Moses Lake Fishery Restoration Project : FY 2000 Annual Report. (open access)

Moses Lake Fishery Restoration Project : FY 2000 Annual Report.

The Moses Lake Project (project No. 199502800) was first funded during FY 99 and field studies commenced October 2000. Later review of the proposal by the ISRP revealed perceived shortcomings. Immediately following the ISRP review Washington Department of Fish and Wildlife (WDFW) personnel were in contact with the Northwest Power Planning Council (NWPPC) regarding further options. The NWPPC allowed WDFW to re-submit the first proposal revision that was followed in June 2001 by a second negative review by the ISRP. In August 2001, the NWPPC authorized a third and final submission of the proposal and limited funding extension. Therefore, proposal revisions and resubmissions limited progress in data collection and analysis. This report covers work conducted within the submitted scope of work (FY 2000, September 27, 2000--September 26, 2001) and incorporation of the suggested modifications to the proposal. The bulk of the work covered by this report concentrated on data collection.
Date: February 1, 2003
Creator: Burgess, Dave
System: The UNT Digital Library
CdWO4-Boron FY 2000 Task 4 Completion Report (open access)

CdWO4-Boron FY 2000 Task 4 Completion Report

The fabrication of boron-covered crystal scintillation detectors is described. Bulk boron-loaded epoxy material was cast and cut into 0.5 mm-thick wafers that were mounted on CdWO{sub 4} and CsI(Tl) crystals. The crystals were mounted on miniature photomultiplier tubes and gamma spectra were obtained with the detectors. The ability of these small detectors to produce spectra that can be analyzed to provide isotopic identification has been demonstrated. In addition, the detector can produce a signature indicating the presence of neutrons. The same miniature size of these detectors that makes them attractive for hand-held portable use, may be a limiting factor in their efficiency. The small size of the scintillation crystals makes them not as efficient as larger NaI(Tl) crystals simply by virtue of significantly decreased sensitive volume and surface area. It may be worthwhile to consider slightly larger crystals (approximately 15 mm cubic CdWO{sub 4}) mounted on rectangular photomultipliers in a detecting head connected to the electronics package by a signal cable.
Date: February 1, 2001
Creator: Bell, Z. W. & Moyer, M. W.
System: The UNT Digital Library
Portable Detector FY 2000 Task 4 Completion Report (open access)

Portable Detector FY 2000 Task 4 Completion Report

The fabrication of boron-covered crystal scintillation detectors is described. Bulk boron-loaded epoxy material was cast and cut into 0.5 mm-thick wafers that were mounted on CdWO{sub 4} and CsI(Tl) crystals. The crystals were mounted on miniature photomultiplier tubes and gamma spectra were obtained with the detectors. The ability of these small detectors to produce spectra that can be analyzed to provide isotopic identification has been demonstrated. In addition, the detector can produce a signature indicating the presence of neutrons. The same miniature size of these detectors that makes them attractive for hand-held portable use, may be a limiting factor in their efficiency. The small size of the scintillation crystals makes them not as efficient as larger NaI(Tl) crystals simply by virtue of significantly decreased sensitive volume and surface area. It may be worthwhile to consider slightly larger crystals (approximately 15 mm cubic CdWO{sub 4}) mounted on rectangular photomultipliers in a detecting head connected to the electronics package by a signal cable.
Date: February 1, 2001
Creator: Bell, Z. W. & Moyer, M. W.
System: The UNT Digital Library
Texas Health Professions Council Annual Report: 2000 (open access)

Texas Health Professions Council Annual Report: 2000

Report on the activities of the Health Professions Council for fiscal year 2000, highlighting the organization's accomplishments and budget.
Date: February 1, 2001
Creator: Texas. Health Professions Council.
System: The Portal to Texas History