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Measurements of electron excitation and recombination for Ne-like Ba/sup 46 +/ (open access)

Measurements of electron excitation and recombination for Ne-like Ba/sup 46 +/

A new facility at Lawrence Livermore National Laboratory has been used to obtain measurements for electron-impact excitation, dielectronic recombination and radiative recombination for the neon-like Ba/sup 46 +/ ion. The experimental technique consists of trapping highly charged ions inside the space charge of an electron beam and measuring their x-ray emission spectra.
Date: July 1, 1987
Creator: Marrs, R. E.; Levine, M. A.; Knapp, D. A. & Henderson, J. R.
System: The UNT Digital Library
Close Collisions Between Light Nuclei: Orbiting and Fusion (open access)

Close Collisions Between Light Nuclei: Orbiting and Fusion

Our data have demonstrated that in close collisions the two nuclei first form a rotating dinuclear complex (DNC) which can break up into two complex fragments (Orbiting) or evolve into a compound nucleus. The binary fragment yield was found to be significant in contradiction with earlier views which held that whenever nucleus-nucleus capture occurs fusion is a certainty. The time duration of the dinuclear stage and the nature of its evolution into a compound nucleus were studied and a model which describes these processes will be presented. 25 refs., 14 figs.
Date: January 1, 1987
Creator: Shapira, D.; Shivakumar, B.; Harmon, B. A. & Ayik, S.
System: The UNT Digital Library
Switching devices used in the Lethality Test System (open access)

Switching devices used in the Lethality Test System

The Lethality Test System (LTS) is an experiment which will utilize a light gas gun-railgun combination to accelerate projectiles for impact studies. The power supply for the railgun consists of an 80 MJ (kinetic) generator-flywheel array used to charge the primary windings of three cryogenic pulse transformers. The secondary windings of these transformers will supply up to 50 MJ of electrical energy to the railgun. A number of special switching devices will be required to cause energy transfer and compression. This paper describes the design and testing of these switching devices.
Date: January 1, 1987
Creator: Parsons, W.M.; Ford, R.D.; Wildi, P. & Chowdhuri, P.
System: The UNT Digital Library
Infrared and far-infrared laser development for plasma diagnostics at Oak Ridge National Laboratory (open access)

Infrared and far-infrared laser development for plasma diagnostics at Oak Ridge National Laboratory

Three IR and FIR based diagnostics will be developed ann installed on the Advanced Toroidal Facility (ATF) at ORNL. An interferometer operating at 119 mu m will measure plasma density along 14 vertical chords across the plasma cross-section. A small-angle Thomson scattering experiment using a 10.6-mu m pulsed laser will determine the feasibility of measuring alpha particle distribution in a burning plasma. Plans are being developed for installing an FIR-based scattering experiment on ATF to measure density fluctuations. 4 refs., 4 figs.
Date: January 1, 1987
Creator: Casson, W. H.; Bennett, C. A.; Fletcher, L. K.; Hunter, H. T.; Hutchinson, D. P.; Lee, J. et al.
System: The UNT Digital Library
For the Record, Spring 1987 (open access)

For the Record, Spring 1987

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 October 29, 1986.
Date: Spring 1987
Creator: Oklahoma Historical Society
System: The Gateway to Oklahoma History
For the Record, Summer 1987 (open access)

For the Record, Summer 1987

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 January 28, 1987.
Date: Summer 1987
Creator: Oklahoma Historical Society
System: The Gateway to Oklahoma History
For the Record, Fall 1987 (open access)

For the Record, Fall 1987

For the Record section including the minutes of the annual meeting of the Oklahoma Historical Society and the minutes of the quarterly board meeting of the Board of Directors of the OHS that were both held on April 23, 1987.
Date: Autumn 1987
Creator: Oklahoma Historical Society
System: The Gateway to Oklahoma History
For the Record, Winter 1987-88 (open access)

For the Record, Winter 1987-88

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 29, 1987.
Date: Winter 1987
Creator: Oklahoma Historical Society
System: The Gateway to Oklahoma History
Notes and Documents, Spring 1987 (open access)

Notes and Documents, Spring 1987

Notes and Documents column including a pamphlet found among the keepsakes of Oscar Noble relating the history of the 358th Infantry and their accomplishments during World War I.
Date: Spring 1987
Creator: E. B. Houser
System: The Gateway to Oklahoma History
Notes and Documents, Fall 1987 (open access)

Notes and Documents, Fall 1987

Notes and Documents column including a document highlighting the Indian-Pioneer History Collection located at the Archives and Manuscripts Division of the Oklahoma Historical Society. William D. Welge provides historical context to the enactment of the Works Progress Administration Project and its process.
Date: Autumn 1987
Creator: Welge, William D.
System: The Gateway to Oklahoma History