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Large-scale cryopumping for controlled fusion
Vacuum pumping by freezing out or otherwise immobilizing the pumped gas is an old concept. In several plasma physics experiments for controlled fusion research, cryopumping has been used to provide clean, ultrahigh vacua. Present day fusion research devices, which rely almost universally upon neutral beams for heating, are high gas throughput systems, the pumping of which is best accomplished by cryopumping in the high mass-flow, moderate-to-high vacuum regime. Cryopumping systems have been developed for neutral beam injection systems on several fusion experiments (HVTS, TFTR) and are being developed for the overall pumping of a large, high-throughput mirror containment experiment (MFTF). In operation, these large cryopumps will require periodic defrosting, some schemes for which are discussed, along with other operational considerations. The development of cryopumps for fusion reactors is begun with the TFTR and MFTF systems. Likely paths for necessary further development for power-producing reactors are also discussed.
Date:
July 25, 1977
Creator:
Pittenger, L. C.
Object Type:
Article
System:
The UNT Digital Library
Atomic data for controlled fusion research
Presented is an evaluated graphical and tabular compilation of atomic and molecular cross sections of interest to controlled thermonuclear research. The cross sections are tabulated and graphed as a function of energy for collision processes involving heavy particles, electrons, and photons with atoms and ions. Also included are sections on data for particle penetration through macroscopic matter, particle transport properties, particle interactions with surfaces, and pertinent charged particle nuclear cross sections and reaction rates. In most cases estimates have been made of the data accuracy.
Date:
February 1, 1977
Creator:
Barnett, C. F.; Ray, J. A.; Ricci, E.; Wilker, M. I.; McDaniel, E. W.; Thomas, E. W. et al.
Object Type:
Report
System:
The UNT Digital Library
Developing Maintainability in Controlled Thermonuclear Reactors. Progress Report, April 1, 1977--May 31, 1977
During the period 1 April through 31 May 1977 the study has developed three baseline time estimates for replacement of the first wall and blanket of the UWMAK-I, UWMAK-III and the General Atomic Demonstration Power Reactor (GA-DPR) conceptual design approaches. These estimates are for replacement of a complete reactor sector in UWMAK-I, the ''A'' module and one-half of the remaining modules in one sector of the UWMAK-III, and the first two modules in the wall of the GA-DPR. The total time for these minimum scope replacement estimates are 1133 hours, 687 hours and 848 hours, respectively, without productivity or other dilution factors. Maintenance equipment conceptual designs have been partially developed and equipment lists generated for each baseline concept maintenance approach. These time estimates and maintenance techniques will be reviewed by experts in the field during the next reporting period. In addition, development of the necessary cost code for the GA-DPR has been initiated for integration into the TOCOMO code and later use in the planned trade studies.
Date:
June 1, 1977
Creator:
Fuller, G. M. & Zahn, H. S.
Object Type:
Report
System:
The UNT Digital Library
Fixed bed gasification for production of industrial fuel gas
This report summarizes the results of technical and economic evaluations of six commercially available, fixed-bed coal gasification processes for the production of industrial fuel gas. The study was performed for DOE and is intended to assist industrial companies in exploring the feasibility of producing gaseous fuels for both retrofit and new industrial plant situations. The report includes a technical analysis of the physical configuration, performance capabilities, and commercial experiments to-date for both air-blown and oxygen-blown fixed bed gasifiers. The product gas from these gasifiers is analyzed economically for three different degrees of cleanliness: (1) hot raw gas, (2) dust-, tar-, and oil-free gas, and (3) dust-, tar-, oil-free and desulfurized gas. The evaluations indicate that low-Btu gases produced from fixed bed gasifiers constitute one of the most logical short-term solutions for helping ease the shortage of natural gas for industrial fuel applications because the technology is well-proven and has been utilized on a commercial scale for several decades both in this country and overseas; time from initiation of design to commercial operation is about two years; the technology is not complicated to construct, operate, or maintain; and a reliable supply of product gas can be generated on-site. The advantages and …
Date:
October 1, 1977
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Potential of Arid Zone Vegetation as a Source of Substrates
Three aspects of the potential of vegetation in arid zones as a source of substrates are discussed. The first includes the limitations on efficiency of conversion of solar energy to the stored chemical energy of biomass in green plants, and the subsequent biochemical pathways of carbon dioxide fixation and biosynthesis. Second is the potential of plants endogenous to arid zones. Finally, the use of covered agriculture or controlled environmental agriculture (CEA) is considered both in its present form and in terms of possible extenion to the large scale production of stable crops. (JGB)
Date:
November 1, 1977
Creator:
Bassham, J. A.
