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Antares beam-alignment-system performance
The beam alignment system for the 24-beam-sector Antares CO/sub 2/ fusion laser automatically aligns more than 200 optical elements. A visible-wavelength alignment technique is employed which uses a telescope/TV system to view point-light sources appropriately located down the beamline. The centroids of the light spots are determined by a video tracker, which generates error signals used by the computer control system to move appropriate mirrors in a closed-loop system. Final touch-up alignment is accomplished by projecting a CO/sub 2/ alignment laser beam through the system and sensing its position at the target location. The techniques and control algorithms employed have resulted in alignment accuracies exceeding design requirements. By employing video processing to determine the centroids of diffraction images and by averaging over multiple TV frames, we achieve alignment accuracies better than 0.1 times system diffraction limits in the presence of air turbulence.
Date:
January 1, 1983
Creator:
Appert, Q. D. & Bender, S. C.
Object Type:
Article
System:
The UNT Digital Library
Alignment telescope for Antares
The Antares Automatic Alignment System employs a specially designed telescope for alignment of its laser beamlines. There are two telescopes in the system, and since each telescope is a primary alignment reference, stringent boresight accuracy and stability over the focus range were required. Optical and mechanical designs, which meet this requirement as well as that of image quality over a wide wavelength band, are described. Special test techniques for initial assembly and alignment of the telescope are also presented. The telescope, which has a 180-mm aperture FK51-KZF2 type glass doublet objective, requires a boresight accuracy of 2.8 ..mu..rad at two focal lengths, and object distances between 11 meters and infinity. Travel of a smaller secondary doublet provides focus from 11 m to infinity with approximately 7.8 m effective focal length. By flipping in a third doublet, the effective focal length is reduced to 2.5 m. Telescope alignment was accomplished by using a rotary air bearing to establish an axis in front of the system and placing the focus of a Laser Unequal Path Interferometer (LUPI) at the image plane.
Date:
January 1, 1983
Creator:
Appert, Q. D.; Swann, T. A.; Ward, J. H.; Hardesty, C. & Wright, L.
Object Type:
Article
System:
The UNT Digital Library
Geochemistry Research Planning for the Underground Storage of High-Level Nuclear Waste
This report is a preliminary attempt to plan a comprehensive program of geochemistry research aimed at resolving problems connected with the underground storage of high-level nuclear waste. The problems and research needs were identified in a companion report to this one. The research needs were taken as a point of departure and developed into a series of proposed projects with estimated manpowers and durations. The scope of the proposed research is based on consideration of an underground repository as a multiple barrier system. However, the program logic and organization reflect conventional strategies for resolving technological problems. The projects were scheduled and the duration of the program, critical path projects and distribution of manpower determined for both full and minimal programs. The proposed research was then compared with ongoing research within DOE, NRC and elsewhere to identify omissions in current research. Various options were considered for altering the scope of the program, and hence its cost and effectiveness. Finally, recommendations were made for dealing with omissions and uncertainties arising from program implementation. 11 references, 6 figures, 4 tables.
Date:
September 1, 1983
Creator:
Apps, J. A.
Object Type:
Report
System:
The UNT Digital Library
[Photograph 2012.201.B0106.0524]
Photograph used for a newspaper owned by the Oklahoma Publishing Company. Caption: "Packsaddle Bridge," over South Canadian River on U. S. 283 north of I-40 in west central Oklahoma."
Date:
March 1, 1983
Creator:
Argo, Jim
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0106.0527]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Worker Chris Wardlow piles dirt at the Packsaddle Bridge construction site near Roll."
Date:
March 1, 1983
Creator:
Argo, Jim
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0106.0528]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Worker Chris Wardlow piles dirt at the Packsaddle Bridge construction site near Roll."
Date:
March 1, 1983
Creator:
Argo, Jim
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0144.0073]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "The Farmers Co-op grain elevator shown here is the hub of activity in Corn."
Date:
March 1, 1983
Creator:
Argo, Jim
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0170.0045]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "right, OU trainer Dan Pickett, right, and an assistant help back Marcus Dupree off the field after he suffered a pulled hamstring."
Date:
January 1, 1983
Creator:
Argo, Jim
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0170.0241]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Marcus Dupree, Oklahoma's star freshman running back, is helped to the locker room during the first quarter of the Fiesta Bowl after he suffered bruised ribs."
Date:
January 1, 1983
Creator:
Argo, Jim
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0226.0712]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Grain elevator north of leedey"
Date:
March 1, 1983
Creator:
Argo, Jim
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0260.0660]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Work continues on the Northwest Passage on State Highway 270 south of Seiling."
Date:
March 1, 1983
Creator:
Argo, Jim
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0349.0220]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "This peaceful fishin' scene was taken at the dock below the lodge at Lake Altus."
Date:
March 1, 1983
Creator:
Argo, Jim
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0349.0230]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "The scenery juts out at travelers near Quartz Mountain State Park."
Date:
March 1, 1983
Creator:
Argo, Jim
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0353.0609]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Rough waters pummels the shore of Lake Overholser Friday morning as high winds forced officials to close city lakes."
Date:
April 1, 1983
Creator:
Argo, Jim
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0379.0613]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "If this long, double row of mailboxes outside a mobile home park at Elk City is any indication of the number of newcomers to the area, this western Oklahoma town has its fair share."
Date:
March 1, 1983
Creator:
Argo, Jim
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0386.0168]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Chuck Mayuski shows homeowners how to make home improvenen's during an Old House Repair Shop classes at the Neighborhood Development and Conservation Center, 525 NW 13."
Date:
April 1, 1983
Creator:
Argo, Jim
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0394.0482]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "The memorial to the doughboys who fought in World War I stands on the west side of the Kiowa County Courthouse lawn in Hobart."
Date:
March 1, 1983
Creator:
Argo, Jim
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0409.0918]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "At its greatest point of development, the Chisholm Trail extended almost 1,000 miles from southeastern Texas to Abilene, Kan., through the western Oklahoma towns of Waurika, Kingfisher and Enid, among others. This bust of Jesse Chisholm, for whom the trail is named, stands at the Chisholm Trail museum in Kingfisher."
Date:
March 1, 1983
Creator:
Argo, Jim
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0409.0999]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "This home houses the Cleveland County Historical Museum."
Date:
May 1, 1983
Creator:
Argo, Jim
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0957.0034]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Silent workers of the prairie are these oil field pump jacks in a western Oklahoma scene along U.S. Highway 283 southwest of Gage in Ellis County."
Date:
March 1, 1983
Creator:
Argo, Jim
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0988.0086]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Greg Owings of Norman gets ready for Saturday morning's fifth annual Oklahoma Memorial Hospital fun run."
Date:
April 1, 1983
Creator:
Argo, Jim
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B1018.0200]
Photograph used for a story in the Oklahoma Times newspaper. Caption: "Kelly Phelps (7), Fiesta Bowl in Tempe, Ariz."
Date:
January 1, 1983
Creator:
Argo, Jim
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B1018.0202]
Photograph used for a story in the Oklahoma Times newspaper. Caption: "Sooner QB Kelly Phelps looking for running room during Saturday's Fiesta Bowl loss to Arizona State."
Date:
January 1, 1983
Creator:
Argo, Jim
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B1030.0445]
Photograph used for a story in the Oklahoma Times newspaper. Caption: "Kay Precure, left, and Shirley Harris check out local fashions."
Date:
February 1, 1983
Creator:
Argo, Jim
Object Type:
Photograph
System:
The Gateway to Oklahoma History