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Fusion power demonstration - a baseline for the mirror engineering test reactor
Developing a definition of an engineering test reactor (ETR) is a current goal of the Office of Fusion Energy (OFE). As a baseline for the mirror ETR, the Fusion Power Demonstration (FPD) concept has been pursued at Lawrence Livermore National Laboratory (LLNL) in cooperation with Grumman Aerospace, TRW, and the Idaho National Engineering Laboratory. Envisioned as an intermediate step to fusion power applications, the FPD would achieve DT ignition in the central cell, after which blankets and power conversion would be added to produce net power. To achieve ignition, a minimum central cell length of 67.5 m is needed to supply the ion and alpha particles radial drift pumping losses in the transition region. The resulting fusion power is 360 MW. Low electron-cyclotron heating power of 12 MW, ion-cyclotron heating of 2.5 MW, and a sloshing ion beam power of 1.0 MW result in a net plasma Q of 22. A primary technological challenge is the 24-T, 45-cm bore choke coil, comprising a copper hybrid insert within a 15 to 18 T superconducting coil.
Date:
December 2, 1983
Creator:
Henning, C. D.; Logan, B. G.; Neef, W. S.; Dorn, D.; Clarkson, I. R.; Carpenter, T. et al.
Object Type:
Article
System:
The UNT Digital Library
Radiation-induced electrical breakdown of helium in fusion reactor superconducting magnet systems
A comprehensive theoretical study has been performed on the reduction of the electrical breakdown potential of liquid and gaseous helium under neutron and gamma radiation. Extension of the conventional Townsend breakdown theory indicates that radiation fields at the superconducting magnets of a typical fusion reactor are potentially capable of significantly reducing currently established (i.e., unirradiated) helium breakdown voltages. Emphasis is given to the implications of these results including future deployment choices of magnet cryogenic methods (e.g., pool-boiling versus forced-flow), the possible impact on magnet shielding requirements and the analogous situation for radiation-induced electrical breakdown in fusion RF transmission systems.
Date:
December 2, 1983
Creator:
Perkins, L.J.
Object Type:
Article
System:
The UNT Digital Library
Calculation of density profiles in tandem mirrors fueled by pellets
We have modified the LLNL radial transport code TMT to model reactor regime plasmas, fueled by pellets. The source profiles arising from pellet fueling are obtained from existing pellet ablation models. Because inward radial diffusion due to inverted profiles must compete with trapping of central cell ions in the transition region for tandem mirrors, pellets must penetrate fairly far into the plasma. In fact, based on our radial calculations, a pellet with a velocity of 10 km/sec cannot sustain the central flux tubes; a velocity more like 100 km/sec will be necessary. We also find that the central cell radial diffusion must exceed classical by about a factor of 100.
Date:
December 2, 1983
Creator:
Campbell, R. B. & Gilmore, J. M.
Object Type:
Article
System:
The UNT Digital Library
Magnetic fusion energy annual report, July 1975--September 1976
Supporting research activities continued to provide the technical basis for future mirror-confinement experiments. The industrial development of a high-current, high-field, high-current-density Nb/sub 3/Sn conductor was the main goal of the superconducting magnet program. Beam direct conversion was being developed as a means of raising the efficiency of neutral-beam production, and plasma direct conversion was shown to work as predicted. Conceptual designs were completed for various types of power reactors. The neutral-beam program progressed in three areas: experimental work, facility construction, and conceptual design. Experiments on the 14-MeV Rotating Target Neutron Source (RTNS-II) included participation by experimenters from many different institutions. Methods for processing tritium-contaminated wastes were pursued, as were studies of tritiated methane in stainless-steel vessels, the control of tritium in mirror fusion reactors, and the development of titanium tritide targets for the RTNS. The report period witnessed a rapid maturation in ability to describe theoretically the behavior of ion-cyclotron noise in the 2XIIB and the influence of that noise on the confined plasma. The high beta values achieved in 2XIIB prompted much theoretical analysis of the properties of high-beta equilibria and stability, including those of a field-reversed state. Excellent progress was made on the development of computer codes applicable …
Date:
December 2, 1976
Creator:
Harrison, M.A.; McGregor, C.K. & Gottlieb, L. (eds.)
Object Type:
Report
System:
The UNT Digital Library
[News Clip: Grapevine]
Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date:
December 2, 1993, 5:00 p.m.
Creator:
KXAS-TV (Television station : Fort Worth, Tex.)
Object Type:
Video
System:
The UNT Digital Library
Kilowatt Isotope Power System: test procedure for the ground demonstration system. 77-KIPS-63
This test procedure provides a detailed description of the verification methods which shall be used during development, performance and endurance testing to be conducted on the Kilowatt Isotope Power System (KIPS) Development Ground Demonstration Systems, P/N's 722487 and 723829 and Ground Demonstration System (GDS), P/N 725100. The objectives of this testing are to demonstrate system performance in a controlled environment; to verify results of performance predictions; to verify results compiled by component testing performed per Sundstrand Test Procedures and Test Specifications; and to isolate full scale operational characteristics for evaluation.
Date:
December 2, 1977
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Tandem mirror fusion research
The tandem mirror program has evolved considerably in the last decade. Of significance is the viable reactor concept embodied in the MARS design. An aggressive experimental program, culminating in the operation of MFTF-B in late 1986, will provide a firm basis for refining the MARS design as necessary for constructing a reactor prototype in the 1990s.
Date:
December 2, 1983
Creator:
Baldwin, D.E.