Object Type:
Article
System:
The UNT Digital Library
Instruction manual for a microwave ammonia monitor
The microwave ammonia monitor is a self contained (the vacuum pump is external) microwave rotational spectrometer that selectively detects and monitors ammonia vapor in air. A solid-state oscillator is used as the microwave source and a microwave cavity made from waveguide provides a chamber for the sample analysis. The air sample is continuously flowed through the waveguide cavity so that changes in the trace concentration of ammonia in air can be determined. The principle of operation of the microwave ammonia monitor is based on the absorption of microwave radiation by a vibration-rotation quantum transition of the ammonia molecule. Ammonia absorbs microwave radiation in a very narrow frequency range with its peak at 23,870.18 MHz. The microwave source is electronically controlled to oscillate only at this frequency and to provide a very stable output power. Thus, even a very small amount of microwave power that is absorbed by the ammonia gas is detectable and no other gas in the air sample is known to absorb any microwave radiation within the frequency output band of the oscillator. The specifications, operation, and maintenance procedures are described. Also a parts list and engineering drawings are included. (WHK)
Date:
June 13, 1977
Creator:
Hrubesh, Lawrence W.
Object Type:
Report
System:
The UNT Digital Library
Fear response of rape victims
The present investigation sough to explore the psychological responses of rape victims. A review of pertinent literature suggested a primary reaction of women to rape was fear, but the absence of controlled research and standardized observations limited the generalizability of these findings. A triparate interpretation of fear -- with autonomic, self-report, and avoidance behavior components -- was proposed. In addition, the research attempted to document negative changes in self-concept and feelings of powerlessness resultant from the rape experience.
Date:
August 1977
Creator:
Veronen, Lois J.
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Gravity and ground magnetic surveys of the Thermo Hot Springs KGRA region, Beaver County, Utah
During the period June to September 1976, gravity and ground magnetic surveys were made in the Thermo Hot Springs KGRA region which is located southwest of the town of Milford, Beaver County, Utah. The regional surveys comprised 273 new gravity and magnetic stations and incorporated 104 previous gravity stations over an area of approximately 620 km{sup 2}. The detailed surveys consisted of 9 east-west profiles in the immediate vicinity of the Thermo Hot Springs KGRA. The gravity data were reduced and are presented as terrain-corrected Bouguer gravity anomaly maps. Terrain corrections were made to a distance of 18.8 km. The regional gravity map shows the following features: (1) a large north-south trend with total relief of 5 mgal extending through the central portion of the study area; (2) an east-west trend with relief of about 7-8 mgal south of the Star Range and Shauntie Hills; (3) a north-south trend with 5 mgal relief east of Blue Mountain; and (4) a broad low of approximately 5 mgal closure southwest of the Shauntie Hills. The trends are probably caused by major faults and the gravity low is probably caused by the southern end of the Wah Wah Valley graben. The detailed gravity …
Date:
August 1, 1977
Creator:
Sawyer, Robert F. & Cook, Kenneth L.
Object Type:
Report
System:
The UNT Digital Library
[Commencement Program for Harvard University, June 16, 1977]
Commencement program for Harvard University including a list of all recipients of degrees in 1977, broken down by college and degree type. Also included are "Graduates Admitted Since the Last Commencement."
Date:
June 1977
Creator:
Harvard University
Object Type:
Book
System:
The Portal to Texas History
National Waste Terminal Storage Program: planning and control plan. Volume II. Plan description
Objective of the NWTS program planning and control plan is to provide the information necessary for timely and effective OWI management decisions. Purpose is to describe the concepts and techniques that will be utilized by OWI to establish structured, completely planned and controlled technical, cost, and schedule NWTS baselines from which performance or progress can be accurately measured.
