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3-D electromagnetic modeling of wakefields in accelerator components
We discuss the use of 3-D finite-difference time-domain (FDTD) electromagnetic codes for modeling accelerator components. Computational modeling of cylindrically symmetric structures such as induction accelerator cells has been very successful in predicting the wake potential and wake impedances of these structures, but full 3-D modeling of complex structures has been limited due to substantial computer resources required for a full 3-D model. New massively parallel 3-D time domain electromagnetic codes now under development using conforming unstructured meshes allow a substantial increase in the geometric fidelity of the structures being modeled. Development of these new codes are discussed in context of applicability to accelerator problems. Various 3-D structures are tested with an existing cubical cell FDTD code and wake impedances compared with simple analytic models for the structures; results will be used as benchmarks for testing the new time time domain codes. Structures under consideration include a stripline beam position monitor as well as circular and elliptical apertures in circular waveguides. Excellent agreement for monopole and dipole impedances with models were found for these structures below the cutoff frequency of the beam line.
Date:
September 18, 1996
Creator:
Poole, B.R.; Caporaso, G.J.; Ng, Wang C.; Shang, C.C. & Steich, D.
Object Type:
Article
System:
The UNT Digital Library
12 PWR Assembly MPC Waste Package Criticality Analysis
This analysis was prepared to determine the viability of the MPC PWR-12 waste package concept with respect to criticality regulatory requirements in compliance with the goals of the Waste Package Implementation Plans for conceptual design.
Date:
January 18, 1996
Creator:
Davis, J.
Object Type:
Report
System:
The UNT Digital Library
45-day safety screen results and final report for Tank 241-C-203, Auger samples 95 AUG-020 and 95-AUG-021
This document serves as the 45-day report deliverable for the tank C-203 auger samples collected on April 5, 1995 (samples 95-AUG-20 and 95-AUG-021). As no secondary analyses were required and no other analyses have been requested, this document also serves as the final report for C-203 auger sampling. Each sample was received, extruded, and analyzed by the 222-S Laboratories in accordance with the Tank Characterization Plan (TCP) referenced below. Included in this report are the primary safety screening results (DSC, TGA, and alpha) and density results. The worklists and raw data are included in this report. Photographs of the auger samples were taken during extrusion and, although not included in this report, are available.
Date:
May 18, 1995
Creator:
Conner, J.M.
Object Type:
Report
System:
The UNT Digital Library
100 areas technical activities report - engineering, May, 1948
This report is the May, 1948, progress report from the pile engineering groups in support of the production reactors in the 100 Area of the Hanford Reservation. Included are studies of reactor slug fabrication techniques relative to blistering and corrosion, corrosion of reactor components, studies and design of graphite blocks for reactors, and reactor cover gas changes and studies.
Date:
June 18, 1994
Creator:
Woods, W. K.
Object Type:
Report
System:
The UNT Digital Library
241-BY-106 sampling test plan
This plan outlines the approach to be taken on obtaining the second core from 241-BY-106, riser 10B, using the Rotary Mode Core Sample Truck (RMCST). The purpose for obtaining the second core is to retrieve the final segments to determine ferrocyanide content. The first core acquired from riser 10B resulted in inadequate sample recovery for the labs to perform the required analysis. Thirteen samples were taken, with recovery varying from 0 to 100%. The most likely contributors to poor sample recovery have been identified and explained on a sample-by sample basis as outlined in this report. This information has been used to devise the approach to be taken in obtaining the second core.
Date:
January 18, 1995
Creator:
Bogen, G. J.
Object Type:
Report
System:
The UNT Digital Library
105K West Isolation Barrier Acceptance Test results
The objective of this document is to report and interpret the findings of the isolation barrier acceptance tests performed in 105KW/100K. The tests were performed in accordance with the test plan and acceptance test procedure. The test report contains the test data. This document compares the test data against the criteria. A discussion of the leak rate analytical characterization describes how the flow characteristics flow rate will be determined using the test data from the test report. Two modes of water loss were considered; basin and/or discharge chute leakage, and evaporation. An initial test established baseline leakage data and instrumentation performance. Test 2 evaluated the sealing performance of the isolation barrier by inducing an 11 in. (27.9 cm) level differential across the barrier. The leak rate at this 11 in. (27.9 cm) level is extrapolated to the 16 ft. (4.9 m) level differential postulated in the DBE post seismic event. If the leak rate, adjusted for evaporation and basin leakage (determined from Test 1), is less than the SAR limit of 1,500 gph (5,680 lph) at a 16 ft (4.9 m) level differential, the barriers pass the acceptance test.
