UNT Libraries Government Documents Department - 17 Matching Results

Search Results

Results: 1 - 17
open access

Approach to IAEA material-balance verification with intermittent inspection at the Portsmouth Gas Centrifuge Enrichment Plant

Description: This paper describes a potential approach by which the International Atomic Energy Agency (IAEA) might verify the nuclear-material balance at the Portsmouth Gas Centrifuge Enrichment Plant (GCEP) for the circumstance in which the IAEA inspections occur on an intermittent basis. The verification approach is a variation of the standard IAEA attributes/variables measurement-verification method. This alternative approach is useful and applicable at the Portsmouth GCEP, which will ship all its produ… more
Date: May 18, 1984
Creator: Gordon, D. M. & Sanborn, J. B.
Item Type: Refine your search to only Report
open access

ATA probe beam experiment

Description: The philosophy of these tests is to measure the motion of a low current, small diameter electron beam in the accelerator before running high current. By using low current, we can study particle motion in the applied fields without any extra complications associated with the self-forces of high currents. With the steering magnets off, we have measured the transverse drift of the probe beam. Also, we have used the probe beam to optimize the current in the steering magnets to compensate for the dr… more
Date: June 18, 1984
Creator: Lauer, E. J.; Chong, Y. P.; Prono, D. S. & Weir, J. T.
Item Type: Refine your search to only Article
open access

Cash and Non-Cash Benefits for Persons with Limited Income: Eligibility Rules, Recipient and Expenditure Data, FY1981-83

Description: This report summarizes basic eligibility rules, as of May 1984, for more than 70 cash and non-cash programs that benefit primarily persons of limited income. It also gives funding formulas, benefit levels, and, for fiscal years 1981-1983, recipient numbers and expenditure data for each program.
Date: June 18, 1984
Creator: Burke, Vee
Item Type: Refine your search to only Report
open access

Developing models for simulation of pinched-beam dynamics in heavy ion fusion

Description: Hydrodynamic models have been derived by Mark and Yu and by others to describe energetic pinched-beams, such as those used in ion-beam fusion. The closure of the Mark-Yu model is obtained with adiabatic assumptions mathematically analogous to those of Chew, Goldberger, and Low for MHD. The other models treated here use an ideal gas closure and a closure by Newcomb based on an expansion in V/sub th//V/sub z/. Features of these hydrodynamic beam models are compared with a kinetic treatment.
Date: January 18, 1984
Creator: Boyd, J. K.; Mark, J. W. K.; Sharp, W. M. & Yu, S. S.
Item Type: Refine your search to only Article
open access

Electrochemical determination of the corrosion behavior of candidate alloys proposed for containment of high level nuclear waste in tuff

Description: Long-term geological disposal of nuclear waste requires corrosion-resistant canister materials for encapsulation. Several austenitic stainless steels are under consideration for such purposes for the disposal of high-level waste at the candidate repository site located at Yucca Mountain, Nevada. With regard to corrosion considerations, a worst case scenario at this prospective repository location would result from the intrusion of vadose water. This preliminary study focuses on the electrochemi… more
Date: June 18, 1984
Creator: Glass, R.S.; Overturf, G.E.; Garrison, R.E. & McCright, R.D.
Item Type: Refine your search to only Report
open access

EP-toxicity testing of mercury removal resin grout

Description: To determine which category a waste will fit into, the EPA requires a classification test. The test, EP-toxicity, consists of a physical integrity test followed by an extraction. For the case of the mercury removal resin grout, the mercury concentration in the extract cannot exceed 0.2 mg/L if the waste is to be classified as ``solid waste.`` Otherwise, the waste is classified as ``hazardous.`` Simulated process solutions were used to load the mercury removal resin. The resin was solidified wit… more
Date: July 18, 1984
Creator: Mersman, K. E.
Item Type: Refine your search to only Report
open access

Evolution of the mirror approach to fusion: some conjectures

Description: Some possible directions for the future evolution of the mirror approach to fusion are outlined, in the context of economically-motivated criteria. Speculations are given as to the potential advantages, economic and otherwise, of the use of axially-symmetric systems, operated in semi-collisional regimes of lower Q (fusion power balance ratio) than that projected for present-day tandem mirror designs. These regims include barely tandem modes, and ion-heated modes, in association with higher effi… more
Date: September 18, 1984
Creator: Post, Richard E.
Item Type: Refine your search to only Article
open access

Experiments on ETA comparing wire-conditioned and non-wire-conditioned beam propagation