Date:
May 1, 1977
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Coulometer operator's manual
The coulometer control system automates the titration of uranium and plutonium as performed by the CMB-1 group. The system consists of a printer, microcontroller, and coulometer, all of which are controlled by an algorithm stored in the microcontroller read-only memory. This manual describes the titration procedure using the coulometer control system, its theory and maintenance.
Date:
July 1, 1977
Creator:
Criscuolo, A. L.
Object Type:
Report
System:
The UNT Digital Library
National Waste Terminal Storage Program: configuration management plan. Volume II. Plan description
Purpose of the Configuration Management Plan is to provide the management discipline through which the integrity and continuity of program cost and schedule trade-off decisions which are made concerning the site selections and facilities performance, producibility, operability and supportability are recorded, communicated, and controlled by the Office of Waste Isolation.
Date:
May 1, 1977
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Aeromonas hydrophila as an agent of infection in alligators. Phase I, final report. Progress report, September 1, 1976--September 30, 1977, Part I
Experimental alligators were exposed to various concentrations of young, washed cells of Aeromonas hydrophila under controlled conditions. Responses of all alligators were monitored on the basis of: observations of external lesions; immunoglobulin production; blood chemistry and hematology; bacteriology, parasitology, and pathology of internal organs, skeletal muscle and external lesions at necropsy. The findings are summarized.
Date:
January 1, 1977
Creator:
Gorden, R. W. & Esch, G. W.
Object Type:
Report
System:
The UNT Digital Library
Minutes of the fifth meeting of the centers for the analysis of thermal-mechanical energy conversion concepts
The following are included: agenda, list of participants, executive summary, and approved minutes. The appendices include the figures for some of the discussions at the meeting and drafts of contributions to the Sourcebook on the Production of Electricity from Geothermal Energy. (MHR)
Date:
May 1, 1977
Creator:
DiPippo, R.
Object Type:
Report
System:
The UNT Digital Library
Development, characterization, and evaluation of materials for open cycle MHD. Quarterly report, October--December 1976
The objectives of this program are to develop, test, characterize, and evaluate materials for open-cycle, coal-fired MHD power generators. The specific immediate goals emphasize electrode and insulator materials, including: (1) the testing and evaluation of the enhanced effects of alkali seed on materials in a dc electric field; (2) the development and testing of improved electrodes and insulators with controlled microstructures, compositions and properties; and (3) the characterization and evaluation of materials relating to both the US MHD Program and the US-USSR Cooperative Program for MHD power genereators. The scope of this program encompasses the following areas: (1) reproducible laboratory testing of both ceramic and metal electrode materials and insulator materials in alkali seed/slag under dc electric current and voltages as functions of temperature, seed/slag, and composition; (2) development and fabrication of electrodes, insulators, and other related materials with controlled electrical, chemical, and physical properties, including evaluation in laboratory tests in US MHD test facilities and as part of the US-USSR testing program; and (3) characterization and evaluation of materials tested under the US-USSR and the US MHD programs include the measurement and analysis of structural, chemical, and thermophysical properties of electrodes, insulators, slag, and other related materials before and …
Date:
July 1, 1977
Creator:
Bates, J. L.; Bunnell, L. R.; Daniel, J. L.; Marchant, D. D. & Mellinger, G. B.
Object Type:
Report
System:
The UNT Digital Library
For the Record, Winter 1977-78
For the Record section including the minutes of the quarterly board meeting of the Board of Directors of the Oklahoma Historical Society that was held on July 28, 1977. It also includes a gift list for the second quarter of 1977 and lists of new annual and new life members of the OHS.
Date:
Winter 1977
Creator:
Oklahoma Historical Society
Object Type:
Article
System:
The Gateway to Oklahoma History
Philosophical Society of Texas, Proceedings of the Annual Meeting: 1976
Proceedings of the annual meeting of the Philosophical Society of Texas held on December 10, 11, 1976, including a list of attendees, text of addresses, changes to membership, and biographical information about members who have passed. The effects of politics on higher education was the topic discussed.
