The main features and operating characteristics of the primary vacuum system of many of the presently operating tokamak devices are presented. Particular attention is paid to the methods used to condition and clean the vessel walls in situ. For the devices discussed, a combination of a high-temperature bakeout and/or discharge cleaning is employed. In addition, discussions of the vacuum systems and wall conditioning methods anticipated for the next generation of tokamaks are presented. Since this report was written during a limited time period, it should be considered as preliminary and is not intended to be a general review. Much of the information that is presented was obtained by private communication and there is no bibliography. This study was initiated to aid in the design of TFTR. As presently envisioned, the TFTR vacuum system and methods for wall conditioning are consistent with what is presently practiced.

Four one-million-gallon underground tanks will be constructed for safe and reliable containment and storage of high-level radioactive wastes. Transfer facilities and encased, insulated, and heat traced piping will provide transport connections to the existing evaporator-crystallizer and storage tank systems. Flushing facilities and associated utilities will be provided for tank farm operation. The tank, pumping, and ventilation equipment and controls will be provided with instrumentation and alarms. Instrumentation will monitor the waste and facilities to detect high temperatures, waste levels, radiation, and process leakages. Gaseous radioactive containment will be provided by the high efficiency ventilation filtration. The tank farm facilities will provide personnel radiation protection.

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

Photograph used for a story in the Oklahoma Times newspaper.

Photograph used for a story in the Oklahoma Times newspaper. Caption: "Janet Clayton, Westside Branch YMCA instructor, and 7-year-old Brad Mel, 7909 NW 27, demonstrate techniques to be used when Oklahoma City YMCA branch host "Learn to Swim Week" this month."

A description is given of the FFTF Document Control and Information Retrieval System. The system utilizes a mini-computer along with various microfilm equipment and is designed to accommodate an anticipated 50 million pages of text and 750,000 drawings. The system is simple, uncluttered, eliminates duplication, and provides quick retrievability of documents for all technical and administrative personnel.

Photograph used for a story in the Daily Oklahoman newspaper. Caption: "IT'S OVER AT LAST for Alma E. Johnson, Oklahoma City who like many other Oklahomans joined long lines of auto license tag buyers."

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

Photograph used for a story in the Daily Oklahoman newspaper. Caption: "The only way 200 Vietnamese refugee children being held in Denmark will ever see freedom will be through a massive effort by U.S. citizens, an Oklahoma City missionary who just returned from Denmark said Monday."

Photograph used for a story in the Oklahoma Times newspaper. Caption: "Dr. James Hammarsten, foreground, chairman of the department of medicine at the University of Oklahoma Health Sciences Center, began a series of training lectures this morning for about 135 Vietnamese doctors who are preparing for exams leading to licensing to practice."

Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Lon Gibson, 6-5 Bethany senior, goes up for easy score as OBU's Johnny Meador arrives too late."

Photograph used for a story in the Oklahoma Times newspaper. Caption: "Bethany Nazarene's Otis Garrison drives in for an easy lay-up ahead of Oklahoma Baptist's Johnny Meador."

Photograph used for a story in the Oklahoma Times newspaper. Caption: "OCU seniors John Powell, left and George Beatty watch another New Orleans shot hits its mark during last nights game."

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

An appropriate methodology was developed for conducting the mainline activity of the task--a comprehensive survey of near-term (1976--1985) applications for photovoltaic solar energy conversion--and a start was made on the implementation of the methodology. The main emphasis of the first quarter of effort on the task, however, was placed on a quick, preliminary study aimed at the early identification of several promising near-term applications that would make attractive demonstration projects. Four such applications were identified: (a) impressed current corrosion protection of gas well casings, (b) impressed current corrosion protection of gas and oil pipelines, (c) railroad grade crossing signals, and (d) navigation aid buoys. Estimates were made, in each case, of the size of the associated potential market for photovoltaic arrays and of the break-even array price (the array price at which photovoltaic solar energy conversion would be economically competitive with alternative power sources). The estimated market sizes were as high as 1.1 MW/sub pk//yr (in the case of corrosion protection of deep gas wells) and break-even costs ranged from $2/W/sub pk/ to more than $50/W/sub pk/. A start was made on the examination of central station missions for photovoltaic power plants using very high concentration (concentration ratio approx. 1000). …

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

Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Beautifying OKC's faade produced some not so pleasant sights Monday such as this one in the 1500 block of NW 1 as the "Super Trash Bash" began."

Photograph used for a story in the Oklahoma Times newspaper. Caption: "City workers use crane to remove trash."

Bilingual monthly newspaper from Houston, Texas, published for the local Chinese community, that includes local, state and national news along with advertising.

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Results obtained in the development of a commercial process for waste fixation, waste form characterization, alternative waste fixation processes, and systems safety evaluation are reported. (JSR)

Interviews were held with representatives of major plants and equipment manufacturers to obtain current information on operating experience with dry cooling towers in Europe. The report documents the objectives, background, and organizational details of the study, and presents an itemized account of contacts made to obtain information. Plant selection was based on a merit index involving thermal capacity and length of service. A questionnaire was used to organize operational data, when available, into nine major categories of experience. Information was also solicited concerning the use of codes and standards to ensure the achievement of cooling tower performance. Several plant operators provided finned-tube samples for metallographic analysis. Additionally, information on both operating experience and developing technology was supplied by European technical societies and research establishments. Information obtained from these contacts provides an updated and representative sample of European experience with dry cooling towers, which supplements some of the detailed reviews already available in the literature. In addition, the study presents categorized operating experience with installations which have not been reviewed so extensively, but nevertheless, have significant operational histories when ranked by the merit index. The contacts and interviews reported in the survey occurred between late March and October 1975. The study …

The stability of a periodic magnetic island structure was studied using the ideal MHD equations. An instability is found which describes the tendency toward coalescence of parallel currents in the neighboring islands. It is expected that this instability will proceed at a fast MHD rate as long as the forces driving the instability can overcome the stabilizing forces due to the compression of the magnetic field between the islands. Beyond that phase, resistivity is expected to dominate the tendency toward island coalescence. Island coalescence of this kind can explain why in the observation of tearing mode instabilities in tokamaks, only the modes with minimum values of m and n are seen.

A two-arm ..pi../sub ..mu../sub 2///beam monitor telescope provides one possible means of monitoring pion (P/sub ..pi../ less than 400 MeV/c) beam fluxes to better than 1 percent.