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Adjustable rare earth quadrupole drift tube magnets

Description: A prototype permanent-magnet drift tube quadrupole with adjustable field strength has been constructed and tested. The magnet uses iron pole pieces to provide the required field shape along with rare earth permanent-magnet material (samarium cobalt) to energize the magnet. A unique feature of the configuration is the adjustability of the field, accomplished by rotating the outer rings consisting of permanent magnets and iron. In contrast with a previous prototype magnet, this new design uses ba… more
Date: March 1, 1987
Creator: Feinberg, B.; Tanabe, J.; Halbach, K.; Koehler, G. & Green, M.I.
Item Type: Refine your search to only Article
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An advanced hadron facility: A combined kaon factory and cold-neutron source

Description: A design concept is presented for an advanced hadron facility consisting of a combined kaon factory and second generation spallation source. Our proposed facility consists of a 1.2 GeV superconducting H/sup -/ linac to bring the LAMPF energy up to 2 GeV, a multi-ring 2 GeV compressor, a shared cold-neutron and stopped-pion neutrino source, a 60 GeV 25 ..mu..Amp 6 Hz proton synchrotron, and kaon and proton experimental areas. We discuss the considerations which led to this design concept. We sum… more
Date: March 16, 1987
Creator: Thiessen, H.A.
Item Type: Refine your search to only Article
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Advanced LMFBR fuel cladding susceptability to stress corrosion due to reprocessing impurities

Description: The potential degradation of LMFBR fuel cladding alloys by chlorides, when used in metallic fuel systems, was evaluated. The alloys tested were D-9 and HT-9 stainless steels, austenitic and ferritic alloys respectively. These two alloys were tested in parallel with and their performance compared to the austenitic stainless steel Type 316. All alloys were tested for 7400 hours in a stress rupture environment with chloride exposure at either 550/degree/C 650/degree/C. None of the alloys tested we… more
Date: March 1, 1987
Creator: Henslee, S. P.
Item Type: Refine your search to only Report
open access

An Algebraic Theory of Program Specification and Correctness Using Symmetry Operations

Description: This report applies some methods from the theory of group representation to the questions of program specification and knowledge about programs. The theory is that of a program as a transformation on a state space, and operators commuting with that transformation being symmetries of the program, means of specifying properties, and generators of program invariants. Because a program can simulate a system in the real world, there is a corresponding model of engineered artifacts, that is, manmade … more
Date: March 1987
Creator: Gabriel, John R.
Item Type: Refine your search to only Report
open access

Annual environmental monitoring report, January-December 1986

Description: Environmental monitoring and remedial actions at the Stanford Linear Accelerator Center are reported. The local climate, site geology, site water usage, land use, and demography are briefly reviewed. Among the activities reported are waste solvent tank remedial action and testing of underground storage tanks. The SLAC Linear Collider Project is discussed insofar as it impacts the environment. Neutron radiation dose to the surrounding environment and radioactive effluents are reported. (LEW)
Date: March 1, 1987
Item Type: Refine your search to only Report
open access

Antiproton acceleration in the Fermilab Main Ring and Tevatron

Description: The operation of the Fermilab Main Ring and Tevatron rf systems for colliding beams physics is discussed. The changes in the rf feedback system required for the accelration of antiprotons, and the methods for achieving proper transfer of both protons and antiprotons are described. Data on acceleration and transfer efficiencies are presented.
Date: March 1, 1987
Creator: Martin, P.; Dinkel, J.; Ducar, R.; Kerns, C.; Kerns, Q.; Meisner, K. et al.
Item Type: Refine your search to only Article
open access

An applications guide to vehicle SNM monitors

Description: The applications guide introduces its readers to the vehicle special nuclear material (SNM) monitors that are becoming part of safeguards and security measures for nuclear material control at DOE facilities. Building on the foundation provided by an applications guide to pedestrian SNM monitors published in 1986 and a technical report on vehicle monitoring published in 1982, the guide provides an overview of vehicle monitoring in Part 1, a discussion of technical aspects of vehicle monitoring i… more
Date: March 1, 1987
Creator: Fehlau, P. E.
Item Type: Refine your search to only Report
open access

Assessment of the proposed decontamination and waste treatment facility at LLNL

Description: To provide a centralized decontamination and waste treatment facility (DWTF) at LLNL, the construction of a new installation has been planned. Objectives for this new facility were to replace obsolete, structurally and environmentally sub-marginal liquid and solid waste process facilities and decontamination facility and to bring these facilities into compliance with existing federal, state and local regulations as well as DOE orders. In a previous study, SAIC conducted a preliminary review and… more
Date: March 25, 1987
Creator: Cohen, J.J.
Item Type: Refine your search to only Report
open access

Atmospheric Fluidized-Bed Cogeneration Air Heater Experiment : 1000-h Laboratory Test A

Description: A laboratory test program is described to evaluate the corrosion behavior of several metallic alloys, coatings, claddings, and weldments in support of the atmospheric fluidized-bed air heater experiment. Results are presented from the first 1000-h test (Test A) conducted at metal and gas temperatures of 871 C and 899 C, respectively. Detailed information is also presented on the corrosion scale morphologies, scale compositions and thicknesses, intergranular penetration of the substrate material… more
Date: March 1987
Creator: Natesan, K. & Podolski, W. F.
Item Type: Refine your search to only Report
open access

