Accelerating Uranium in RHIC – II Surviving the AGS Vacuum (open access)

Accelerating Uranium in RHIC – II Surviving the AGS Vacuum

This Report is about the description of the survival rate of charge 90+ uranium ions in the AGS vacuum.
Date: May 5, 1988
Creator: J., Rhoades-Brown M. & Gould, H.
Object Type: Report
System: The UNT Digital Library
Ambipolar potential formation in TMX (open access)

Ambipolar potential formation in TMX

TMX experimental data on ambipolar potential control and on the accompanying electrostatic confinement are reported. New results on the radial dependence of the central-cell confining potential are given. Radial and axial particle losses as well as scaling of the central-cell axial confinement are discussed.
Date: May 5, 1981
Creator: Correl, D. L.; Allen, S. L. & Casper, T. A.
Object Type: Report
System: The UNT Digital Library
Ambipolar potential formation in TMX (open access)

Ambipolar potential formation in TMX

TMX experimental data on ambipolar potential control and on the accompanying electrostatic confinement are reported. New results on the radial dependence of the central-cell confining potential are given. Radial and axial particle losses as well as scaling of the central-cell axial confinement are discussed.
Date: May 5, 1981
Creator: Correll, D. L.; Allen, S. L. & Casper, T. A.
Object Type: Article
System: The UNT Digital Library
Application of digital image analysis techniques to the Geyser's data and topography (open access)

Application of digital image analysis techniques to the Geyser's data and topography

This paper describes the results of digital image analysis and techniques applied to acoustic sounder data and topographic relief in the Geyser's region. The two dimensional fast Fourier transform (2DFFT) represents the spacial variability of a photographic image. The spacial variability of topography in complex terrain can be represented in this way and insight into degree of complexity and dominating spacial wavelengths can be gained. This was performed for a 16 km square digitized topographic map of the Geyser's region with 63.5 m resolution. It was also of interest to compare facsimile recordings of acoustic sounder data to optical turbulence measurements.
Date: May 5, 1980
Creator: Porch, W.M.
Object Type: Article
System: The UNT Digital Library
Axicell MFTF-B superconducting-magnet system (open access)

Axicell MFTF-B superconducting-magnet system

The Axicell MFTF-B magnet system will provide the field environment necessary for tandem mirror plasma physics investigation with thermal barriers. The performance of the device will stimulate DT to achieve energy break-even plasma conditions. Operation will be with deuterium only. There will be 24 superconducting coils consisting of 2 sets of yin-yang pairs, 14 central-cell solenoids, 2 sets of axicell mirror-coil pairs, and 2 transition coils between the axicell mirror coil-pairs and the yin-yang coils. This paper describes the progress in the design and construction of MFTF-B Superconducting-Magnet System.
Date: May 5, 1982
Creator: Wang, S. T.; Bulmer, R.; Hanson, C.; Hinkle, R.; Kozman, T.; Shimer, D. et al.
Object Type: Article
System: The UNT Digital Library
Central cell confinement in MFTF-B (open access)

Central cell confinement in MFTF-B

The point code TANDEM has been used to survey the range of plasma parameters which can be attained in MFTF-B. The code solves for the electron and ion densities and temperatures in the central cell, yin-yang, barrier, and A-cell regions as well as the plasma potential in each region. In these studies, the A-cell sloshing ion beams were fixed while the neutral beams in the yin-yang and central cell, the gas feed in the central cell, and the applied ECRH power ..beta.., central cell ion density and temperature, and the confining potential are discussed.
Date: May 5, 1981
Creator: Jong, R.A.
Object Type: Article
System: The UNT Digital Library
Design of the Target Fabrication Tritium Laboratory (open access)

Design of the Target Fabrication Tritium Laboratory

The design of the Target Fabrication Tritium Laboratory for deuterium-tritium fuel processing for laser fusion targets has been accomplished with the intent of providing redundant safeguard systems. The design of the tritium laboratory is based on a combination of tritium handling techniques that are currently used by experienced laboratories. A description of the laboratory in terms of its interrelated processing systems is presented to provide an understanding of the design features for safe operation.
Date: May 5, 1982
Creator: Sherohman, J. W.; Roberts, D. H. & Levine, B. H.
Object Type: Report
System: The UNT Digital Library
Effects due to the large ambipolar potential in TMX (open access)

Effects due to the large ambipolar potential in TMX

The large potentials and potential gradients in tandem mirrors have several effects. Some of these are discussed, together with supporting data from TMX. These include: azimuthal averaging by the E x B rotation, reduction of radial outward drifts (from high order multipoles) by the rapid E x B azimuthal velocity, neoclassical-resonant diffusion, Joule heating of central cell ions due to non-ambipolar transport in the radial electric field, low frequency instabilities, and differences between the details of the electron behavior and theory.
Date: May 5, 1981
Creator: Hooper, E. B. Jr.; Allen, S. L. & Coakley, P.
Object Type: Article
System: The UNT Digital Library
The excitation function for /sup 48/V from tritons on natural titanium (open access)

