States

1.06 μm 150 psec laser damage study of diamond turned, diamond turned/ polished and polished metal mirrors (open access)

1.06 μm 150 psec laser damage study of diamond turned, diamond turned/ polished and polished metal mirrors

Using a well characterized 1.06 μm 150 ps glass laser pulse the damage characteristics for diamond turned, diamond turned/ polished, and polished copper and silver mirrors less than 5 cm diameter were studied. Although most samples were tested with a normal angle of incidence, some were tested at 45$sup 0$ with different linear polarization showing an increase in damage threshold for S polarization. Different damage mechanisms observed will be discussed. Laser damage is related to residual surface influences of the fabrication process. First attempts to polish diamond turned surfaces resulted in a significant decrease in laser damage threshold. The importance of including the heat of fusion in the one dimensional heat analysis of the theoretical damage threshold and how close the samples came to the theoretical damage threshold is discussed. (auth)
Date: July 24, 1975
Creator: Saito, T. T.; Milam, D.; Baker, P. & Murphy, G.
Object Type: Article
System: The UNT Digital Library
3-D Hydrodynamic Modeling in a Geospatial Framework (open access)

3-D Hydrodynamic Modeling in a Geospatial Framework

3-D hydrodynamic models are used by the Savannah River National Laboratory (SRNL) to simulate the transport of thermal and radionuclide discharges in coastal estuary systems. Development of such models requires accurate bathymetry, coastline, and boundary condition data in conjunction with the ability to rapidly discretize model domains and interpolate the required geospatial data onto the domain. To facilitate rapid and accurate hydrodynamic model development, SRNL has developed a pre- and post-processor application in a geospatial framework to automate the creation of models using existing data. This automated capability allows development of very detailed models to maximize exploitation of available surface water radionuclide sample data and thermal imagery.
Date: August 24, 2006
Creator: Bollinger, J.; Alfred Garrett, A.; Larry Koffman, L. & David Hayes, D
Object Type: Article
System: The UNT Digital Library
A 10 GHz BANDWIDTH, SINGLE TRANSIENT, DIGITIZED OSCILLOSCOPE WITH 20 GHz CAPABILITY (open access)

A 10 GHz BANDWIDTH, SINGLE TRANSIENT, DIGITIZED OSCILLOSCOPE WITH 20 GHz CAPABILITY

EG&G/EM has developed an oscilloscope with a {minus}3 dB bandwidth greater than 10 GHz. Its rolloff characteristics are such that single-transient data greater than 20 GHz may be captured. A demountable CCD camera records the oscilloscope trace and is provided with PC-compatible capture and data processing software. The capabilities of the oscilloscope, camera, and its processing software are described and examples of the system`s performance is shown.
Date: January 24, 1994
Creator: Hudson, C. L.; Kocimski, S. M.; Spector, J.; Thomas, J. B. & Woodstra, R. R.
Object Type: Article
System: The UNT Digital Library
24-Channel Geophone Array for Horizontal or Vertical Boreholes: Final Report (open access)

24-Channel Geophone Array for Horizontal or Vertical Boreholes: Final Report

Improved ground-imaging capabilities have enormous potential to increase energy, environmental, and economic benefits by improving exploration accuracy and reducing energy consumption during the mining cycle. Seismic tomography has been used successfully to monitor and evaluate geologic conditions ahead of a mining face. A primary limitation to existing seismic tomography, however, is the placement of sensors. The goal of this project is to develop an array of 24 seismic sensors capable of being mounted in either a vertical or horizontal borehole. Development of this technology reduces energy usage in excavation, transportation, ventilation, and processing phases of the mining operation because less waste is mined and the mining cycle suffers fewer interruptions. This new technology benefits all types of mines, including metal/nonmetal, coal, and quarrying. The primary research tasks focused on sensor placement method, sensor housing and clamping design, and cabling and connector selection. An initial design is described in the report. Following assembly, a prototype was tested in the laboratory as well as at a surface stone quarry. Data analysis and tool performance were used for subsequent design modifications. A final design is described, of which several components are available for patent application. Industry partners have shown clear support for this …
Date: October 24, 2003
Creator: Westman, Erik C.
Object Type: Report
System: The UNT Digital Library
90-Day safety screen results and final report for tank 241-B-104 push-mode, cores 88 and 89. Revision 1 (open access)

