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Development and Testing of Standardized Procedures and Reference Data for LWR Surveillance. (open access)

Development and Testing of Standardized Procedures and Reference Data for LWR Surveillance.

The resources and talents of many national and international organizations and laboratories, both governmental and industrial, are being used to establish analysis methods for predicting the embritlement condition of light water reactor (LWR) primary systems.. The exact interrelationships and responsibilites between those developing, uderstanding, combining, and apply state-of-the-art technology in dosimetry, metallurgy, and fracture mechanics for reactor systems analysis are being carefully reviewed and studied. This has resulted in a more comprehensive definition of the scope of new and updated ASTM standards required for the analysis and interpretation of LWR pressure vessel survillance results. Fifteen new and updated ASTM standards have now been identified, together with a restructuring of the main interfaces between the individual standard practices, guides, and methods. This paper briefly discusses these standards and the initial results of multi-laboratory research work involved in their validation and calibration.
Date: February 28, 1979
Creator: McElroy, W. N. & et al.,
System: The UNT Digital Library
Performance Measurement System: recent systems development and applications (open access)

Performance Measurement System: recent systems development and applications

The Performance Measurement System (PMS), a system for managing a given project or program, is described; this system incorporates the value earned for work accomplished approach. Development and application of this system is discussed under the following headings: PMS vs conventional management control systems; PMS implementation on a project/program; PMS data elements (organization, planning and budgeting, accounting, analysis, reports, and performance measurement data elements); recent PMS applications (FFTF, CRBRP, FMEF, and FMIT); and future of PMS. 25 references, 6 figures, 3 tables. (RWR)
Date: March 28, 1979
Creator: Rigney, R. A.
System: The UNT Digital Library
Self-induced rainout from a nuclear weapon (open access)

Self-induced rainout from a nuclear weapon

The conclusions we have reached are that rainout of fresh radioactive debris occurred at Hiroshima and Nagasaki, that this precipitation was initiated either by the weapon itself or by the ensuing fires or by both, and that self-induced rainout can occur and deposit sufficient amounts of radioactivity on the ground to pose a significant collateral damage hazard.
Date: June 28, 1979
Creator: Molenkamp, C.R.
System: The UNT Digital Library
Full surface examination of small spheres with a computer controlled scanning electron microscope (open access)

Full surface examination of small spheres with a computer controlled scanning electron microscope

This report discusses a computer automated stage and Scanning Electron Microscopy (SEM) system for detecting defects in glass spheres for inertial confinement laser fusion experiments. This system detects submicron defects and permits inclusion of acceptable spheres in targets after examination. The stage used to examine and manipulate the spheres through 4..pi.. steradians is described. Primary image recording is made on a roster scanning video disc. The need for SEM stability and methods of achieving it are discussed.
Date: February 28, 1979
Creator: Ward, C.M.; Willenborg, D.L. & Montgomery, K.L.
System: The UNT Digital Library
Primary creep of UO/sub 2/ above 2000/sup 0/C (open access)

Primary creep of UO/sub 2/ above 2000/sup 0/C

A technique for measuring primary creep was developed which facilitates rapid load application to high temperature creep samples. Creep strain measurements for times as short as one second can be made. The strain as a function of time has a logarithmic relationship with a time exponent of 0.7 +- 0.1. Although the resulting expression is in conflict with the normal way of describing the high temperature deformation of fuel under stress, it is possible to incorporate so-called steady state creep into the proposed primary creep relationship. (FS)
Date: August 28, 1979
Creator: Slagle, O. D.
System: The UNT Digital Library
Measurements required to construct the Shiva laser fusion facility (open access)

Measurements required to construct the Shiva laser fusion facility

The construction of a large laser fusion system involves all aspects of metrology. This report covers some of the technical problems encountered and how the science of weights and measures was used to identify and solve them. The techniques used range from very simple and inexpensive handheld equipment to sophisticated scientific apparatus costing thousands of dollars. The success of the 30 trillion watt Shiva laser system would not have been possible without reliable and accurate measurements.
Date: August 28, 1979
Creator: Rien, Howard J.
System: The UNT Digital Library
Current approaches to the management of internally contaminated persons (open access)

Current approaches to the management of internally contaminated persons

Appropriate treatment for internal depositions of some radionuclides can reduce the radiation doses by as much as factors of two to ten. While at first thought that may seem a relatively small therapeutic effect, it is a useful gain for the patient in reducing the dose and may be a significant help in preventing late effects from the radiation. The list of important available treatments include agents that reduce gastrointestinal absorption, blocking and diluting compounds, mobilizing agents, and chelating drugs. Wound irrigation or excision and lung lavage are mechanical techniques that can reduce radionuclide depositions. Successful treatment depends on early application of these drugs and techniques following exposure. This must be done usually on the basis of very limited exposure information, which emphasizes the need for preplanning the medical emergency program if internal radioactive contamination is possible. In most cases, the risks of treatment are well identified. Since the exposure risks are often poorly understood when the decision for treatment must be made, the omission of treatment can be more serious than proceeding with a low or no risk therapeutic regimen.
Date: September 28, 1979
Creator: Voelz, George L.
System: The UNT Digital Library