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Measurement of energy deposited by charged-particle beams in composite targets
We have measured the energy deposited in two types of composite targets by a number of charged-particle beams: targets made of /sup 238/U, Lucite, and polyethylene were exposed to 0.26-GeV protons and 0.33-GeV deuterons, and aluminum-Lucite composites were exposed to 0.5-GeV electrons. In addition, we measured neutrons and gamma rays emitted from solid targets of various materials (including /sup 238/U and iron) exposed to 0.26-GeV protons and 0.33-GeV deuterons. We used passive detectors (thermoluminescence dosimeters, Lexan fission track recorders, and photographic emulsions) to measure the nonfission dose and the fission-fragment dose from the primary beam and its shower of products. Measurements were made at various depths and radial positions in the targets. Plots and numerical values of the measured doses are presented. The emission of neutrons and gamma rays was measured with a liquid-deuterated-benzene detector. In general, the dose profile with depth is similar for 0.26-GeV protons and 0.33-GeV deuterons. The ratio of return neutrons to gamma rays increases with increasing target mass number. Deuterons, however, produce from 1.7 to 5.8 times as many neutrons and gamma rays per particle as do protons.
Date:
July 2, 1980
Creator:
Farley, E.; Becker, J.; Crase, K.; Howe, R. & Selway, D.
Object Type:
Report
System:
The UNT Digital Library
Transducer characterization
This report has been prepared specifically for ultrasonic transducer users within the Nondestructive Testing Evaluation (NDE) community of the weapons complex. The purpose of the report is to establish an initial set of uniform procedures for measuring and recording transducer performance data, and to establish a common foundation on which more comprehensive transducer performance evaluations may be added as future transducer performance criteria expands. Transducer parameters and the problems with measuring them are discussed and procedures for measuring transducer performance are recommended with special precautionary notes regarding critical aspects of each measurement. An important consideration regarding the recommended procedures is the cost of implementation. There are two distinct needs for transducer performance characterization in the complex. Production oriented users need a quick, reliable means to check a transducer to ascertain its suitability for continued service. Development groups and the Transducer Center need a comprehensive characterization means to collect adequate data to evaluate theoretical concepts or to build exact replacement transducers. The instrumentation, equipment, and procedures recommended for monitoring production transducers are utilitarian and provide only that information needed to determine transducer condition.
Date:
July 2, 1980
Creator:
Cross, B. T.; Eoff, J. M.; Schuetz, L. J. & Cunningham, K. R.
Object Type:
Report
System:
The UNT Digital Library
High-power pulsed lasers
The ideas that led to the successful construction and operation of large multibeam fusion lasers at the Lawrence Livermore Laboratory are reviewed. These lasers are based on the use of Nd:glass laser materials. However, most of the concepts are applicable to any laser being designed for fusion experimentation. This report is a summary of lectures given by the author at the 20th Scottish University Summer School in Physics, on Laser Plasma Interaction. This report includes basic concepts of the laser plasma system, a discussion of lasers that are useful for short-pulse, high-power operation, laser design constraints, optical diagnostics, and system organization.
Date:
April 2, 1980
Creator:
Holzrichter, J.F.
Object Type:
Report
System:
The UNT Digital Library
Seismic hazard analysis for the NTS spent reactor fuel test site
An experiment is being directed at the Nevada Test Site to test the feasibility for storage of spent fuel from nuclear reactors in geologic media. As part of this project, an analysis of the earthquake hazard was prepared. This report presents the results of this seismic hazard assessment. Two distinct components of the seismic hazard were addressed: vibratory ground motion and surface displacement. (ACR)
Date:
May 2, 1980
Creator:
Campbell, K.W.
Object Type:
Report
System:
The UNT Digital Library
Materials selection of surface coatings in an advanced size reduction facility. [For decommissioned stainless steel equipment]
A materials selection test program was conducted to characterize optimum interior surface coatings for an advanced size reduction facility. The equipment to be processed by this facility consists of stainless steel apparatus (e.g., glove boxes, piping, and tanks) used for the chemical recovery of plutonium. Test results showed that a primary requirement for a satisfactory coating is ease of decontamination. A closely related concern is the resistance of paint films to nitric acid - plutonium environments. A vinyl copolymer base paint was the only coating, of eight paints tested, with properties that permitted satisfactory decontamination of plutonium and also performed equal to or better than the other paints in the chemical resistance, radiation stability, and impact tests.
Date:
June 2, 1980
Creator:
Briggs, J. L. & Younger, A. F.
