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  Partner: UNT Libraries Government Documents Department
 Decade: 1990-1999
 Year: 1998
3-D spectral IP imaging: Non-invasive characterization of contaminant plumes. 1998 annual progress report

3-D spectral IP imaging: Non-invasive characterization of contaminant plumes. 1998 annual progress report

Date: June 1, 1998
Creator: Morgan, F.D.; Rodi, W. & Lesmes, D.
Description: 'The overall objective of this project is to develop the scientific basis for characterizing contaminant plumes in the earth''s subsurface using field measurements of induced polarization (IP) effects. Three specific objectives towards this end are: (1) understanding IP at the laboratory level through measurements of complex resistivity as a function of frequency in rock and soil samples with varying pore geometries, pore fluid conductivities and saturations, and contaminant chemistries and concentrations; (2) developing effective data acquisition techniques for measuring the critical IP responses (time domain or frequency domain) in the field; (3) developing modeling and inversion algorithms that permit the interpretation of field IP data in terms of subsurface geology and contaminant plume properties. The authors laboratory experiments to date are described in Appendices A and B, which consist of two papers submitted to the annual SAGEEP conference (Frye et al., 1998; Sturrock et al., 1998). The experiments involved measurements of complex resistivity vs. frequency on a suite of brine saturated sandstone samples. In one set of experiments, the fluid chemistry (pH, ionic strength, and cation type) was varied. In a second set of experiments, the microgeometry of the rock matrix was varied. The experiments showed that spectral IP responses ...
Contributing Partner: UNT Libraries Government Documents Department
THE 15 LAYER SILICON DRIFT DETECTOR TRACKER IN EXPERIMENT 896.

THE 15 LAYER SILICON DRIFT DETECTOR TRACKER IN EXPERIMENT 896.

Date: November 8, 1998
Creator: PANDY,S.U.
Description: Large linear silicon drift detectors have been developed and are in production for use in several experiments. Recently 15 detectors were used as a tracking device in BNL-AGS heavy ion experiment (E896). The detectors were successfully operated in a 6.2 T magnetic field. The behavior of the detectors, such as drift uniformity, resolution, and charge collection efficiency are presented. The effect of the environment on the detector performance is discussed. Some results from the experimental run are presented. The detectors performed well in an experimental environment. This is the first tracking application of these detectors.
Contributing Partner: UNT Libraries Government Documents Department
300 area TEDF permit compliance monitoring plan

300 area TEDF permit compliance monitoring plan

Date: November 20, 1998
Creator: BERNESKI, L.D.
Description: This document presents the permit compliance monitoring plan for the 300 Area Treated Effluent Disposal Facility (TEDF). It addresses the compliance with the National Pollutant Discharge Elimination System (NPDES) permit and Department of Natural Resources Aquatic Lands Sewer Outfall Lease.
Contributing Partner: UNT Libraries Government Documents Department
300 Degree C GaN/AlGaN Heterojunction Bipolar Transistor

300 Degree C GaN/AlGaN Heterojunction Bipolar Transistor

Date: October 14, 1998
Creator: Abernathy, C.R.; Baca, A.G.; Cho, H.; Chow, P.P.; Han, J.; Hichman, R.A. et al.
Description: A GaN/AIGaN heterojunction bipolar transistor has been fabricated using C12/Ar dry etching for mesa formation. As the hole concentration increases due to more efficient ionization of the Mg acceptors at elevated temperatures (> 250oC), the device shows improved gain. Future efforts which are briefly summarized. should focus on methods for reducing base resistance.
Contributing Partner: UNT Libraries Government Documents Department
324 Facility B-cell quality process plan

324 Facility B-cell quality process plan

Date: November 24, 1998
Creator: RIDDELLE, J.G.
Description: Quality Process Plan for the Restart of Cell Hot-Work. Addition of Table 6a.
Contributing Partner: UNT Libraries Government Documents Department
324 Facility B-cell quality process plan

324 Facility B-cell quality process plan

Date: November 24, 1998
Creator: RIDDELLE, J.G.
Description: Quality Process Plan for the Restart of Cell Hot-Work. Addition of Table 5B.
Contributing Partner: UNT Libraries Government Documents Department
327 to 324 Pin tube shipment quality management process plan

327 to 324 Pin tube shipment quality management process plan

Date: November 5, 1998
Creator: HAM, J.E.
Description: The B and W Hanford Company's (BWHC) 327 Facility, in the 300 Area of the Hanford Site, is preparing to ship five Pin Tubes to the 324 Facility for storage and eventual disposition. The Pin Tubes consist of legacy fuel pin pieces and drillings. They will be over-packed in new Pin Tubes and transported to 324 in three shipments. Once received at 324, two of the shipments will be combined for storage as a fissionable material batch, and the other shipment will be added to an existing batch.
Contributing Partner: UNT Libraries Government Documents Department
340 Facility emergency preparedness hazards assessment

340 Facility emergency preparedness hazards assessment

Date: November 25, 1998
Creator: CAMPBELL, L.R.
Description: This document establishes the technical basis in support of Emergency Planning activities for the 340 Facility on the Hanford Site. Through this document, the technical basis for the development of facility specific Emergency Action Levels and Emergency Planning Zone, is demonstrated.
Contributing Partner: UNT Libraries Government Documents Department
1997 Annual Site Environmental Report (ASER)

1997 Annual Site Environmental Report (ASER)

Date: October 1, 1998
Creator: Holden, Gene
Description: The SLAC program centers around experimental and theoretical research in elementary particle physics using accelerated electron beams and a broad program of research in atoms and solid-state physics, chemistry, and biology using synchrotron radiation from accelerated electron beams. There is also an active program in the development of accelerators, detectors, and new sources and instrumentation for synchrotron radiation research. The main instrument of research is the 3.2-km linear accelerator (linac) that generates high intensity beams of electrons and positrons up to 50 GeV, which are among the highest energy electron and positron beams available in the world. The linac is also used for injecting electrons and positrons into colliding-beam storage rings for particle physics research. The Positron-Electron Project (PEP) storage ring is about 800 meters in diameter. The PEP program was completed several years ago. PEP is now being upgraded to serve as an Asymmetric B Factory (or PEP-II) that will study the B meson. PEP-II will make use of much of PEP's existing equipment and infrastructure, and is scheduled for completion in 1998. A smaller storage ring, the Stanford Positron-Electron Asymmetric Ring (SPEAR) has its own smaller linac and a booster ring for injecting accelerated beams of electrons. SPEAR ...
Contributing Partner: UNT Libraries Government Documents Department
1997 Annual Site Environmental Report Sandia National Laboratories Albuquerque, New Mexico

1997 Annual Site Environmental Report Sandia National Laboratories Albuquerque, New Mexico

Date: August 1, 1998
Creator: Duncan, D.; Fink, C.H. & Sanchez, R.
Description: No abstract prepared.
Contributing Partner: UNT Libraries Government Documents Department
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