
Partner: UNT Libraries Government Documents Department
open access

LMFBR source term iodine attenuation test of bubble breakup/coalescence in LMFBR outlet plenum following large fission gas release

Description: Tests were performed with water in a 0.51-scale model to determine the bubble sizes and degree of contact of liquid and gas in the CRBR outlet plenum following a hypothetical large sudden release of fission gas from the fuel. The test assembly modeled the tops of six fuel subassemblies surrounding a control rod, the chimney above these, and the free space in the outlet plenum up to the suppressor plate. A known volume of gas was introduced rapidly by opening a valve from a pressurized storage r… more
Date: December 1, 1975
Creator: Dickinson, D. R. & Nunamaker, F. H.
Partner: UNT Libraries Government Documents Department
open access

Rain scavenging studies. Progress report No. 11

Description: The modeling of convective storm scavenging processes is going forward on two distinct fronts. The first of these relates to the microphysical processes, particularly to the study of their response to micro-dynamical components of the convective circulation. It is found that the droplet size spectra generated are responsive to variations of vertical velocity due to turbulence within the cloud and to humidity variations due to entrainment processes. Both sets of variations give responses that di… more
Date: May 1, 1975
Creator: Dingle, A. N.
Partner: UNT Libraries Government Documents Department
open access

ARAC system

Description: In spite of the remarkable safety record of the nuclear industry as a whole, recent public concern over the potential impact of the industry's accelerated growth has prompted ERDA to expand its emergency response procedures. The Atmospheric Release Advisory Capability, ARAC, is a computer communications system designed to enhance the existing emergency response capability of ERDA nuclear facilities. ARAC will add at least two new functions to this capability: centralized, real-time data acquisi… more
Date: December 10, 1975
Creator: Kelly, M.F. & Wyman, R.H.
Partner: UNT Libraries Government Documents Department
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