A common process in the chemical industry employs the leaching of a desirable component from an insoluble substrate, followed by filtration to produce a clarified solution of the desirable component and a discardable residue. The work described here involved evaluating sintered metal filter media for separating dissolved plutonium from undissolved residues generated at various locations owned by the Department of Energy throughout the United States. The work was performed during a six-week assignment at the Savannah River Laboratory as part of a high school science enrichment program conducted in the summer of 1989. The leach step used included dissolving the plutonium-containing solids in a solution of nitric-hydrofluoric acid. To simulate the partial solubility of the actual plutonium-containing residues, a non-radioactive power plant flyash was used. 6 refs., 14 figs., 1 tab.

This memorandum is an introduction to thermal imaging systems and their use. Emission of infrared radiation from ideal and real materials is described, as are methods of detection in modern thermal imaging systems. Typical specifications and features of commercially available thermal imaging systems are described, and uses of thermal imaging are discussed. At the Savannah River Site (SRS), thermal imaging has been used extensively to measure the temperature of surface water that carries heat from the reactors to the Savannah River. Other uses at SRS have been surveying roof insulation and moisture, evaluating insulation of prototype glass melters at the TNX facility, and locating leaks in the Concentrate Transfer System. Future recommended programs include evaluating thermal imaging for general monitoring of plant facilities, especially electrical conduits, processes occurring at elevated temperature, and radioactive storage areas that generate significant amounts of waste heat. Research on the resistance weld techniques used in tritium reservoir handling (pinch welding and reclamation welding) may profit from high speed thermal image monitoring of heat generated during welding, and other Process Development activities may also benefit from high-speed thermal image monitoring. 12 refs., 1 fig.

Photograph used for a newspaper owned by the Oklahoma Publishing Company. Caption: "The American Morgan Horse Institute, President Fred Dorwart."

Photograph used for a story in the Daily Oklahoman newspaper. Caption: "The quality of U.S. health care is excellent, but lack of access to it "is probable the greatest incrimination of our present system," says the immediate past president of the American Medical Association."

An introduction to methods of digital image analysis is presented. Modern commercially available digital image analysis systems are described, along with applications that may be useful to programs at the Savannah River Site (SRS). Systems to aid inspection of tritium reservoir fill stems and a system to enhance inspection of radiographs of pinch weld closures of tritium reservoirs have already been developed at SRS. Modern digital analysis systems based on personal computers have been and are being procured for use in Savannah River Laboratory (SRL) programs, and are finding immediate application in several programs requiring quantitative metallography. It is argued that x-ray computed tomographic imaging, digitally-enhanced ultrasonic testing and acoustic microscopy are three techniques that would enhance not only the research and development efforts at SRL, but also may be applicable in production (for example, in pinch and reclamation welding of tritium reservoirs, and in reactor component inspection) as quality assurance and documentation tools. 21 refs.

Photograph used for a newspaper owned by the Oklahoma Publishing Company. Caption: "Tom Jones"

Photograph used for a newspaper owned by the Oklahoma Publishing Company.

Photograph used for a newspaper owned by the Oklahoma Publishing Company. Caption: "Fred Dorwart ( American Morgan Horse Institute President )"

Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Yukon assistant fire chief Eddie Hogan wants kids to believe firemen are a friendly sort."

Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Jacque Wright, Susie Blinn and Diane Kenney, from left, display some of the items which will be offered for sale at the Pi Beta Phi country Fair Oct. 17 at 4501 N. Coltrane Road in the Forest Park Neighborhood."

B-roll video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story. This story aired at 6pm.

B-roll video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story. This story aired at 5pm.

B-roll video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story. This story aired at 10pm.

Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story. This story aired at 5pm.

B-roll video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story. This story aired at 5pm.

An article written by Julie Gilberto for the Fort Worth Star-Telegram about the UNT led North Texas Regional Institute for Educators on the Visual Arts that aids teachers in combining art and regular coursework to better students' education. The piece features a look at students in a classroom where this idea is already being implemented.

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; Construction of conflict of interest provisions of article 4413 (32j), V.T.C.S., which creates the Department of Information Resources (RQ-1802)

Weekly newspaper from Jacksboro, Texas that includes local, state, and national news along with extensive advertising.

Daily newspaper from Baytown, Texas that includes local, state, and national news along with advertising.

Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Two members of Amcare's executive staff also resigned: Larry Willis, acting executive director, and Vonda Richardson, director of finance and marketing."

Photograph of the Allen-Paul House in Houston, Texas.

Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Visitors during Open House on Monday at the Lazy E. Training Center, a 600-acre horse training facility southeast of Guthrie, got a close-up view of the new racetrack with its Equittrack surface (above) and horse breaking arena (foreground, below ) situated near one of the new 40-stall race barns."

Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Visitors during Open House on Monday at the Lazy E. Training Center, a 600-acre horse training facility southeast of Guthrie, got a close-up view of the new racetrack with its Equittrack surface (above) and horse breaking arena (foreground, below ) situated near one of the new 40-stall race barns."

Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Surrounded by quilts, quilt blocks and pattern books, Patty Russell demonstrates free-hand machine quilting."