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Near-real-time actinide concentrations via energy dispersive XRFA for process control and material accountability (open access)

Near-real-time actinide concentrations via energy dispersive XRFA for process control and material accountability

A Co-57 based XRFA system has been installed on-line at ICPP to monitor uranium concentrations after first cycle decontamination. A small, medium, or large collimator is used to restrict fission product (fp) background count rates. Using two 50 mCi sources, 1 gU/1 can be measured to +-2% in 10 min with the medium collimator. A computer-based MCA runs the system automatically, controls an insertable U foil (allows calibration anytime) and an automatic W shutter (permits removal of fp background); prints hourly mean U concentrations and a daily log of past 24-h means. Co-57 sources are changed annually in 1 min without disassembly of a lead-steel enclosure that surrounds the de-entrainment tank and XRFA assembly.
Date: November 18, 1983
Creator: Camp, D. C.; Ruhter, W. D.; Johnson, C. E. & Piper, T. C.
Object Type: Article
System: The UNT Digital Library

[Photograph 2012.201.B0115.0464]

Photograph used for a newspaper owned by the Oklahoma Publishing Company. Caption: "The "western" in Mustang's recent Western Days was obvious to visitors to the all-day event."
Date: September 18, 1983
Creator: McDaniel, David
Object Type: Photograph
System: The Gateway to Oklahoma History

[Photograph 2012.201.B0091.0765]

Photograph used for a story in the Oklahoma Times newspaper. Caption: "PCC coach Charles Bishop has his eyes on the mats."
Date: January 18, 1983
Creator: Wilson, George R.
Object Type: Photograph
System: The Gateway to Oklahoma History

[Photograph 2012.201.B0171.0557]

Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Angela Helen learns from woodworking instructor Adrian Easlick about one phase of the world of jobs during the Comprehensive Educational Training Act program, under way at Southeast High School."
Date: July 18, 1983
Creator: Southerland, Paul B.
Object Type: Photograph
System: The Gateway to Oklahoma History

[Photograph 2012.201.B0155.0100]

Photograph used for a story in the Oklahoma Times newspaper. Caption: "Seymour Davis delves into his bag of tricks to surprise EWI vice president Marjorie Tolle."
Date: January 18, 1983
Creator: Wilson, George R.
Object Type: Photograph
System: The Gateway to Oklahoma History

[Photograph 2012.201.B0162.0182]

Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Coach David Diefenderfer of Hefner has his eyes on the junior high wrestling action during last week's Edmond Invitational."
Date: January 18, 1983
Creator: Wilson, George R.
Object Type: Photograph
System: The Gateway to Oklahoma History

[Photograph 2012.201.B0170.0191]

Photograph used for a newspaper owned by the Oklahoma Publishing Company.
Date: December 18, 1983
Creator: Wilson, George R.
Object Type: Photograph
System: The Gateway to Oklahoma History

[Photograph 2012.201.B0156.0486]

Photograph used for a newspaper owned by the Oklahoma Publishing Company. Caption: "Tearoom committee co-chairman Susan Daughterly, standing, serves Dana Hoppers, Judy Watts and Julane Whitmire, from left."
Date: May 18, 1983
Creator: Beckel, Jim
Object Type: Photograph
System: The Gateway to Oklahoma History

[Photograph 2012.201.B0134.0432]

Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Shorty Chronister has retired from barbering to devote time to anther hobby, plants.."
Date: November 18, 1983
Creator: Howell, Paul S.
Object Type: Photograph
System: The Gateway to Oklahoma History

[Photograph 2012.201.B0140.0009]

Photograph used for a story in the Oklahoma Times newspaper. Caption: "Georgia Collins, hostess Bobby Brown, Patti Riggin and Cathy McCown, from left, prepare for an off court break of quiche, salad and dessert in the Brown home during the 'Let Daddy Babysit' day."
Date: February 18, 1983
Creator: Wilson, George R.
Object Type: Photograph
System: The Gateway to Oklahoma History

[Photograph 2012.201.B0145.0058]

Photograph used for a newspaper owned by the Oklahoma Publishing Company. Caption: "These Council Grove Elementary second graders and their librarian enjoy cheese and crackers to celebrate Mickey Mouse's 55th birthday."
Date: November 18, 1983
Creator: Klock, Roger
Object Type: Photograph
System: The Gateway to Oklahoma History

[Photograph 2012.201.B0308B.0192]

Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Students at Jarman Junior High got into the holiday spirit with a food drive to benefit senior citizens."
Date: November 18, 1983
Creator: Albright, Bob
Object Type: Photograph
System: The Gateway to Oklahoma History

[Photograph 2012.201.B0329.0570]

Photograph used for a story in the Oklahoma Times newspaper. Caption: "Mustang Brian Kimball"
Date: November 18, 1983
Creator: McDaniel, David
Object Type: Photograph
System: The Gateway to Oklahoma History

[Photograph 2012.201.B0304B.0459]

Photograph used for a story in the Oklahoma Times newspaper. Caption: "Chatting at a Phi Delta Kappa, Gamma Epsilon chapter, reception, left photo, are honorees Helen L. Johnson, left, and Betty Mason."
Date: December 18, 1983
Creator: McDaniel, David
Object Type: Photograph
System: The Gateway to Oklahoma History
Evolution of the mirror machine (open access)

