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EXPERIMENTAL EVALUATION OF THE RADIATION PROTECTION AFFORDED BY TYPICAL OAK RIDGE HOMES AGAINST DISTRIBUTED SOURCES

Description: The protection afforded against simulated fall-out radiation has been evaluated for several typical homes in the Oak Ridge area. Nine houses were chosen to represent a variety of construction materials, topographical conditions and sizes; they included three types of Oak Ridge Cemesto houses, one concrete-block house with a basement fall-out shelter, and two wood-frame houses. The protection factor (ratio of open-field exposure dose rate to exposure dose rate in the house) in all these houses ranged from 2 to 5 on the main floor and from 5 to 30 in the basements, except in the fall-out shelter, where the protection factor was greater than 100. The analysis showed that sloping lots. common to Oak Ridge, do not appreciably affect the protection factor for the main floor. Owing to the generally increased exposure of the basement walls on such lots, the protection factors in the basements were typically lower than in similar basements built on level lots. (auth)
Date: January 1, 1960
Creator: Strickler, T.D. & Auxier, J.A.
Partner: UNT Libraries Government Documents Department

ARMY GAS-COOLED REACTOR SYSTEMS PROGRAM. GCRE-I HAZARDS SUMMARY REPORT. ADDENDUM III

Description: The hazards evaluation was modified to reflect certain changes made to the equipment as a result of operating experience. These changes included: the addition of a startup interlock circuit; the modification of a startup interlock circuit; several minor modifications to the control rod actuators; and the addition of the tube-sheet cooling system. (M.C.G.)
Date: May 1, 1960
Partner: UNT Libraries Government Documents Department

ECOLOGICAL SAMPLING AND METEOROLOGICAL CALCULATION OF FALLOUT ON FORESTS NEAR OAK RIDGE

Description: Spatial patterns of radioactive contuamination on forest foliage were measured by gamma spectrometry and are discussed with respect to local vs. world- wide origin of the fallout and implications for ecology, health physics, and management of nuclear facilities. In September 1959, I/sup 131/ on dogwood leaf samples varied from over 500 mu mu c/g dry wt near Oak Ridge National Laboratory stacks to 1 to 7 mu mu c/g near the margins of the Oak Ridge Reservation. Stack fallout tended to occur closer to the source than was calculated from hourly wind data by an IBM 610 computer program based on Culkowski' s adaptation of the SuttonChamberlain theory of atmospheric diffusion and deposition. Over most of the Reservation levels of Ru/sup 106/ Cs/sup 137/ Zr/sup 9/ >s/sup 5/Nb/sup 95/ and Ce/sup 144/ were similar to levels found elsewhere (2 to 9, 1 to 3, 2 to 9, and 10 to 20 mu mu c/g respectively) and were presumably controlled by weapons fallout. Higher levels were found in small areas and indicate the need for attention to localized contamination, even though indirect estilevels considered hazardous from the standpoint of health physics. (auth)
Date: September 20, 1961
Creator: Olson, J.S.
Partner: UNT Libraries Government Documents Department

MECHANISMS OF FRACTIONATION

Description: The mechanisms involved in fractionation as measured in samples obtained early from drone planes during the cloud rise or from manned aircraft a few hours later are discussed. A key problem in fractionation is the formation of the precipitate in the cloud, and an attcmpt is made to describe this mechanism. (W.D.M.)
Date: November 16, 1953
Creator: Magee, J.L.
Partner: UNT Libraries Government Documents Department

RADIATION HAZARDS ENCOUNTERED IN ARC MELTING THORIUM

Description: A project to provide information on the hazards associated wlth arc melting of Th is described. A general airsampling analysis was made to determine the separation, concentration, and distribution of Th daughter (decay) products throughout arc melting, machining, and forging processes found in a handling facility. The value of well coordinated health physics program is stressed in connection with potential health hazards and personnel protection. Building, equipment, and exhaust ventilation requirements for such a facility are discussed, along wlth special handling methods. (auth)
Date: November 1, 1960
Creator: Lowery, R.R.
Partner: UNT Libraries Government Documents Department

OSHA State Plans: In Brief, with Examples from California and Arizona

Description: This report examines various state plans under the Occupational Safety and Health Act of 1970 (OSH Act), which authorizes states to establish their own occupational safety and health plans and preempt standards established and enforced by the Occupational Safety and Health Administration (OSHA). OSHA must approve state plans if they are "at least as effective" as OSHA's standards and enforcement. The report provides specific examples from California and Arizona
Date: June 3, 2016
Creator: Szymendera, Scott D.
Partner: UNT Libraries Government Documents Department

