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Design of a pulsed switching magnet for the Bevalac

Description: The design and construction of a water cooled, pulsed, laminated core dipole magnet which has recently been installed at the Bevalac is described. This new, energy efficient magnet was funded by the DOE In-House Energy Management Program. The magnet has been specifically designed for maximum efficiency in power utilization and has replaced two dc powered magnets in the Bevalac switchyard. It will reduce energy usage by 747 MWh/yr, and it provides the capability of pulse-to-pulse switching in 0.… more
Date: March 1, 1989
Creator: Abbott, S.; Alonso, J.; Brown, J.; Kalnins, J.; Krebs, G. & Reimers, R.
Partner: UNT Libraries Government Documents Department
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Mechanical design of a large bore quadrupole triplet magnet

Description: The mechanical design and construction of a 1 meter bore, low gradient quadrupole triplet is described. The magnet will be used for focussing a proton beam in accelerator studies of neutral particle at the Los Alamos National Laboratory. A significant feature of this magnet design is the precision location of the coil conductors within the steel yoke tube. Each of the quadrupole coils have been fabricated from water cooled aluminum conductor, wound in a cosine 2-theta geometry. The conductor bu… more
Date: March 1, 1987
Creator: Abbott, S.; Caylor, R.; Fong, E. & Tanabe, J.
Partner: UNT Libraries Government Documents Department
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Design of an integrally formed RFQ

Description: The design, construction and testing of a 410 MHz RFQ utilizing a new mechanical design concept has been completed at LBL. The RFQ is planned to be used at the Bevatron for injecting protons into the present heavy ion linac. The integral vane-cavity construction is a significant and unique feature of this RFQ design, wherein four walls with integral vanes are assembled to form the RFQ geometry. This design concept provides the capability of achieving precision vane alignment in minimal assembly… more
Date: March 1, 1989
Creator: Abbott, S.; Caylor, R.; Gough, R.; Howard, D.; MacGill, R. & Staples, J.
Partner: UNT Libraries Government Documents Department
open access

Mechanical design of a heavy-ion RFQ

Description: The mechanical design and construction of a 199.3 MHz heavy ion RFQ for charge states q/A as low as 0.14 is described. The vane supports and positioning adjustments are significant features of this design. They provide the capability of achieving the precision vane alignment required. The maximum difference between calculated and measured apertures between the vanes is 0.0035 inches, and the average difference is 0.0010 inches. Various important aspects of the design and construction including … more
Date: March 1, 1983
Creator: Abbott, S.; MacGill, R. & Yourd, R.
Partner: UNT Libraries Government Documents Department
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Experience in using workstations as hosts in an accelerator control environment

Description: A new control system has been used for light ion acceleration at the Alternating Gradient Synchrotron (AGS). The control system uses Apollo workstations in the dual role of console hardware computer and controls system host. It has been found that having a powerful dedicated CPU with a demand paging virtual memory OS featuring strong interprocess communication, mapped memory shared files, shared code, and multi-window capabilities, allows us to provide an efficient operation environment in whic… more
Date: March 1, 1987
Creator: Abola, A.; Casella, R.; Clifford, T.; Hoff, L.; Katz, R.; Kennell, S. et al.
Partner: UNT Libraries Government Documents Department
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Finite Temperature Instability for Compactification

Description: We consider finite temperature effects upon theories with extra dimensions compactified via vacuum stress energy (Casimir) effects. For sufficiently high temperature, a static configuration for the internal space is impossible. At somewhat lower temperatures, there is an instability due to thermal fluctuations of radius of the compact dimensions. For both cases, the Universe can evolve to a de Sitter-like expansion of all dimensions. Stability to late times constrains the initial entropy of the… more
Date: March 1, 1986
Creator: Accetta, F. S. & Kolb, E. W.
Partner: UNT Libraries Government Documents Department
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Stable Compactifications

Description: We show that compactifications of theories with extra dimensions are unstable if due to monopole configurations of an antisymmetric tensor field balanced against one-loop Casimir corrections. In the case of ten dimensional supergravity, it is possible, at least for a portion of the phase space, to achieve a stable compactification without fine-tuning by including the contribution of fermionic condensates to the monopole configurations. 23 refs., 2 figs.
Date: March 1, 1986
Creator: Accetta, F. S.; Gleiser, M.; Holman, R. & Kolb, E. W.
Partner: UNT Libraries Government Documents Department
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Small Sample Assay Station users guide