Object Type:
Report
System:
The UNT Digital Library
Interim report on concreted uranium fines and chips billet curing tests: a basis for resuming shipment of concreted uranium scrap billets
Through extensive testing and analyses of the concretion process, billets and shipping conditions, it has been determined that properly cured concreted billets can be safely shipped to National Lead Company of Ohio (NLO), Fernald. During curing, billets will be dried for 26 days prior to shipment with the last 10 days between 54 to 66/sup 0/C (130 to 150/sup 0/F). Such dried billets can withstand temperatures up to 85/sup 0/C (185/sup 0/F). The maximum billet temperature that can be expected to occur in shipment is 50/sup 0/C (123/sup 0/F). Thus, the drying cycle becomes a burning test at temperatures which the billets will not reach during shipment to NLO.
Date:
May 2, 1980
Creator:
Weakley, E.A.
Object Type:
Report
System:
The UNT Digital Library
Quality engineering and control. Semiannual progress report, November-December 1978, January-April 1979. [PCB]
This document reports the following: atomic absorption spectroscopy of Ir in Pu-Ir alloys; removal of Pu from soil; surface microanalysis using elemental x-ray mapping; microscopic scanning of Ga in Pu; microscopy of defects in Pu; emission spectroscopy of Ir and Y in PuO/sub 2/; gas chromatograhy of PCB's in transformer oils and water; liquid chromatography of chlorophenoxy acid herbicides in water; solution analysis by spark source mass spectrometry; a portable gas sampling system; flammability testing of HEPA filter materials; identification of Nomex and Kapton in fiberglass filters; bromine in Be density problem; x-ray fluorescence of Nb in U-Nb alloys; reactions in Pu-nitric acid-ethylene glycol; gas-fusion analysis of oxygen in chromium; analysis of sulfate and chloride in water-soluble oils; and decontamination of surface coatings. (DLC)
Date:
August 2, 1980
Creator:
Carpenter, R. L.
Object Type:
Report
System:
The UNT Digital Library
Experimental test accelerator: description and results of initial experiments
The ETA is a high current (10,000 Amp) linear induction accelerator that produces short (30 ns) pulses of electrons at 5 MeV twice per second or in bursts of 5 pulses separated by as little as one millisecond. At this time the machine has operated at 65% of its design current and 90% of the design voltage. This report contains a description of the accelerator and its diagnostics; the results of the initial year of operation; a comparison of design codes with experiments on beam transport; and a discussion of some of the special problems and their status.
Date:
June 2, 1980
Creator:
Fessenden, T.; Birx, D. & Briggs, R.
Object Type:
Report
System:
The UNT Digital Library
Interfacing the tandem mirror reactor to the sulfur-iodine process for hydrogen production
The blanket is linked to the H/sub 2/SO/sub 4/ vaporization units and SO/sub 3/ decomposition reactor with either sodium or helium. The engineering and safety problems associated with these choices are discussed. This H/sub 2/SO/sub 4/ step uses about 90% of the TMR heat and is best close-coupled to the nuclear island. The rest of the process we propose to be driven by steam and does not require close-coupling. The sodium loop coupling seems to be preferable at this time. We can operate with a blanket around 1200 K and the SO/sub 3/ decomposer around 1050 K. This configuration offers double-barrier protection between Li-Na and the SO/sub 3/ process gases. Heat pipes offer an attractive alternate to provide an additional barrier, added modularity for increased reliability, and tritium concentration and isolation operations with very little thermal penalty.
Date:
June 2, 1980
Creator:
Galloway, T.R.
Object Type:
Article
System:
The UNT Digital Library
[Photograph 2012.201.B0139.0355]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Benny Coleman . . . 'Treated real nice"
Date:
July 2, 1980
Creator:
Grier, Bob
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0158.0700]
Photograph used for a newspaper owned by the Oklahoma Publishing Company.
Date:
April 2, 1980
Creator:
Albright, Bob
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0151.0150]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Susan Currie waves a balloon as she models the latest in tennis togs."
Date:
April 2, 1980
Creator:
Grier, Bob
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0161.0246]
Photograph used for a newspaper owned by the Oklahoma Publishing Company. Caption: "Junior Joe Dial of Marlow increased his own state pole vault record an inch by sailing 17'1" to repeat as Class 2A champion."
Date:
May 2, 1980
Creator:
Hoke, Doug
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0156.0160]
Photograph used for a story in the Daily Oklahoman newspaper.
Date:
May 2, 1980
Creator:
McDaniel, David
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0154.0301]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Elton Davis, Director of Financial Aides at the University of Oklahoma, swings Christa Dieponbrock by the arms during a baby-sitting service staffed by Davis and other OU Administrators Friday night."