The excitation function for /sup 48/V from tritons on natural titanium

Natural titanium is used as a diagnostic charged particle detector in nuclear device tests making use of the proton and deuteron reactions, which produce vanadium 48 as a product. The presence of tritons in the reaction environment can also produce vanadium 48 from triton reactions on titanium 3, titanium 47 and titanium 48. Triton reaction cross sections for titanium have been measured so that corrections to the proton and deuteron diagnostic data can be accurately calculated. These measurements were made using the Van de Graaff at the Los Alamos National Laboratory.
Date: May 5, 1987
Creator: West, H. I., Jr.; Lanier, R.G.; Mustafa, M.G. & O'Brien, H.
Object Type: Report
System: The UNT Digital Library
Hydrologic test system for fracture flow studies in crystalline rock (open access)

Hydrologic test system for fracture flow studies in crystalline rock

A hydrologic test system has been designed to measure the intrinsic permeabilities of individual fractures in crystalline rock. This system is used to conduct constant pressure-declining flow rate and pressure pulse hydraulic tests. The system is composed of four distinct units: (1) the Packer System, (2) Injection system, (3) Collection System, and (4) Electronic Data Acquisition System. The apparatus is built in modules so it can be easily transported and re-assembled. It is also designed to operate over a wide range of pressures (0 to 300 psig) and flow rates (0.2 to 1.0 gal/min). This system has proved extremely effective and versatile in its use at the Climax Facility, Nevada Test Site.
Date: May 5, 1982
Creator: Raber, E; Lord, D. & Burklund, P.
Object Type: Report
System: The UNT Digital Library
Low-temperature hydrothermal resource evaluation (open access)

Low-temperature hydrothermal resource evaluation

The objectives of testing low-temperature hydrothermal wells are to characterize well response to production (injection), determine resource characteristics and project reservoir longevity. Testing procedures and analysis techniques differ in some respects from proven procedures in the oil and gas and ground water fields. Some basic definitions and standard techniques necessary for the evaluation of a fluid resource in an intergranular permeable reservoir are presented. Problems particular to a non-ideal thermal resource are outlined and some analytical techniques are discussed.
Date: May 5, 1980
Creator: Goldman, D.
Object Type: Article
System: The UNT Digital Library
Recent developments in nuclear reaction theories and calculations (open access)

Recent developments in nuclear reaction theories and calculations

A brief review is given of some recent developments in the fields of optical model potentials; level densities; and statistical model, precompound, and direct reaction codes and calculations. Significant developments have occurred in all of these fields since the 1977 Conference on Neutron Cross Sections, which will greatly enhance the ability to calculate high-energy neutron-induced reaction cross sections in the next few years. 11 figures, 3 tables.
Date: May 5, 1980
Creator: Gardner, D. G.
Object Type: Article
System: The UNT Digital Library
A Search for New Leptons with Heavy Neutrinos in e/sup +/e/sup -/ Annihilation at. sqrt. s = 29 GeV. [None] (open access)

A Search for New Leptons with Heavy Neutrinos in e/sup +/e/sup -/ Annihilation at. sqrt. s = 29 GeV. [None]

This thesis describes the results of a search for new leptons with associated heavy neutrinos. The search uses 68.1 pb/sup /minus/1/ of data taken with the TPC2..gamma.. detector at the PEP storage ring. New lepton pairs with charged lepton masses m/sub L/ < 12 GeV and mass differences in the approximate range 0.4 GeV < m/sub L/ /minus/ m/sub/nu/L/ < 2.5 GeV are excluded at the 99% confidence level. Results are also given of a study of search techniques for the region m/sub L/ < 12 GeV, m/sub L/ /minus/ m/sub ..nu..L/ < 0.4 GeV.
Date: May 5, 1988
Creator: Mathis, L. G.
Object Type: Report
System: The UNT Digital Library
Testing of the MFTF magnets (open access)

Testing of the MFTF magnets

This paper describes the cooldown and testing of the first yin-yang magnet for the Mirror Fusion Test Facility. The introduction describes the superconducting magnet; the rest of the paper explains the tests prior to and including magnet cooldown and final acceptance testing. The MFTF (originally MX) was proposed in 1976 and the project was funded for construction start in October 1977. Construction of the first large superconducting magnet set was completed in May 1981 and testing started shortly thereafter. The acceptance test procedures were reviewed in May 1981 and the cooldown and final acceptance test were done by the end of February 1982. During this acceptance testing the magnet achieved its full design current and field.
Date: May 5, 1982
Creator: Kozman, T.A.; Chang, Y. & Dalder, E.N.C.
Object Type: Article
System: The UNT Digital Library
Tevatron B0 low beta tuning report (open access)

Tevatron B0 low beta tuning report

A detailed study of the low beta insertion for the B0 experimental area has been carried out and is described below. This insertion is similar to the Type C low beta previously report, anti p Note 169, although some changes have been made to the quadrupole lengths and positions. This insertion is designated Type E. The purpose of the study was to see if it is possible to turn the insertion on in a smooth and continuous manner and tune the insertion to a value of ..beta..* of less than one meter while maintaining the overall tune of the j Tevatron to a constant value. This was found to be possible. An examination of chromaticity corrections for the Tevatron with the low beta insertion on in various configurations was also undertaken.
Date: May 5, 1982
Creator: Johnson, D. E.
Object Type: Report
System: The UNT Digital Library