Date:
May 18, 1995
Creator:
McCracken, K. J. & Irwin, J. J.
Object Type:
Report
System:
The UNT Digital Library
11th International Conference of Radiation Research
Topics discussed in the conference included the following: Radiation Physics, Radiation Chemistry and modelling--Radiation physics and dosimetry; Electron transfer in biological media; Radiation chemistry; Biophysical and biochemical modelling; Mechanisms of DNA damage; Assays of DNA damage; Energy deposition in micro volumes; Photo-effects; Special techniques and technologies; Oxidative damage. Molecular and cellular effects-- Photobiology; Cell cycle effects; DNA damage: Strand breaks; DNA damage: Bases; DNA damage Non-targeted; DNA damage: other; Chromosome aberrations: clonal; Chromosomal aberrations: non-clonal; Interactions: Heat/Radiation/Drugs; Biochemical effects; Protein expression; Gene induction; Co-operative effects; ``Bystander'' effects; Oxidative stress effects; Recovery from radiation damage. DNA damage and repair -- DNA repair genes; DNA repair deficient diseases; DNA repair enzymology; Epigenetic effects on repair; and Ataxia and ATM.
Date:
July 18, 1999
Creator:
unknown
Object Type:
Article
System:
The UNT Digital Library
[15th annual "Black Music and the Civil Rights" concert tape 1 of 2]
Video footage from The Black Academy of Arts and Letters recorded during their 15th annual Black Music and the Civil Rights Movement Concert held on January 17th, 1998 at the Meyerson Symphony center. The concert is entitled "Our Youth and the Civil Rights Movement: Continuing the Legacy" featuring youth and young adult vocalists along with special guest Erykah Badu.
Date:
January 18, 1998
Creator:
King, Curtis & Badu, Erykah
Object Type:
Video
System:
The UNT Digital Library
[15th annual "Black Music and the Civil Rights" concert tape 2 of 2]
Video footage from The Black Academy of Arts and Letters recorded during their 15th annual Black Music and the Civil Rights Movement Concert held on January 17th, 1998 at the Meyerson Symphony Center. The concert is entitled "Our Youth and the Civil Rights Movement: Continuing the Legacy" featuring youth and young adult vocalists along with special guest Erykah Badu.
Date:
January 18, 1998
Creator:
King, Curtis & Badu, Erykah
Object Type:
Video
System:
The UNT Digital Library
15th Street News (Midwest City, Okla.), Vol. 19, No. 15, Ed. 1 Friday, January 18, 1991
Newspaper from Rose State College in Midwest City, Oklahoma that includes national, local, and campus news along with advertising.
Date:
January 18, 1991
Creator:
Garland, S. E.
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
15th Street News (Midwest City, Okla.), Vol. 19, No. 33, Ed. 1 Thursday, July 18, 1991
Newspaper from Rose State College in Midwest City, Oklahoma that includes national, local, and campus news along with advertising.
Date:
July 18, 1991
Creator:
Love, Janet
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
15th Street News (Midwest City, Okla.), Vol. 20, No. 7, Ed. 1 Friday, October 18, 1991
Newspaper from Rose State College in Midwest City, Oklahoma that includes national, local, and campus news along with advertising.
Date:
October 18, 1991
Creator:
Kelly, Frank
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
15th Street News (Midwest City, Okla.), Vol. 20, No. 30, Ed. 1 Thursday, June 18, 1992
Newspaper from Rose State College in Midwest City, Oklahoma that includes national, local, and campus news along with advertising.
Date:
June 18, 1992
Creator:
Rackley, Jamie
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
15th Street News (Midwest City, Okla.), Vol. 22, No. 19, Ed. 1 Friday, February 18, 1994
Newspaper from Rose State College in Midwest City, Oklahoma that includes national, local, and campus news along with advertising.
Date:
February 18, 1994
Creator:
Saunders, Ricky
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
15th Street News (Midwest City, Okla.), Vol. 23, No. 11, Ed. 1 Friday, November 18, 1994
Newspaper from Rose State College in Midwest City, Oklahoma that includes national, local, and campus news along with advertising.
Date:
November 18, 1994
Creator:
Jackson, Chana
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
15th Street News (Midwest City, Okla.), Vol. 25, No. 33, Ed. 1 Thursday, July 18, 1996
Newspaper from Rose State College in Midwest City, Oklahoma that includes national, local, and campus news along with advertising.