90-Day safety screen results and final report for tank 241-B-104 push-mode, cores 88 and 89. Revision 1

This document reports the final screen results for tank 241-B-104 Push Mode, Cores 88 and 89
Date: October 24, 1995
Creator: Jo, J.
Object Type: Report
System: The UNT Digital Library
100 Areas: (For technical progress letter No. 98), May 14--May 20 (open access)

100 Areas: (For technical progress letter No. 98), May 14--May 20

This technical progress report details 100 Area activities for the time period of May 14 through May 20, 1946.
Date: May 24, 1946
Creator: Jordan, W. E.
Object Type: Report
System: The UNT Digital Library
100 Areas weekly report, February 24, 1955 (open access)

100 Areas weekly report, February 24, 1955

None
Date: February 24, 1955
Creator: Bellas, H. W.
Object Type: Report
System: The UNT Digital Library
105-C overboring thirteen tube outage, March 6, 1961--March 10, 1961 (open access)

105-C overboring thirteen tube outage, March 6, 1961--March 10, 1961

C Reactor was shut down on a scheduled basis at 8:30 a.m. March 6, 1961 for the purpose of overboring 17 process channels. this report will cover that outage and discuss problems encountered in completing the tasks involved in overboring.
Date: March 24, 1961
Creator: Munro, C. A.
Object Type: Report
System: The UNT Digital Library
215 MWD/Ton batch size limits and control in the Bismuth Phosphate Plant (open access)

215 MWD/Ton batch size limits and control in the Bismuth Phosphate Plant

None
Date: May 24, 1954
Creator: Browne, W. G.
Object Type: Report
System: The UNT Digital Library
241-SX sludge profile temperature for March 1 to December 29, 1972 (open access)

241-SX sludge profile temperature for March 1 to December 29, 1972

Data sheets containing 241-SX sludge profile temperatures.
Date: September 24, 1996
Creator: Reich, F.R.
Object Type: Report
System: The UNT Digital Library
241-SY-101 data acquisition and control system (DACS) remote operator interface operational test report (open access)

241-SY-101 data acquisition and control system (DACS) remote operator interface operational test report

The readiness of the upgraded 241-SY-101 Data Acquisition and Control System (DACS) to provide proper control and monitoring of the mixer pump and instrumentation in tank 241-SY-101 was evaluated by the performance of OTP-440-001. Results of the OTP are reported here.
Date: June 24, 1999
Creator: Ermi, A. M>
Object Type: Report
System: The UNT Digital Library
244-AR Vault Interim Stabilization Project Plan (open access)

244-AR Vault Interim Stabilization Project Plan

The 244-AR Vault Facility, constructed between 1966 and 1968, was designed to provide lag storage and treatment for the Plutonium-Uranium Extraction Facility (PUREX) tank farm sludges. Tank farm personnel transferred the waste from the 244-AR Vault Facility to B Plant for recovery of cesium and strontium. B Plant personnel then transferred the treatment residuals back to the tank farms for storage of the sludge and liquids. The last process operations, which transferred waste supporting the cesium/strontium recovery mission, occurred in April 1978. After the final transfer in 1978, the 244-AR facility underwent a cleanout. However, 2,271 L (600 gal) of sludge were left in Tank 004AR from an earlier transfer from Tank 241-AX-104. When the cleanout was completed, the facility was placed in a standby status. The sludge had been transferred to Tank 004AR to support Pacific Northwest National Laboratory [PNNL] vitrification work. Documentation of waste transfers suggests that a portion of the sludge may have been moved from Tank 004AR to Tank 002AR in preparation for transfer back to the AX Tank Farm; however, quantities of the sludge that were moved to Tank 002AR from that transfer must be estimated.
Date: March 24, 2000
Creator: LANEY, T.
Object Type: Report
System: The UNT Digital Library
300 Area fuel supply facilities deactivation mission analysis report (open access)