Date:
May 2, 1980
Creator:
McDaniel, David
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0156.0629]
Photograph used for a story in the Oklahoma Times newspaper. Caption: "Soft-sculpture scarecrows in the likeness of the American Gothic couple attract Omniplex tourist 6-year-old Rachel McKinney of Minneapolis."
Date:
April 2, 1980
Creator:
McDaniel, David
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0144.0619]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Sharing smiles are Ronald Reagan supporter Janie Cotton and a likeness of her favorite presidential aspirant ."
Date:
May 2, 1980
Creator:
Argo, Jim
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0142.0382]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Oklahoma City Manager Jim Cook and his wife Martha Cook, enjoy the pre-dinner festivities"
Date:
October 2, 1980
Creator:
McDaniel, David
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0140.0468]
Photograph used for a story in the Oklahoma Times newspaper. Caption: "Mrs. William H. Combs got some of her shopping out of the way early this week when Target Stores closed their doors to all but senior citizens for two hours on Tuesday."
Date:
December 2, 1980
Creator:
Argo, Jim
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0147.0468]
Photograph used for a story in the Oklahoma Times newspaper. Caption: "State Capitol workers are busy this week preparing for the legislative session opening next Tuesday."
Date:
January 2, 1980
Creator:
Albright, Bob
Object Type:
Photograph
System:
The Gateway to Oklahoma History
Analytical qualification of system identification (modal analysis) codes for use in the dynamic testing of nuclear power plant structures
The analytical evaluation of two particular system identification codes used at Lawrence Livermore Laboratory is presented. Both codes are eigenparameter identification codes; however, one uses a time domain approach while the other a frequency domain approach. The evaluation was accomplished by analytically generating several time history signals in which the true modal parameters were known. These time histories ranged from widely spaced modes with spacing factors of 100 percent to closely spaced modes with spacing factors of 6 percent. These signals were then polluted with various levels of simulated measurement noise and the ability of our computer codes to extract the parameters from this noisy data was evaluated.
Date:
January 2, 1980
Creator:
Weaver, H.J.; Ng, D. & Lager, D.
Object Type:
Report
System:
The UNT Digital Library
Studies in tandem mirror theory. Paper IAEA-CN-38/F-4
This paper discusses the formation, maintenance, and microstability of thermal barriers, which have been introduced as a means for improving tandem mirror reactor performance at reduced technological demands. It also describes calculations of tandem mirror central-cell ..beta.. limits due to MHD ballooning modes.
Date:
June 2, 1980
Creator:
Baldwin, D. E.; Cohen, R. H. & Cutler, T. A.
Object Type:
Article
System:
The UNT Digital Library
Some comments on the Shiva spaceframe earthquake damage
On January 24, 1980, at 11:00 a.m., an earthquake, measuring 5.5 on the Richter scale, shook the Livermore Valley. There were three very pronounced shocks, the first at 5.5 followed by two, one at 5.2 and the other at 4.8, on the Richter scale. The Shiva spaceframe was shaken out of alignment. Shiva consists of two frames, a laser frame and a target frame. Components on each frame stayed within alignment with respect to each other, but the target frame moved with respect to the laser frame. Shearing of the seismic anchor bolts on the target frame was responsible for this misalignment. This was the third in a series of earthquakes for Shiva, the first occurring on June 20, 1977 at a magnitude of 4.7 on the Richter scale and an epicenter 2 miles away. The second quake was on August 6, 1979, with a magnitude of 5.9 and the epicenter 60 miles away. There was no damage or misalignment due to these first two earthquakes. The third however, severely tested the Shiva system and will be the subject of this report. Accelerometers were not in operation on the system so we do not know what the acceleration forces were. …
Date:
June 2, 1980
Creator:
Hurley, C.A.
Object Type:
Report
System:
The UNT Digital Library
Initial Results of the Tandem Mirror Experiment (TMX) at the Lawrence Livermore Laboratory
Initial experimental results from the Tandem Mirror Experiment (TMX) are presented. Axial profiles of the plasma density and potential necessary for electrostatically enhanced confinement of the central-cell ions have been generated and sustained for the duration of neutral-beam injection. The resulting central-cell ion confinement against axial loss is improved by a factor as large as 9 above that given by magnetic confinement alone. The plasma exhibits gross magnetohydrodynamic stability and microstability. Under some conditions, a residual level of ion cyclotron fluctuations in the end cells heats the central-cell ions and degrades their confinement.
Date:
April 2, 1980
Creator:
Grubb, D. P.; Anderson, C. A.; Casper, T. A.; Clauser, J. F.; Coensgen, F. H.; Correll, D. L. et al.
Object Type:
Article
System:
The UNT Digital Library