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Large aperture optical switching devices (open access)

Large aperture optical switching devices

We have developed a new approach to constructing large aperture optical switches for next generation inertial confinement fusion lasers. A transparent plasma electrode formed in low pressure ionized gas acts as a conductive coating to allow the uniform charging of the optical faces of an electro-optic material. In this manner large electric fields can be applied longitudinally to large aperture, high aspect ratio Pockels cells. We propose a four-electrode geometry to create the necessary high conductivity plasma sheets, and have demonstrated fast (less than 10 nsec) switching in a 5x5 cm aperture KD*P Pockels cell with such a design. Detaid modelling of Pockels cell performance with plasma electrodes has been carried out for 15 and 30 cm aperture designs.
Date: December 12, 1983
Creator: Goldhar, J. & Henesian, M.A.
Object Type: Article
System: The UNT Digital Library

[Photograph 2012.201.B0142.0283]

Photograph used for a newspaper owned by the Oklahoma Publishing Company.
Date: December 12, 1983
Creator: Southerland, Paul
Object Type: Photograph
System: The Gateway to Oklahoma History
Beam-dump kicker magnets (open access)

Beam-dump kicker magnets

The beam-dump kicker magnets are located in the final focus region and, in conjunction with septum magnets, extract the beams after they have passed the interaction point (IP) and direct them to their respective dumps. Two schemes for these kickers have been under consideration; ferrite transmission line magnets utilizing technology common with damping rings and positron target kickers, and current loop magnets which are possible only for the dump kickers, where the rise time of the magnetic pulse can be comparatively longer; approximately 400 nanoseconds as compared with 50 nanoseconds for the others. A prototype ferrite kicker has been built and is undergoing tests. Since the current loop requires lower voltage and power plus some additional savings in cost, we decided to build and test a prototype. This note describes in detail an optimized design for the current loop magnets and their associated pulse circuitry.
Date: December 12, 1983
Creator: Bulos, F.; Odian, A. & Tomlin, B.
Object Type: Report
System: The UNT Digital Library

[Photograph 2012.201.B0246.0262]

Photograph used for a story in the Daily Oklahoman newspaper. Caption: "A Holiday Snack Stop brought friends together for a visit before Christmas Day as Carol Hall, Susie Nelson and Mary Ann Haskins."
Date: December 12, 1983
Creator: Sanger, Helen Ford
Object Type: Photograph
System: The Gateway to Oklahoma History

[Photograph 2012.201.B0075.0793]

Photograph used for a newspaper owned by the Oklahoma Publishing Company. Caption: "Alette Johnson of Central State has her shot blocked by southwestern's Anita Foster during a Monday night game in Broncho Field house."
Date: December 12, 1983
Creator: Gooch, Steve
Object Type: Photograph
System: The Gateway to Oklahoma History

[Photograph 2012.201.B0106.0277]

Photograph used for a story in the Oklahoma Times newspaper. Caption: "Workers earlier this week begin construction of a four-lane bridge on NW 164, three blocks east of Western."
Date: December 12, 1983
Creator: Klock, Roger
Object Type: Photograph
System: The Gateway to Oklahoma History

[Photograph 2012.201.B0075.0794]

Photograph used for a newspaper owned by the Oklahoma Publishing Company. Caption: "Carrie Tucker of Central state dribbles away from Dee Dee Woodfork of southwestern during Monday's basketball game in Broncho Field house."
Date: December 12, 1983
Creator: Gooch, Steve
Object Type: Photograph
System: The Gateway to Oklahoma History

[Photograph 2012.201.B0075.0792]

Photograph used for a newspaper owned by the Oklahoma Publishing Company. Caption: "Southwestern's Shorna Coffey takes the ball up on a shot in the Lady Bulldogs' 65-54 victory over Central State Monday night."
Date: December 12, 1983
Creator: Gooch, Steve
Object Type: Photograph
System: The Gateway to Oklahoma History

[Photograph 2012.201.B0309B.0055]

Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Below, Ann Hoover greets Bill and Betty Jackson."
Date: December 12, 1983
Creator: McDaniel, David
Object Type: Photograph
System: The Gateway to Oklahoma History
Reconnection in Spheromak formation and sustainment (open access)

Reconnection in Spheromak formation and sustainment

The Spheromak is a magnetic confinement device that is being explored in both the US and Japanese fusion programs. It is a member of the Compact Torus family of magnetic structures characterized by a set of closed, nested toroidal flux surfaces but without any coils, transformer cores, etc. protruding through the hole in the torus. The Speromak is closely elated to the Reversed Field Pinch (RFP) in that most of the magnetic field is produced by plasma currents flowing along the magnetic field lines (a near force free field) rather than by external coils. The Spheromak has magnetic field components of comparable strength in both the toroidal (azimuthal) and poloidal (in the plane perpendicular to the azimuthal unit vector) directions. The large internal magnetic energy in the Spheromak makes it rich in magnetohydrodynamic phenomena and reconnection, in particular, plays an important role in the formation, resistive decay and instability processes.
Date: December 12, 1983
Creator: Hammer, J. H.
Object Type: Article
System: The UNT Digital Library
Jacksboro Gazette-News (Jacksboro, Tex.), Vol. 104, No. 31, Ed. 1 Monday, December 12, 1983 (open access)

