This report is the first part of a comprehensive summary of the literature on hydrogen isotope permeability through materials that do not readily form hydrides. While we mainly focus on pure metals with low permeabilities because of their importance to tritium containment, we also give data on higher-permeability materials such as iron, nickel, steels, and glasses.

Photograph used for a story in the Daily Oklahoman newspaper. Caption: "In top photo with Earl Johnson (left) and Spencer Tillman (right), Oklahoma's Marcus Dupree steps it off during running drills"

Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Cathy and Doyle Godfery attend Firm Night."

Photograph used for a story in the Daily Oklahoman newspaper. Caption: "For OU's Marcus Dupree, success has a simple formula."

Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Trouble in Soonerland ? Apparently not as running back Marcus Dupree and coach Barry Switzer pose happily on Monday."

Photograph used for a story in the Daily Oklahoman newspaper. Caption: "In top photo with Earl Johnson (left) and Spencer Tillman (right), Oklahoma's Marcus Dupree steps it off during running drills"

Photograph used for a story in the Daily Oklahoman newspaper. Caption: "In their home near Okeene Connie Jo, Tammie and Beverly Bierig organize fair ribbons won by Tammie during a three-year period."

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

Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Vicky Hollen, left, visits with Donna Brown and Majorie Tulle."

Photograph used for a story in the Oklahoma Times newspaper.

The Sodium Reactor Experiment (SRE) located at the Rockwell International Field Laboratories northwest of Los Angeles was developed to demonstrate a sodium-cooled, graphite-moderated reactor for civilian use. The reactor reached full power in May 1958 and provided 37 GWh to the Southern California Edison Company grid before it was shut down in 1967. Decommissioning of the SRE began in 1974 with the objective of removing all significant radioactivity from the site and releasing the facility for unrestricted use. Planning documentation was prepared to describe in detail the equipment and techniques development and the decommissioning work scope. A plasma-arc manipulator was developed for remotely dissecting the highly radioactive reactor vessels. Other important developments included techniques for using explosives to cut reactor vessel internal piping, clamps, and brackets; decontaminating porous concrete surfaces; and disposing of massive equipment and structures. The documentation defined the decommissioning in an SRE dismantling plan, in activity requirements for elements of the decommissioning work scope, and in detailed procedures for each major task.

Stress distributions have been calculated for a creep law predicting a higher rate of plastic deformation than modeled in earlier studies. The expected reduction in stresses is obtained, although quantitative results are not yet available because of difficulties in obtaining convergent solutions. Improved schemes for calculating growth system temperature distributions are being evaluated in a new subtask started at MIT. Other work in temperature field modeling has examined the possibility of using horizontal temperature gradients to influence stress distributions in ribbon. The defect structure of 10 cm wide ribbon grown in the cartridge system has been examined. A new feature is identified from an examination of cross-sectional micrographs. It consists of high density dislocation bands extending through the ribbon thickness. A four-point bending apparatus has been constructed for high temperature (greater than or equal to 1000/sup 0/C) study of the creep response of silicon, and will be used to generate defects for comparison with as-grown defects in ribbon. Another subtask has been started in collaboration with the University of Illinois which will examine the feasibility of laser interferometric techniques for sheet residual stress distribution measurement. The mathematical formalism for calculating residual stress from changes in surface topology caused by an …

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

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.

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

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

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

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

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

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

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

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

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