Evolution of the mirror machine

The history of the magnetic-mirror approach to a fusion reactor is primarily the history of our understanding and control of several crucial physics issues, coupled with progress in the technology of heating and confining a reacting plasma. The basic requirement of an MHD-stable plasma equilibrium was achieved following the early introduction of minimum-B multipolar magnetic fields. In refined form, the same magnetic-well principle carries over to our present experiments and to reactor designs. The higher frequency microinstabilities, arising from the non-Maxwellian particle distributions inherent in mirror machines, have gradually come under control as theoretical prescriptions for distribution functions have been applied in the experiments. Even with stability, the classical plasma leakage through the mirrors posed a serious question for reactor viability until the principle of electrostatic axial stoppering was applied in the tandem mirror configuration. Experiments to test this principle successfully demonstrated the substantial improvement in confinement predicted. Concurrent with advances in mirror plasma physics, development of both high-power neutral beam injectors and high-speed vacuum pumping techniques has played a crucial role in ongoing experiments. Together with superconducting magnets, cryogenic pumping, and high-power radiofrequency heating, these technologies have evolved to a level that extrapolates readily to meet the requirements of …
Date: August 18, 1983
Creator: Damm, C. C.
Object Type: Article
System: The UNT Digital Library
Shock Hugoniot measurements on Ta to 0. 78 TPa (open access)

Shock Hugoniot measurements on Ta to 0. 78 TPa

Symmetric impact shock Hugoniot measurements have been made on Ta with an electrically exploded foil gun system. The results obtained to date for the Hugoniot of Ta cover the range 0.19 to 0.78 TPa (impact velocities from 4.0 to 9.7 km/s) and agree with data obtained by other researchers to within 2.7% rms. Recent improvements in the system include electromagnetic shielding of impactor and target, continuous measurement of impactor velocity with a Fabry-Perot interferometer and computer-aided analysis of shot film. Conservative extrapolation from current operating conditions indicate that pressures of 1.1 to 1.5 TPa could be achieved with little difficulty.
Date: August 18, 1983
Creator: Froeschner, K. E.; Lee, R. S.; Chau, H. H. & Weingart, R. C.
Object Type: Article
System: The UNT Digital Library
Status report for data files and Monte Carlo transport codes maintained by the Physical Data Group of LLNL (open access)

Status report for data files and Monte Carlo transport codes maintained by the Physical Data Group of LLNL

The Physical Data Group of the Theoretical Physics Division of LLNL has developed and maintains several basic data files, several Monte Carlo transport codes, and the requisite processing codes that convert the basic data to the form required by our own transport codes and by other laboratory transport and burn codes. The data files (libraries) that we maintain are listed together with a few comments about each.
Date: October 18, 1983
Creator: Howerton, Robert J.
Object Type: Report
System: The UNT Digital Library
Accident at Three Mile Island and its aftermath (open access)

Accident at Three Mile Island and its aftermath

Viewgraphs are presented that describe the Three Mile Island-2 reactor; the severe accident in the reactor; activity levels following the accident; and estimated costs associated with the accident.
Date: April 18, 1983
Creator: Malinauskas, A.P.
Object Type: Report
System: The UNT Digital Library

[Photograph 2012.201.B0261C.0400]

Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Benjamin Hooks, executive director of the NAACP, criticized the Reagan administration and its positions toward minorities."
Date: July 18, 1983
Creator: McDaniel, David
Object Type: Photograph
System: The Gateway to Oklahoma History

[Photograph 2012.201.B0333.0320]

Photograph used for a story in the Oklahoma Times newspaper. Caption: "Prep picker Dave Pego sought some outside inspiration."
Date: November 18, 1983
Creator: Argo, Jim
Object Type: Photograph
System: The Gateway to Oklahoma History

[Photograph 2012.201.B0322.0084]

Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Dr. David Kallenberger, at Quail Creek Golf and Country Club's"
Date: July 18, 1983
Creator: unknown
Object Type: Photograph
System: The Gateway to Oklahoma History

[Photograph 2012.201.B0348.0351]

Photograph used for a story in the Oklahoma Times newspaper. Caption: "Timothy R. Kutch, son of Gerald F. and Ann Kutch, 1216 Easthills Drive, Moore has earned the rank of Eagle Scout Kutch, 15, is a member of Troop 291 and is a 10th-grader at central Mid-High."
Date: February 18, 1983
Creator: Hoke, Doug
Object Type: Photograph
System: The Gateway to Oklahoma History

[Photograph 2012.201.B0226.0618]

Photograph used for a story in the Oklahoma Times newspaper. Caption: "Jack Graham, left, receives best wishes from Roy J. Thompson."
Date: March 18, 1983
Creator: Hoke, Doug
Object Type: Photograph
System: The Gateway to Oklahoma History

[Photograph 2012.201.B0261C.0398]

Photograph used for a newspaper owned by the Oklahoma Publishing Company.
Date: July 18, 1983
Creator: McDaniel, David
Object Type: Photograph
System: The Gateway to Oklahoma History