Jacksboro Gazette-News (Jacksboro, Tex.), Vol. 104, No. 31, Ed. 1 Monday, December 12, 1983

Weekly newspaper from Jacksboro, Texas that includes local, state, and national news along with extensive advertising.
Date: December 12, 1983
Creator: McGee, Leigh
Object Type: Newspaper
System: The Portal to Texas History

[Photograph 2012.201.B1430.0245]

Photograph used for a story in the Oklahoma Times newspaper. Caption: "Tiny point stockings hang by the chimney in a Zigler doll mansion."
Date: December 12, 1983
Creator: unknown
Object Type: Photograph
System: The Gateway to Oklahoma History
The Baytown Sun (Baytown, Tex.), Vol. 62, No. 036, Ed. 1 Monday, December 12, 1983 (open access)

The Baytown Sun (Baytown, Tex.), Vol. 62, No. 036, Ed. 1 Monday, December 12, 1983

Daily newspaper from Baytown, Texas that includes local, state, and national news along with advertising.
Date: December 12, 1983
Creator: Brown, Leon
Object Type: Newspaper
System: The Portal to Texas History

[Photograph 2012.201.B0394.0103]

Photograph used for a newspaper owned by the Oklahoma Publishing Company.
Date: December 12, 1983
Creator: Beckel, Jim
Object Type: Photograph
System: The Gateway to Oklahoma History

[Photograph 2012.201.B0324.0141]

Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Central State women's coach John Keely shouts words of encouragement during the Lady Bronchos 65-54 loss to No. 1 Southwestern Monday night at Bronco Fieldhouse."
Date: December 12, 1983
Creator: Gooch, Steve
Object Type: Photograph
System: The Gateway to Oklahoma History

[Photograph 2012.201.B1034.0996]

Photograph used for a story in the Oklahoma Times newspaper. Caption: "Putnam City High students, from left, Tammy Greene, Michelle McIntyre and Paul Lee make poinsettias for the school's "Fire and Frost" dance, 8 p.m. Saturday at Central State Univ."
Date: December 12, 1983
Creator: Southerland, Paul B.
Object Type: Photograph
System: The Gateway to Oklahoma History

[Photograph 2012.201.B1110.0446]

Photograph used for a story in the Daily Oklahoman newspaper. Caption: "If market analysts are right, Rober Rowell is About to become the Orville Redenbacher of beef jerky."
Date: December 12, 1983
Creator: Howell, Paul S.
Object Type: Photograph
System: The Gateway to Oklahoma History

[Photograph 2012.201.B1110.0447]

Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Employee David Baker dumps raw jerky into a tub."
Date: December 12, 1983
Creator: Howell, Paul S.
Object Type: Photograph
System: The Gateway to Oklahoma History

[Photograph 2012.201.B1182.0604]

Photograph used for a story in the Oklahoma Times newspaper. Caption: "Ed Marshall, assistant chief of nursing in the VA Hospital's critical care complex, kneels to examine a wheelchair donated to the hospital by American Legion Auxiliary Unit 35."
Date: December 12, 1983
Creator: Beckel, Jim
Object Type: Photograph
System: The Gateway to Oklahoma History

[Photograph 2012.201.B1009.0414]

Photograph used for a story in the Oklahoma Times newspaper.
Date: December 12, 1983
Creator: unknown
Object Type: Photograph
System: The Gateway to Oklahoma History

[Photograph 2012.201.B1172.0467]

Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Symphony are Dick Sias, chairman of the Diamond Circle committee; Jean Blair and Patrick Alexander, symphony manager, from left."
Date: December 12, 1983
Creator: McDaniel, David
Object Type: Photograph
System: The Gateway to Oklahoma History

[Photograph 2012.201.B1207.0235]

Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Drew Stephens, new an Oklahoma City businessman, was one of the primary characters in the real-life drama that has become the subject of a movie cailed 'Silkwood."
Date: December 12, 1983
Creator: Beckel, Jim
Object Type: Photograph
System: The Gateway to Oklahoma History
[News Clip: County Budget] captions transcript

[News Clip: County Budget]

Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date: December 12, 1983, 6:00 p.m.
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Object Type: Video
System: The UNT Digital Library
[News Clip: Arlington roads] captions transcript

[News Clip: Arlington roads]

Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date: December 12, 1983, 6:00 p.m.
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Object Type: Video
System: The UNT Digital Library