Internal dosimetry technical basis manual (open access)

Internal dosimetry technical basis manual

The internal dosimetry program at the Savannah River Site (SRS) consists of radiation protection programs and activities used to detect and evaluate intakes of radioactive material by radiation workers. Examples of such programs are: air monitoring; surface contamination monitoring; personal contamination surveys; radiobioassay; and dose assessment. The objectives of the internal dosimetry program are to demonstrate that the workplace is under control and that workers are not being exposed to radioactive material, and to detect and assess inadvertent intakes in the workplace. The Savannah River Site Internal Dosimetry Technical Basis Manual (TBM) is intended to provide a technical and philosophical discussion of the radiobioassay and dose assessment aspects of the internal dosimetry program. Detailed information on air, surface, and personal contamination surveillance programs is not given in this manual except for how these programs interface with routine and special bioassay programs.
Date: December 20, 1990
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Recent developments in neutron electric dipole moment and related CP violating quantities (open access)

Recent developments in neutron electric dipole moment and related CP violating quantities

We summarize recent theoretical developments in CP violation related to the neutron electric dipole moment, chromo-electric dipole moments for quarks, chromo-electric dipole moment for gluon, and electric dipole moments for electron and W boson. 31 refs.
Date: December 20, 1990
Creator: Chang, D. (Northwestern Univ., Evanston, IL (USA). Dept. of Physics and Astronomy Fermi National Accelerator Lab., Batavia, IL (USA))
Object Type: Article
System: The UNT Digital Library
Adapting an x-ray/debris shield to the cascade ICF power plant: Neutronics issues (open access)

Adapting an x-ray/debris shield to the cascade ICF power plant: Neutronics issues

A neutronics analysis has been carried out to determine the effects on the Cascade ICF reactor concept of adding a solid-lithium x-ray and debris shield to each ICF capsule. Results indicate that tritium breeding in LiAlO{sub 2} is possible with a modest isotopic enhancement in {sup 6}Li (to 15%). The shallow-burial index is greater than 1 (indicating that deep burial may be required) if the blanket is kept in the reactor for more than 2.5 yr. Nine percent of the total thermal power is unrecoverable. Parts of the chamber wall may require replacement once during the reactor life due to radiation damage. Part of the SiC chamber end cap must be replaced annually. The reactor may not require any nuclear-grade construction. 20 refs., 4 figs., 3 tabs.
Date: December 20, 1990
Creator: Tobin, M.T.
Object Type: Article
System: The UNT Digital Library
Grain boundary diffusion in oriented Ni sub 3 Al bicrystals containing boron (open access)

Grain boundary diffusion in oriented Ni sub 3 Al bicrystals containing boron

The present research program entitled Grain Boundary Diffusion in Oriented Ni{sub 3}Al Bicrystals Containing Boron'' was granted to Lehigh University for a period of three years (September 1, 1986 to August 31, 1989). The work on grain boundary diffusion in Ni{sub 3}Al was partially completed. On the other hand, a number of new properties have been explored. Some additional efforts have been made on diffusion in newly discovered oxide superconductors.
Date: December 20, 1990
Creator: Chou, Y.T.
Object Type: Report
System: The UNT Digital Library
Neutronics analysis for HYLIFE-II (open access)

Neutronics analysis for HYLIFE-II

A preliminary neutronics analysis of the HYLIFE-2 reactor concept gives a tritium breeding ratio of 1.17 and a system energy multiplication factor of 1.14. Modified SS-316 (in which Mn is substituted for Ni) is superior to Hastelloy X and Hastelloy N as a firstwall material considering He generation, dpa-limited lifetime, and shallow-burial index. Since Flibe is corrosive to Mn metals, however, a favorable first-wall material is yet to be decided on. Flibe impurities considered (e.g., inherent impurities and those arising from wall erosion or secondary-coolant leakage) do not increase the hazard to the public over that of pure Flibe. The main issues for HYLIFE-2 are the high shallow-burial index (106) and the requirement to contain some 99.7% of the {sup 18}F inventory to prevent its release to the public 18 refs., 3 figs., 9 tabs.
Date: December 20, 1990
Creator: Tobin, M.T.
Object Type: Article
System: The UNT Digital Library
Positron Lifetime Studies of Defect Structures in Ba Sub 1-X K Sub X BiO Sub 3 (open access)