Description: This report describes experiments in beam propagation with the ETA beam during 1982 following accelerator cavity modifications which allowed a maximum beam current of up to 8 kA at the entrance to the propagation tank. A prominent new feature of the propagation in high pressure gas was an enhancement of the net current as the beam propagated. In some cases this enhanced current was nearly double the injected beam current. The strong current enhancement was associated with strong transverse hose… more
Date: January 18, 1984
Creator: Clark, J. C.; Lauer, E. J.; Prono, D. S. & Struve, K. W.
Item Type: Refine your search to only Report
open access

Former Presidents: Pensions, Facilities, and Services

Description: The Former Presidents Act (72 Stat. 838) of 1958 provides financial and practical means to those who have served as President of the United States and still retain certain implicit public duties. In 1958, the cost of former Presidents to the public was an estimated $64,000. In FY84, approximately $27 million will be spent on benefits to former Presidents and their widows. Operation and maintenance of Presidential Libraries was approximately $14.9 million in FY83. This report discusses increasin… more
Date: May 18, 1984
Creator: Smith, Stephanie
Item Type: Refine your search to only Report
open access

Geothermal pumping systems

Description: After successful field testing of a prototype pressurized lubrication system designed to prevent brine intrusion and loss of lubricating oil from the motor and protector sections of electric submersible pumps, a second-generation lubrication system has been designed, fabricated, and laboratory tested. Based on a sensitive downhole pressure regulator, this system is not depth limited and it accurately controls the differential pressure between the motor oil and the external brine. The first prod… more
Date: October 18, 1984
Creator: Hanold, R. J.
Item Type: Refine your search to only Article
open access

HELIA - high energy linear induction accelerators

Description: A novel approach to providing high voltage (>10 MV), high current (>200 kA), short duration (20-40 ns), particle beam pulses is described. The approach uses 1 MV Metglas isolated cavities driven by water pulse lines. These are stacked in series by using a magnetically insulated cathode stalk. Results from modeling of the cavity and cores and from a full sized single-cavity experiment are discussed. Plans for a four-cavity experiment to prove the principle of voltage addition by stacking cavitie… more
Date: June 18, 1984
Creator: Hasti, D. E.; Ramirez, J. J.; Corley, J. P.; Poukey, J. W.; Prestwich, K. R.; Genuario, R. D. et al.
Item Type: Refine your search to only Article
open access

Overview of raise boring and blind shaft drilling with practical applications and particular reference to design limits for accuracy

Description: The current excavation technology of raise boring and blind shaft drilling operations is reviewed. Examples are presented of recent applications of both downhole boring machines and surface-mounted rotary shaft drilling equipment, with comparisons made of operational characteristics, shaft sizes, and accuracy limits of each system. Raise-boring and box-drilling machines are described and current operating practices of these systems are reviewed. The increased interest in slant hole or inclined … more
Date: April 18, 1984
Creator: Neudecker, J.W. Jr.
Item Type: Refine your search to only Article
open access

Performance of the Cascade inertial-confinement-fusion conceptual reactor

Description: A 4.5-m-radius rotating fusion reactor made of silicon carbide and containing a moving 1-m-thick lithium-ceramic granular blanket can produce 3000 MW/sub t/. The blanket operates at high temperature (>1200 K) leading to gross plant efficiencies of up to 60% using a combined helium-gas turbine (Brayton cycle) with a vapor bottoming cycle.
Date: September 18, 1984
Creator: Pitts, J.H.
Item Type: Refine your search to only Article
open access

Reaction of the Topopah Spring Tuff with J-13 water at 120{sup 0}C

Description: This report describes a series of hydrothermal experiments using crushed tuff from the Topopah Spring Member and natural ground water from well J-13. The purpose of these experiments is to define the changes in water chemistry that would result from temperature changes caused by emplacing high-level nuclear waste in a repository in the Topopah Spring tuff. Experiments were conducted at 120{sup 0}C in Teflon-lined reaction vessels at four separate rock-to-water ratios and for reaction times up t… more
Date: July 18, 1984
Creator: Oversby, V.M.
Item Type: Refine your search to only Report
open access

Super-collider: progress, options and physics

Description: The Superconducting Super Collider (SSC) has been given high priority by the high energy physics community. Various aspects of the project - physics motivation, accelerator design, siting considerations - are discussed here. The project is moving rapidly and parts of this discussion have been updated to reflect the vast amount of work that has gone into the SSC since the conference.
Date: October 18, 1984
Creator: Diebold, R.
Item Type: Refine your search to only Article
Back to Top of Screen