300 Area fuel supply facilities deactivation mission analysis report

This report presents the results of the 300 Area fuel supply facilities (formerly call ``N reactor fuel fabrication facilities``) Deactivation Project mission analysis. Hanford systems engineering (SE) procedures call for a mission analysis. The mission analysis is an important first step in the SE process.
Date: May 24, 1995
Creator: Lund, D. P.
Object Type: Report
System: The UNT Digital Library
308 Building deactivation mission analysis report (open access)

308 Building deactivation mission analysis report

This report presents the results of the 308 Building (Fuels Development Laboratory) Deactivation Project mission analysis. Hanford systems engineering (SE) procedures call for a mission analysis. The mission analysis is an important first step in the SE process. The functions and requirements to successfully accomplish this mission, the selected alternatives and products will later be defined using the SE process.
Date: May 24, 1995
Creator: Lund, D. P.
Object Type: Report
System: The UNT Digital Library
309 Building deactivation mission analysis report (open access)

309 Building deactivation mission analysis report

This report presents the results of the 309 Building (Plutonium Fuels Utilization Program) Deactivation Project mission analysis. Hanford systems engineering (SE) procedures call for a mission analysis. The mission analysis is an important first step in the SE process. The functions and requirements to successfully accomplish this mission, the selected alternatives and products will later be defined using the SE process.
Date: May 24, 1995
Creator: Lund, D. P.
Object Type: Report
System: The UNT Digital Library
324 Building Baseline Radiological Characterization (open access)

324 Building Baseline Radiological Characterization

This report documents the analysis of radiological data collected as part of the characterization study performed in 1998. The study was performed to create a baseline of the radiological conditions in the 324 Building.
Date: June 24, 2010
Creator: R.J. Reeder, J.C. Cooper
Object Type: Report
System: The UNT Digital Library
324 building safety analysis report supplement (open access)

324 building safety analysis report supplement

Process engineering designs, major equipment and plant facilities to be utilized in commercial nuclear waste preparation and vitrification in the 324 Radiochemical Engineering Building are reviewed with regard to accident potential and consequences. This Safety Analysis Report Supplement compares calculated environmental doses anticipated from the Commercial Nuclear Waste Vitrification Project (CNWVP) routine operations with the average doses from past waste management operations conducted at the Hanford Project and finds them to be significantly less. The calculated CNWVP environmental doses are found to be far below presently applicable ERDA standards and standards proposed by the EPA for nuclear power operations. (DLC)
Date: June 24, 1977
Creator: Dodd, A. O. & Wittenbrock, N. G.
Object Type: Report
System: The UNT Digital Library
324 Facility B-cell quality process plan (open access)

324 Facility B-cell quality process plan

Quality Process Plan for the Restart of Cell Hot-Work. Addition of Table 5B.
Date: November 24, 1998
Creator: RIDDELLE, J.G.
Object Type: Report
System: The UNT Digital Library
324 Facility B-cell quality process plan (open access)

324 Facility B-cell quality process plan

Quality Process Plan for the Restart of Cell Hot-Work. Addition of Table 6a.
Date: November 24, 1998
Creator: RIDDELLE, J.G.
Object Type: Report
System: The UNT Digital Library
400 MeV upgrade for the Fermilab linac (open access)