Positron Lifetime Studies of Defect Structures in Ba Sub 1-X K Sub X BiO Sub 3

Temperature-dependent positron lifetime experiments have been performed from room temperature to cryogenic temperatures on Ba{sub 1-x}K{sub x}BiO{sub 3}, for x = 0.4 and 0.5. From the temperature dependence of the positron lifetime in the normal state, we observe a clear signature of competition between separate defect populations to trap the positron. Theoretical calculations of lifetimes of free or trapped positrons have been performed on Ba{sub 1-x}K{sub x}BiO{sub 3}, to help identify these defects. Lifetime measurements separated by long times have been performed and evidence of aging effects in the sample defect populations is seen in these materials. 5 refs., 3 figs.
Date: December 20, 1990
Creator: O'Brien, J. C.; Howell, R. H.; Radousky, H. B.; Sterne, P. A.; Hinks, D. G.; Folkerts, T. J. et al.
Object Type: Article
System: The UNT Digital Library
(The ocean's role in the global carbon cycle) (open access)

(The ocean's role in the global carbon cycle)

The traveler collaborated with Dr. J. L. Sarmiento of the Program in Atmospheric Sciences, Princeton University, and Dr. U. Siegenthaler of the University of Bern in box-model studies of the potential enhancement of oceanic CO{sub 2} uptake by fertilizing the southern ocean with iron. As a result of this collaboration, a letter describing the results was submitted to the journal Nature. Sensitivity studies were carried out to gain a better understanding of the processes involved for a hypothetical iron fertilization of the ocean. An article that describes this work has been submitted to the journal Global Biogeochemical Cycles. The traveler and U. Siegenthaler are preparing a journal article describing a box model of the global carbon cycle that is an extension of the one-dimensional box-diffusion model. The traveler attended Oceanography 590b at the University of Washington in Friday Harbor. While at Friday Harbor, he started to collaborate with Drs. M. Warner, R. Gammon, and J. Bullister, all from the University of Washington, Seattle, to calibrate the global carbon cycle model with chlorofluorocarbon (CFC)-11 and CFC-12. The traveler started collaboration with Drs. J. C. Orr and J. L. Sarmiento to calculate apparent eddy diffusivities from the Princeton three-dimensional ocean model. The …
Date: December 20, 1990
Creator: Joos, L.F.
Object Type: Report
System: The UNT Digital Library
Mechanisms of CP violation in gauge theory and the recent developments (open access)

Mechanisms of CP violation in gauge theory and the recent developments

Various mechanisms of CP violation in gauge theory are reviewed. We discuss the impact of recent developments associated with electric dipole moment(EDM) of neutron (D{sub n}), EDM of quarks(D{sub q}), chromo-EDM of quarks(D{sub q}{sup c}), chromo-EDM of gluon(D{sub G}{sup c}), EDM of electron(D{sub e}), and EDM of W boson(D{sub W}). 89 refs., 31 figs.
Date: December 20, 1990
Creator: Chang, D. (Northwestern Univ., Evanston, IL (USA). Dept. of Physics and Astronomy)
Object Type: Article
System: The UNT Digital Library
Texas Attorney General Opinion: JM-1266 (open access)

Texas Attorney General Opinion: JM-1266

Document issued by the Office of the Attorney General of Texas in Austin, Texas, providing an interpretation of Texas law. It provides the opinion of the Texas Attorney General, Jim Mattox, regarding a legal question submitted for clarification: Whether a city council member may simultaneously serve as a county special district or school district employee, or as a director of a navigation district (RQ-2145)
Date: December 20, 1990
Creator: Texas. Attorney-General's Office.
Object Type: Text
System: The Portal to Texas History
Texas Attorney General Opinion: JM-1267 (open access)