Object Type:
Article
System:
The UNT Digital Library
The Mangum Star. (Mangum, Okla.), Vol. 22, No. 23, Ed. 1 Thursday, December 2, 1909
Weekly newspaper from Mangum, Oklahoma that includes local, state, and national news along with advertising.
Date:
December 2, 1909
Creator:
Farris, Giles W.
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Mangum Star. (Mangum, Okla. Terr.), Vol. 17, No. 25, Ed. 1 Friday, December 2, 1904
Weekly newspaper from Mangum, Oklahoma that includes local, territorial, and national news along with advertising.
Date:
December 2, 1904
Creator:
Echols, R. C. & Townsend, G. B.
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Greer County Democrat (Mangum, Okla.), Vol. 26, No. 12, Ed. 1 Thursday, December 2, 1915
Weekly newspaper from Mangum, Oklahoma that includes local, state, and national news along with advertising.
Date:
December 2, 1915
Creator:
Watt, W. O.
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Oklahoma Democrat. (Altus, Okla.), Vol. 3, No. 35, Ed. 1 Thursday, December 2, 1909
Weekly newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
December 2, 1909
Creator:
Ruthruff, C. E.
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Oklahoma Democrat (Altus, Okla.), Vol. 8, No. 39, Ed. 1 Thursday, December 2, 1915
Weekly newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
December 2, 1915
Creator:
Powell, Eugene
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Kiowa Breeze. (Kiowa, Indian Terr.), Vol. 3, No. 37, Ed. 1 Friday, December 2, 1904
Weekly newspaper from Kiowa, Indian Territory that includes local, territorial, and national news along with advertising.
Date:
December 2, 1904
Creator:
Coak, George J. & Coak, Mrs. George J.
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Keystone XL Pipeline Project: Key Issues
This report describes the Keystone XL pipeline proposal and the process required for federal approval. It summarizes key arguments for and against the pipeline put forth by the pipeline's developers, federal agencies, environmental groups, and other stakeholders. The report discusses potential consistency challenges faced by the State Department in reviewing the pipeline application given its recent prior approvals of similar pipeline projects. Finally, the report reviews the constitutional basis for the State Department's authority to issue a Presidential Permit, and opponents' possible challenges to this authority.
Date:
December 2, 2013
Creator:
Parfomak, Paul W.; Pirog, Robert; Luther, Linda & Vann, Adam
Object Type:
Report
System:
The UNT Digital Library
Burma's Political Prisoners and U.S. Sanctions
This report discusses the release of Burma's political prisoners and the role that plays in U.S. policy and Burma's political future.
Date:
December 2, 2013
Creator:
Martin, Michael F.
Object Type:
Report
System:
The UNT Digital Library
Federal Public Transportation Program: In Brief
This report provides an introduction to the Federal Public Transportation Program (FPTP). Includes a brief background of public transportation as well as FPTP's funding, expenses, and structure.
Date:
December 2, 2013
Creator:
Mallett, William J.
Object Type:
Report
System:
The UNT Digital Library
The Altus Weekly News. (Altus, Okla.), Vol. 16, No. 40, Ed. 1 Thursday, December 2, 1915
Weekly newspaper from Altus, Oklahoma that includes local, county, state, and national news along with advertising.
Date:
December 2, 1915
Creator:
Orr, J. P.
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Guymon Herald. (Guymon, Okla.), Vol. 30, No. 40, Ed. 1 Thursday, December 2, 1920
Weekly newspaper from Guymon, Oklahoma that includes local, state, and national news along with advertising.
Date:
December 2, 1920
Creator:
unknown
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Crowder City Guardian (Crowder, Indianola, and Canadian, Oklahoma), Vol. 11, No. 14, Ed. 1 Thursday, December 2, 1915
Weekly newspaper from Crowder, Indianola, and Canadian, Oklahoma that includes local, state, and national news along with advertising.
Date:
December 2, 1915
Creator:
Jenkins, O. D.
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Tyrone Observer. (Tyrone, Okla.), Vol. 1, No. 32, Ed. 1 Friday, December 2, 1904
Weekly newspaper from Tyrone, Oklahoma Territory that includes local, territorial, and national news along with advertising.
Date:
December 2, 1904
Creator:
Hill, H. W.
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Sentinel Leader. (Sentinel, Okla.), Vol. 7, No. 18, Ed. 1 Friday, December 2, 1910
Weekly newspaper from Sentinel, Oklahoma that includes local, state, and national news along with advertising.
Date:
December 2, 1910
Creator:
Inglish, G. L.
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Tyrone Observer. (Tyrone, Okla.), Vol. 6, No. 17, Ed. 1 Thursday, December 2, 1909
Weekly newspaper from Tyrone, Oklahoma that includes local, state, and national news along with advertising.
Date:
December 2, 1909
Creator:
unknown
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Cushing Independent. (Cushing, Okla.), Vol. 9, No. 1, Ed. 1 Thursday, December 2, 1909
Weekly newspaper from Cushing, Oklahoma that includes local, state, and national news along with advertising.
Date:
December 2, 1909
Creator:
Holland, Al. H.
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Kiowa Sentinel. (Kiowa, Indian Terr.), Vol. 1, No. 49, Ed. 1 Friday, December 2, 1904
Weekly newspaper from Kiowa, Indian Territory that includes local, territorial, and national news along with advertising.
Date:
December 2, 1904
Creator:
Vernon, John C.
Object Type:
Newspaper
System:
The Gateway to Oklahoma History