Date:
July 18, 1996
Creator:
Slayton, Marni
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
15th Street News (Midwest City, Okla.), Vol. 26, No. 26, Ed. 1 Friday, April 18, 1997
Newspaper from Rose State College in Midwest City, Oklahoma that includes national, local, and campus news along with advertising.
Date:
April 18, 1997
Creator:
Easttom, Holly
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
15th Street News (Midwest City, Okla.), Vol. 27, No. 31, Ed. 1 Thursday, June 18, 1998
Newspaper from Rose State College in Midwest City, Oklahoma that includes national, local, and campus news along with advertising.
Date:
June 18, 1998
Creator:
Pace, Joshua
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
15th Street News (Midwest City, Okla.), Vol. 28, No. 3, Ed. 1 Friday, September 18, 1998
Newspaper from Rose State College in Midwest City, Oklahoma that includes national, local, and campus news along with advertising.
Date:
September 18, 1998
Creator:
Pace, Joshua
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
(The 1990 run of the WA80 experiment)
The traveler spent six weeks at CERN participating in the 1990 run of the WA80 experiment. The traveler concentrated on trigger electronics for the first two weeks and on operation of the experiment for much of the next four. New electronics designed at ORNL for reading out the new BGO spectrometer were tested with the BGO in beam. Improvements were made, in collaboration with the ORNL engineers who designed the electronics. Plans were made for constructing the electronics in large quantities. Conversations were had with other members of WA80 about the analysis of results from this year's run and our plans for the 1991/1992 runs proposed for CERN. Lengthy conversations were had about the draft of a first paper concerning limits on direct photon production. Finally, the traveler attended an all-day session of the dilepton working group chartered to consider dilepton and photon experiments using heavy-ion beams in CERN's to-be-proposed Large Hadron Collider (LHC). At this meeting the traveler presented recent results from the group working on such a proposal for RHIC and updated his earlier presentation of June 1990 in this working group.
Date:
September 18, 1990
Creator:
Young, G. R.
Object Type:
Report
System:
The UNT Digital Library
1997 Annual cathodic protection survey report for PFP
This report is the first annual cathodic protection report for PFP. The report documents annual polarization , voltage, amperage, and continuity survey data from 1994 to 1997.
Date:
May 18, 1999
Creator:
BOWMAN, T.J.
Object Type:
Report
System:
The UNT Digital Library
1997 Annual cathodic protection survey report for the 242-A evaporator
This report is the first annual cathodic protection report for the 242-A evaporator. The report documents annual polarization survey data and bimonthly rectifier inspection data from 1994 to 1997.
Date:
May 18, 1999
Creator:
BOWMAN, T.J.
Object Type:
Report
System:
The UNT Digital Library
2l-nl{prime} x-ray transitions from neonlike charge states of the row 5 metals with 39 {le} Z {le} 46
X-ray spectra of 2l-2l{prime} transitions with 3 {le} n {le} 12 in the row five transition metals zirconium (Z = 40), niobium (Z = 41), molybdenum (Z = 42) and palladium (Z = 46) from charge states around neonlike have been observed from Alcator C-Mod plasmas. Accurate wavelengths ({+-} .2 m{angstrom}) have been determined by comparison with neighboring argon, chlorine and sulfur lines with well known wavelengths. Line identifications have been made by comparison to ab initio atomic structure calculations, using a fully relativistic, parametric potential code. For neonlike ions, calculated wavelengths and oscillator strengths are tabulated for 2p-nd transitions in Y (Z = 39), Tc (Z = 43), Ru (Z = 44) and Rh (Z = 45) with n = 6 and 7. The magnitude of the configuration interaction between the (2p{sup 5}){sub 1/2}6d{sub 3/2} J = 1 level and the (2p{sup 5}){sub 3/2}7D{sub 5/2} J = 1 levels is demonstrated as a function of atomic number for successive neonlike ions. Measured spectra of selected transitions in the aluminum-, magnesium-, sodium- and fluorine like isosequences are also shown.
Date:
March 18, 1996
Creator:
Rice, J. E.; Terry, J. L.; Marmar, E. S.; Fournier, K. B.; Goldstein, W. H.; Finkenthal, M. et al.
Object Type:
Article
System:
The UNT Digital Library
[30th anniversary of the march on Washington concert, tape 1]
Video footage from The Black Academy of Arts and Letters recorded during the 30th anniversary of the march on Washington celebratory performance held at the Kennedy Performing Arts Center in Washington D. C.. Entitled 'I Remember.." the VHS footage show includes speakers, dancers, and musicians.
Date:
October 18, 1993
Creator:
unknown
Object Type:
Video
System:
The UNT Digital Library