Texas Attorney General Opinion: JM-1267

Document issued by the Office of the Attorney General of Texas in Austin, Texas, providing an interpretation of Texas law. It provides the opinion of the Texas Attorney General, Jim Mattox, regarding a legal question submitted for clarification: Authority of the legislature to permit casino games of chance without a constitutional amendment (RQ-2102)
Date: December 20, 1990
Creator: Texas. Attorney-General's Office.
Object Type: Text
System: The Portal to Texas History
Internal dosimetry technical basis manual (open access)

Internal dosimetry technical basis manual

The internal dosimetry program at the Savannah River Site (SRS) consists of radiation protection programs and activities used to detect and evaluate intakes of radioactive material by radiation workers. Examples of such programs are: air monitoring; surface contamination monitoring; personal contamination surveys; radiobioassay; and dose assessment. The objectives of the internal dosimetry program are to demonstrate that the workplace is under control and that workers are not being exposed to radioactive material, and to detect and assess inadvertent intakes in the workplace. The Savannah River Site Internal Dosimetry Technical Basis Manual (TBM) is intended to provide a technical and philosophical discussion of the radiobioassay and dose assessment aspects of the internal dosimetry program. Detailed information on air, surface, and personal contamination surveillance programs is not given in this manual except for how these programs interface with routine and special bioassay programs.
Date: December 20, 1990
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Grain boundary diffusion in oriented Ni{sub 3}Al bicrystals containing boron. Final technical report, September 1, 1986--August 31, 1990 (open access)

Grain boundary diffusion in oriented Ni{sub 3}Al bicrystals containing boron. Final technical report, September 1, 1986--August 31, 1990

The present research program entitled ``Grain Boundary Diffusion in Oriented Ni{sub 3}Al Bicrystals Containing Boron`` was granted to Lehigh University for a period of three years (September 1, 1986 to August 31, 1989). The work on grain boundary diffusion in Ni{sub 3}Al was partially completed. On the other hand, a number of new properties have been explored. Some additional efforts have been made on diffusion in newly discovered oxide superconductors.
Date: December 20, 1990
Creator: Chou, Y. T.
Object Type: Report
System: The UNT Digital Library
Winter Fuels Report: Week Ending December 14, 1990. [Contains Glossary] (open access)

Winter Fuels Report: Week Ending December 14, 1990. [Contains Glossary]

This report is intended to provide concise, timely information to the industry, the press, policymakers, consumers, analysts, and state and local governments on the following topics: distillate fuel oil net production, imports and stocks for all PADD's and product supplied on a US level; propane net production, imports and stocks for Petroleum Administration for Defense Districts (PADD) I, II, and III; natural gas supply and disposition and underground storage for the United States and consumption for all PADD's; residential and wholesale pricing data for propane and heating oil for those states participating in the joint Energy Information Administration (EIA)/State Heating Oil and Propane Program; crude oil and petroleum price comparisons for the United States and selected cities; and US total heating degree-days by city. This report will be published weekly by the EIA starting the first week in October 1990 and will continue until the first week in April 1991. 34 figs., 12 tabs.
Date: December 20, 1990
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Summary of All Reported Accidents in Rural Areas of Texas for November 1990 (open access)

Summary of All Reported Accidents in Rural Areas of Texas for November 1990

Monthly report providing tabular statistical information about motor vehicle accidents in rural areas of Texas during 1990, with data broken out by various criteria including number of persons, locations, types of accidents, time of day, and other factors.
Date: December 20, 1990
Creator: Texas. Department of Public Safety. Statistical Services.
Object Type: Report
System: The Portal to Texas History
Summary of All Reported Accidents in the State of Texas for November 1990 (open access)

Summary of All Reported Accidents in the State of Texas for November 1990

Monthly report providing tabular statistical information about motor vehicle accidents in Texas during 1990, with data broken out by various criteria including number of persons, locations, types of accidents, time of day, and other factors.
Date: December 20, 1990
Creator: Texas. Department of Public Safety. Statistical Services.
Object Type: Report
System: The Portal to Texas History
Texas Auto Visitor Survey Report: 1990 Fall (open access)

Texas Auto Visitor Survey Report: 1990 Fall

Quarterly statistical report based on questionnaires submitted by persons visiting Texas.
Date: December 20, 1990
Creator: Texas. Division of Travel and Information.
Object Type: Report
System: The Portal to Texas History