400 MeV upgrade for the Fermilab linac

Fermilab has plans for a comprehensive accelerator upgrade to open new possibilities for both the fixed target and collider experimental programs. An early step in this program is to increase the energy of the linac from 200 to 400 MeV by replacing the last four of its nine 201 MHz Alvarez tanks with twenty-eight 805 MHz side-coupled cavity chains operating at about 8 MV/m average axial field. The principal purpose is to reduce the incoherent spacecharge tuneshift at injection into the Booster which currently limits both the brightness of the beam, an important determinant of collider luminosity, and total intensity to produce both the antiprotons for the collider and the beams to fixed target experimental areas. Other consequences of higher Booster injection energy expected to contribute to some degree of higher intensity limits and improved operational characteristics include improved quality of the guide field at injection, reduced frequency swing for the rf systems, and smaller emittance for the injected beam. The linac upgrade project has moved from a 1986 study through a development project including structure models and numerical studies to a full-feature module prototyping starting this year.
Date: March 24, 1989
Creator: MacLachlan, J.A.
Object Type: Article
System: The UNT Digital Library
The (178m2)Hf Controversy (open access)

The (178m2)Hf Controversy

Since its discovery in the 1960's the {sup 178m2}Hf isomer has garnered high attention from both the basic and applied communities in nuclear science. It's combination of high spin (16+), long half life (31 yrs), and high excitation energy (2.446 MeV) offer unique possibilities as an energy storage medium. Interest in the isomer was rekindled beginning in 1999 when a series of publications began to appear from a group (referred to here as the ''Texas collaboration'') primarily based at the University of Texas, Dallas [1]. They reported observations that some of the stored energy could be released (''triggered'') when the isomer was exposed to a fluence of photons in the energy range {approx}10 to {approx}60 keV. The implications of this observation are profound. Even though the claimed cross section for the process was {approx}7 orders of magnitude greater than would be predicted from the known systematics of photon absorption by nuclei in this mass range [2], such a highly efficient method for triggering the isomeric deexcitation immediately suggested applications utilizing the explosive or the controlled gradual energy release from a very compact source. The prospect of such applications has focused considerable interest on realizing the promise that is implicit in …
Date: July 24, 2003
Creator: Becker, J. A.; Gemmell, D. S.; Schiffer, J. P. & Wilhelmy, J. B.
Object Type: Report
System: The UNT Digital Library
1987 Gordon Research Conference on Physical Metallurgy. (open access)

1987 Gordon Research Conference on Physical Metallurgy.

None
Date: July 24, 1987
Creator: unknown
Object Type: Article
System: The UNT Digital Library
1994 Annual wildlife survey report. Natural Resource Protection and Compliance Program (open access)

1994 Annual wildlife survey report. Natural Resource Protection and Compliance Program

This report summarizes the results of wildlife surveys and other wildlife monitoring performed from January through December 1994. These surveys are part of a long-term ecological monitoring program conducted under the Natural Resource Protection and Compliance Program (NRPCP). This program is essential in identifying and quantifying fluctuations of wildlife populations, wildlife habitat use, and changes in the species using the Rocky Flats Environmental Technology Site (Site) as year-round or seasonal habitat. Wildlife population densities vary constantly due to natural pressures, and only well-integrated, long-term monitoring can identify which factors influencing wildlife populations are a consequence of natural causes, and which are due to human activities. An integrated monitoring program that gathers data on ecologically interactive species is essential in evaluating population fluctuations. Such data can be an invaluable tool in predicting and avoiding impacts on the ecology of an area due to projected human activities. With 167 species of birds, three big game species, nine species of carnivores, nine species of mid-sized mammals, and 15 small mammal species, the Site provides habitat to a surprising variety of wildlife. Many of these species are sensitive species or indicator organisms that by their presence or, more significantly, by their absence can indicate …
Date: April 24, 1995
Creator: unknown
Object Type: Report
System: The UNT Digital Library
1995 Annual Cathodic Protection Survey Report for the Hanford 200 Area (open access)

1995 Annual Cathodic Protection Survey Report for the Hanford 200 Area

Compilation of the CY 1995 Cathodic Protection Surveys performed for the 200 areas (East Tank Farms, West Tank Farms, Evaporator, PFP, Purex, 222-S Labs).
Date: September 24, 1996
Creator: Bowman, T. J.
Object Type: Report
System: The UNT Digital Library