Date:
1977
Creator:
Philosophical Society of Texas
Object Type:
Book
System:
The Portal to Texas History
Clips/Briefs, Volume 5, Number 5, September 1977
Periodic compilation of newspaper articles and other information related to coastal or marine issues, with a summary list.
Date:
September 30, 1977
Creator:
Texas Coastal and Marine Council
Object Type:
Journal/Magazine/Newsletter
System:
The Portal to Texas History
Fusion Energy Division research, development, and demonstration needs
The major Research, Development, and Demonstration (R, D, and D) needs for EPR are developed from the technical evaluation of the September 1975 ORNL EPR Reference Design (ORNL/TM-5042) and are presented in a common format. Evaluation was concentrated on the key tokamak features, and only slight consideration was given to peripheral items. Although the list was developed specifically for EPR, it would apply to and be refined during the design of an intermediate system. Each of the R, D, and D needs has been categorized by its program status/priority assignment and from this process, a number of observations can be made.
Date:
January 1, 1977
Creator:
Roberts, M.; McAlees, D. G.; Flanagan, C. A.; Lue, J. W. & Shannon, T. E.
Object Type:
Report
System:
The UNT Digital Library
High Resolution Spectrometer (HRS) Particle-Identification System
The functions of the particle-identification system (PIDS) designed for the High Resolution Spectrometer facility (HRS) at LAMPF are described, together with the mechanical layout, counter hardware, and associated electronics. The system was designed for easy use and to be applicable to currently proposed experiments at HRS. The several strobe signals that can be generated correspond to different event types or characteristics, and logic configuration and timing can be remotely controlled by computer. Concepts of discrete pattern recognition and multidimensional, analog pulse discrimination are used to distinguish between different event types.
Date:
August 1, 1977
Creator:
Pratt, J. C.; Spencer, J. E. & Whitten, C. A.
Object Type:
Report
System:
The UNT Digital Library
Design considerations for incineration of transuranic-contaminated solid wastes
The Los Alamos Scientific Laboratory has established a development program to evaluate alternate production-level (100-200 lb/hr throughput) volume reduction processes for transuranic-contaminated solid waste. The first process selected for installation and study is based on controlled-air incineration. Design considerations leading to selection of feed preparation, incineration, residue removal, and off-gas cleanup components and their respective radioactive containment provisions will be presented.
Date:
January 1, 1977
Creator:
Koenig, R. A.
Object Type:
Article
System:
The UNT Digital Library
Experimental and analytical research on the aerodynamics of wind driven turbines. Final report
This aerodynamic research program was aimed at providing a reliable, comprehensive data base on a series of wind turbine models covering a broad range of the prime aerodynamic and geometric variables. Such data obtained under controlled laboratory conditions on turbines designed by the same method, of the same size, and tested in the same wind tunnel had not been available in the literature. Moreover, this research program was further aimed at providing a basis for evaluating the adequacy of existing wind turbine aerodynamic design and performance methodology, for assessing the potential of recent advanced theories and for providing a basis for further method development and refinement.
Date:
December 1, 1977
Creator:
Rohrbach, C.; Wainauski, H. & Worobel, R.
Object Type:
Report
System:
The UNT Digital Library
Building 431 fire tests
An extensive discussion of considerations for fire protection in the LLL mirror fusion test facility (MFTF) is presented. Because of the large volume and high bays of the building, sufficient data on fire detection is unavailable. Results of fire detection tests using controlled fire sources in the building are presented. Extensive data concerning the behavior of the building atmosphere are included. Candidate fire detection instrumentation and extinguishing systems for use in the building are briefly reviewed. (RME)
Date:
October 24, 1977
Creator:
Alvares, N. J.; Beason, D. G.; Ford, H. W. & Magee, M. W.
Object Type:
Report
System:
The UNT Digital Library
Pacific Northwest Laboratory annual report for 1976 to the ERDA Assistant Administrator for Environment and Safety. Part 2. Ecological sciences
Separate abstracts were prepared for 15 sections of this report on environmental effects of energy sources. A list is included of 72 publications during the time covered by this report.
Date:
May 1, 1977
Creator:
Vaughan, B. E.
Object Type:
Report
System:
The UNT Digital Library