Description: A system for acquisition of delayed neutron data, based on an LSI-11 with 28 K words of memory, is described. Hardware features are a six-channel scaler and level sensor to determine the state of the experiment; and normal peripherals include dual floppy-disk drive, line printer, and CRT terminal. The software for experiment control and for the analysis of data is presented. The protocol for assays that optimally utilize the system is suggested.
Date: March 1, 1981
Creator: Adams, E.L.; Bourret, S. & Meier, M.M.
Partner: UNT Libraries Government Documents Department
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Action Description Memorandum for the FY 1989 Line Item: Environmental, Safety and Health Upgrades, Phase 2

Description: This ADM documents the evaluation of the potential environmental impact hazards from the Environmental, Safety and Health Upgrades, Phase 2, project. Environmental, Safety and Health Upgrades, Phase 2, project is a $6,500,000 Line Item project for FY 1989. ES and H Phase 2, is a portion of a continuing effort to protect the environment, neighbors and employees from any adverse effects caused by the development and production missions of EG and G Mound Applied Technologies. The three parts of ES… more
Date: March 1, 1989
Creator: Adams, Frank S.; Hunter, Michael R. & Anderson, Carol R.
Partner: UNT Libraries Government Documents Department
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Sodium oxide and uranium oxide aerosol experiments: NSPP Tests 106-108 and Tests 204-207, data record report

Description: This data record report describes three sodium oxide aerosol tests and four uranium oxide aerosol tests conducted in the Nuclear Safety Pilot Plant project at Oak Ridge National Laboratory. The goal of this project is to establish the validity (or level of conservatism) of the aerosol behavioral code, HAARM-3, and follow-on codes under development at the Battelle Columbus Laboratories for the US Nuclear Regulatory Commission. Descriptions of the seven tests with tables and graphs summarizing th… more
Date: March 1, 1981
Creator: Adams, R. E.; Kress, T. S. & Tobias, M. L.
Partner: UNT Libraries Government Documents Department
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Environmental Transport Division. 1980 report

Description: Aquatic, atmospheric, and terrestrial studies and instrumentation developments are described in a series of articles. More details about specific studies are given in publications listed at the end of the report.
Date: March 1, 1981
Creator: Adams, S.E.; Fliermans, C.B.; Garrett, A.J. & Halverson, J.E.
Partner: UNT Libraries Government Documents Department
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Some concepts of favorability for world-class-type uranium deposits in the northeastern United States

Description: An account is given of concepts of favorability of geologic environments in the eastern United States for uranium deposits of several major types existing elsewhere in the world. The purpose is to convey some initial ideas about the interrelationships of the geology of the eastern United States and the geologic settings of certain of these world-class deposits. The study and report include consideration of uranium deposits other than those generally manifesting the geologic, geochemical and gen… more
Date: March 1, 1981
Creator: Adler, H.H.
Partner: UNT Libraries Government Documents Department
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Beam-based alignment technique for the SLC (Stanford Linear Collider) linac

Description: Misalignment of quadrupole magnets and beam position monitors (BPMs) in the linac of the SLAC Linear Collider (SLC) cause the electron and positron beams to be steered off-center in the disk-loaded waveguide accelerator structures. Off-center beams produce wakefields which limit the SLC performance at high beam intensities by causing emittance growth. Here, we present a general method for simultaneously determining quadrupole magnet and BPM offsets using beam trajectory measurements. Results fr… more
Date: March 1, 1989
Creator: Adolphsen, C. E.; Lavine, T. L.; Atwood, W. B.; Himel, T. M.; Lee, M. J.; Mattison, T. S. et al.
Partner: UNT Libraries Government Documents Department
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Report to users of ATLAS (Argonne Tandem-Line Accelerator System)

Description: The operation and development of ATLAS are reported, including accelerator improvements. Particularly noted is an upgrade to extend the mass range of projectiles up to uranium and to increase the beam intensity by at least two orders of magnitude for all ions. Meetings are discussed, particularly of the Program Advisory Committee and the User Group Executive Committee. Some basic information is provided for users planning to run experiments at ATLAS, including a table of beams available. The da… more
Date: March 1, 1987
Creator: Ahmad, I. & Glagola, B. (eds.)
Partner: UNT Libraries Government Documents Department
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Charged hadron production in e/sup /+//e/sup /-// annihilation at. sqrt. s = 29 GeV

Description: We have used data from the Time Projection Chamber at the SLAC storage ring PEP to study the inclusive production of charged hadrons in e/sup /+//e/sup /-// annihilation at a center of mass energy of 29 GeV. Charged particles were identified by simultaneous dEdx and momentum measurements. We present cross sections and particle fractions for ..pi../sup/plus minus//, k/sup + -/, and p(/ovr/p//) as a function of energy, momentum, rapidity, and transverse momentum. We compare the predictions of var… more
Date: March 1, 1988
Creator: Aihara, H.; Alston-Garnjost, M.; Avery, R. E.; Barbaro-Galtieri, A.; Barker, A. R.; Barnett, B. A. et al.
Partner: UNT Libraries Government Documents Department
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Cataract production in mice by heavy charged particles