Fair Pay and Safe Workplaces Order: Answers to Questions

Description: This report discusses Executive Order 13673, Fair Pay and Safe Workplaces, which has the stated intent of increasing “efficiency and cost savings” by ensuring that executive branch procurement contractors understand and comply with labor laws.
Date: July 15, 2015
Creator: Perry, Rodney M. & Manuel, Kate M.
Partner: UNT Libraries Government Documents Department

Respirable Crystalline Silica in the Workplace: New Occupational Safety and Health Administration (OSHA) Standards

Description: This report discusses the Occupational Safety and Health Administration's (OSHA) newly published new standards regulating exposure to crystalline silica in the workplace. Under the new standards, the Permissible Exposure Limit (PEL) for crystalline silica will be reduced to 50 µg/m3 (micrograms per cubic meter of air). Employers will be required to monitor crystalline silica exposure if workplace levels may exceed 25 µg/m3 for at least 30 days in a year and provide medical monitoring to employees in those workplaces. In the case of construction workers, medical monitoring is required only if the new standards require workers to wear respirators for at least 30 days in a year.
Date: May 31, 2017
Creator: Szymendara, Scott D.
Partner: UNT Libraries Government Documents Department

The Federal Employees' Compensation Act (FECA): Workers' Compensation for Federal Employees

Description: This report discusses the Federal Workers Compensation Act (FECA) which governs disability and death benefits for federal employees who are injured, become ill, or are killed on the job. Key policy issues facing the program, including the disproportionate share of claims and program costs attributed to postal workers, the payment of FECA benefits after retirement age, the overall level of FECA disability benefits as compared with those offered by the states, the administration of the FECA program, and the costs associated with prescriptions for compounded medications are also discussed. A legislative history of the FECA program is provided in Appendix B.
Date: April 26, 2017
Creator: Szymendara, Scott D.
Partner: UNT Libraries Government Documents Department

Workers' Compensation: Overview and Issues

Description: This report discusses workers' compensation programs including common elements and their history. Non-compulsory programs in Texas and Oklahoma are also discussed including the recent ruling that the system in Oklahoma violated their state constitution.
Date: October 18, 2017
Creator: Szymendara, Scott D.
Partner: UNT Libraries Government Documents Department

Sandia National Laboratories approach to emergency preparedness

Description: Sandia National Laboratories is located on Kirtland AFB on Albuquerque, NM. The Air Force Base proper covers about 74 square miles in which SNL maintains 5 technical areas and the Coyote Test Field. These SNL areas add up to about 18,000 acres. However, SNL has other locations where we conduct corporate emergency planning: Kauai Test Facility (at Pacific Missile Range Facility in Kauai, Hawaii), and the Tonopah Test Range (Nevada). SNL/California located in Livermore has an independent emergency preparedness organization for their emergency planning activities.
Date: December 31, 1997
Creator: Galegar, F. H.; Yourick, P. D. & Ross, S. A.
Partner: UNT Libraries Government Documents Department

Electrical Potential Transfer Through Grounding and the Concern for Facility and Worker Safety

Description: Electrical grounding is probably the most over-looke~ ignored, and misunderstood part of electrical energy source circuits. A faulty ground circuit am have lethal potential to the worker, can damage electrical equipment" or components, and can lead to higher consequences. For example, if the green-wire ground return circuit (in a three-wire power circuit) is fhulty or is open (someone cut the prong, etc.) a person can receive an electrical shock by touching the conductive enclosure, and the result can be lethal. If high explosives are involved m the process, sneak electrical energy paths may cause electrical threats that lead to ignition, which results to higher damage consequences. Proper electrical grounding is essential to mitigate the electrical hazard and improve work place safety. A designer must ask the question, "What grounding is proper?" continuously through a process design and in its application. This question must be readdressed with any process change, including tiom layout, equipment, or procedure changes. Electrical grounding varies ilom local work area grounding to the multi-point grounding found in large industrial areas. These grounding methods become more complex when the designer adds bonding to the grounding schemes to mitigate electrostatic discharge (ESD) and surfkce potentials resulting from lightning currents flowing through the facility structure. Figure 1 shows a typical facility power distribution circuit and the current flow paths resulting ffom a lightning discharge to a facility. This paper discusses electrical grounding methods and their characteristics and identifies potential sneak paths into a process for hazardous electrical energy.
Date: September 13, 1998
Creator: Konkel, Herbert
Partner: UNT Libraries Government Documents Department