Description: The cataractogenic effects of heavy charged particles have been evaluated in mice in relation to dose and ionization density (LET/sub infinity/). The study was undertaken due to the high potential for eye exposures to HZE particles among SPS personnel working in outer space. This has made it imperative that the relative biological effectiveness (RBE) in relation to LET/sub infinity/ for various particles be defined so that appropriate quality factors (Q) could be assigned for estimation of risk… more
Date: March 1, 1981
Creator: Ainsworth, E.H.; Jose, J.; Yang, V.V. & Barker, M.E.
Partner: UNT Libraries Government Documents Department
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Regenerative Process for Desulfurization of High Temperature Combustion and Fuel Gases. Progress Report No. 14, October 1-December 31, 1979

Description: The characteristics of Portland Type III cement (PC III) as a potential sorbent for use in a regenerative process for desulfurization of coal in fluidized-bed combustion were examined. The sulfation rates for PC III + 5% amorphous SiO/sub 2/ at temperatures between 860 and 1100/sup 0/C and at 1 atm were studied thermogravimetrically, using a simulated combustion gas mixture containing 0.25% SO/sub 2/. The sulfation rates were found to be independent of temperature between 950 and 1050/sup 0/C. … more
Date: March 1, 1980
Creator: Albanese, A. S. & Sethi, D. S.
Partner: UNT Libraries Government Documents Department
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Validation of the materials-process-product model (coal SNG). [Estimating method for comparing processes, changing assumptions and technology assessment]

Description: The use of coal as a source of high Btu gas is currently viewed as one possible means of supplementing dwindling natural gas supplies. While certain coal gasification processes have demonstrated technical feasibility, much uncertainty and inconsistency remains regarding the capital and operating costs of large scale coal conversion facilities; cost estimates may vary by as much as 50%. Studies conducted for the American Gas Association (AGA) and US Energy Research and Development Administration… more
Date: March 1, 1980
Creator: Albanese, A.; Bhagat, N.; Friend, L.; Lamontagne, J.; Pouder, R. & Vinjamuri, G.
Partner: UNT Libraries Government Documents Department
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A MARKOV MODEL OF THE REPAIR-MISREPAIR PROCESS OF CELL SURVIVAL

Description: The repair-misrepair model of cell survival is formulated mathematically as a Markov process. The nucleus of a cell is described by the status of the lesions that resulted from exposure to radiation. At any time each of these lesions is either unrepaired, misrepaired, or eurepaired. A system of coupled differential equations for the probabilities of zero, one, two, ... unrepaired lesions is derived. The probability of survival of a cell is the probability of zero unrepaired or misrepaired lesio… more
Date: March 1, 1981
Creator: Albright, Norman W.
Partner: UNT Libraries Government Documents Department
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Incomplete and complete fusion in intermediate energy heavy ion reactions

Description: The yields, angular distributions and differential range spectra have been measured for individual target residues from the interaction of 8.5 MeV/A /sup 16/O, 19 MeV/A /sup 16/O, 35 MeV/A /sup 12/C and 86 MeV/A /sup 12/C with /sup 154/Sm. From the measured data, fragment isobaric yields and velocity spectra were deduced. The results are compared to the sum rule model of Wilczyski et al. and the nuclear firestreak model. 18 references.
Date: March 1, 1984
Creator: Aleklett, K.; Loveland, W.; Sugihara, T. T.; Morrissey, D. J.; Wenxin, L.; Kot, W. et al.
Partner: UNT Libraries Government Documents Department
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Review of the PASNY systems interaction study

Description: The objective of this review is to evaluate and make recommendations on the Systems Interaction (SI) methodology proposed by the Power Authority of the State of New York (PASNY) for application to Indian Point No. 3 (IP-3).
Date: March 1, 1982
Creator: Alesso, H.P.
Partner: UNT Libraries Government Documents Department
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The Mark II Vertex Drift Chamber

Description: We have completed constructing and begun operating the Mark II Drift Chamber Vertex Detector. The chamber, based on a modified jet cell design, achieves 30 {mu}m spatial resolution and <1000 {mu}m track-pair resolution in pressurized CO{sub 2} gas mixtures. Special emphasis has been placed on controlling systematic errors including the use of novel construction techniques which permit accurate wire placement. Chamber performance has been studied with cosmic ray tracks collected with the chamber… more
Date: March 1, 1989
Creator: Alexander, J. P.; Baggs, R.; Fujino, D.; Hayes, K.; Hoard, C.; Hower, N. et al.
Partner: UNT Libraries Government Documents Department
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