Atomic physics experiments with photon and ion beams

Description: The experiments investigated the feasibility of: (1) producing multiply-charged argon ions (up to 7+) at very low energies in quantities sufficient for experimental purposes, (2) using ion trap techniques for further study of the ions and repetitive photoionization to achieve higher charge states, and (3) using a VUV spectrometer to study fluorescent radiation emitted from the ions.
Date: March 1, 1987
Creator: Jones, K. W.; Johnson, B. M. & Meron, M.
Item Type: Refine your search to only Article
open access

Atomic power in space: A history

Description: ''Atomic Power in Space,'' a history of the Space Isotope Power Program of the United States, covers the period from the program's inception in the mid-1950s through 1982. Written in non-technical language, the history is addressed to both the general public and those more specialized in nuclear and space technologies. 19 figs., 3 tabs.
Date: March 1, 1987
Item Type: Refine your search to only Report
open access

Automated emittance measurements in the SLC

Description: The emittance of the SLC beam is determined from measurements of the beam width on a profile monitor as a quadrupole field is varied. An automated system has been developed to allow this to be done rapidly and accurately. The image on a fluorescent screen profile monitor (resolution about 20 ..mu..m) is read out through an electronic interface and digitized by a transient recorder. A high level software package has been developed to set up the hardware for the measurements, acquire data, fit th… more
Date: March 1, 1987
Creator: Ross, M.C.; Phinney, N.; Quickfall, G.; Shoaee, H. & Sheppard, J.C.
Item Type: Refine your search to only Article
open access

Baryon Resonances Without Quarks: A Chiral Soliton Perspective

Description: In many processes involving low momentum transfer it is fruitful to regard the nucleon as a soliton or ''monopole-like'' configuration of the pion field. In particular, within this framework it is possible to obtain detailed predictions for pion-nucleon scattering amplitudes and for properties of baryon resonances. One can also derive model-independent linear relations between scattering amplitudes, such as ..pi..N and anti KN. A short survey of some recent results is given, including compariso… more
Date: March 1, 1987
Creator: Karliner, Marek
Item Type: Refine your search to only Article
open access

Basic studies of III-V high-efficiency cell components: Annual subcontract report, 15 August 1985-14 August 1986

Description: This report documents research on the fabrication and photovoltaic characterization of the basic building blocks of III-V cells: the pn junction, the pn heterojunction, the isotype (p-p and n-n) heterojunction, and graded-gap semiconductors. The goal of the project is to maximize cell performance by characterizing the electrical properties of high-efficiency cell components. Other goals are to demonstrate new cell structures fabricated by molecular beam epitaxy (MBE), develop measurement techni… more
Date: March 1, 1987
Creator: Lundstrom, M. S.; Melloch, M. R.; Kyono, C. S.; McMahon, C. P.; Noren, R. E. & Rancour, D. P.
Item Type: Refine your search to only Report
open access

The Beam Line X NdFe-steel hybrid wiggler for SSRL

Description: A wiggler magnet with 15 periods, each 12.85 cm long, which achieves 1.40 T at a 2.1 cm gap (2.26T at 0.8 cm) has been designed and is now in fabrication at LBL. This wiggler will be the radiation source of the high intensity synchrotron radiation beam line for the Beam Line X PRT facility at SSRL. The magnet utilizes Neodymium-Iron (NdFe) material and Vanadium Permendur (steel) in the hybrid configuration to achieve simultaneously a high magnetic field and short period. Magnetic field adjustme… more
Date: March 10, 1987
Creator: Hoyer, E.; Halbach, K.; Humphries, D.; Marks, S.; Plate, D.; Shuman, D. et al.
Item Type: Refine your search to only Article
open access

The Bevalac Upgrade Project

Description: This paper describes a proposed upgrade of the Bevalac accelerator complex in which the present Bevatron is replaced with a modern, strong-focusing 17 T-m synchrotron. This new ring is designed to accelerate all ions throughout the periodic table with intensities 100 to 1000 times higher than the present Bevatron. It will also provide a substantially improved beam spill structure and will reduce operating costs. A fast extraction capability can be used to inject a future heavy ion storage ring.… more
Date: March 1, 1987
Creator: Alonso, J. R.; Dwinell, R. D.; Feinberg, B.; Frias, R.; Gough, R. A.; Howard, D. R. et al.
Item Type: Refine your search to only Article
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The Bevatron liquid nitrogen circulation system

Description: A nitrogen liquefier and computer controlled valving system have been added to the Bevatron cryoliner vacuum system to cut operating costs by reducing liquid nitrogen consumption. The computer and interface electronic systems, which control the temperatures of twenty-eight liquid nitrogen circuits, have been chosen and designed to operate in the Bevatron's pulsating magnetic field. The nitrogen exhaust is routed back to a liquefier, of about five kilowatt capacity, liquefied, and rerouted throu… more
Date: March 1, 1987
Creator: Hunt, D. & Stover, G.
Item Type: Refine your search to only Article
open access

The Border war on drugs

Description: A report on smuggling of illegal drugs into the United States is a problem of serious proportions. The three major drugs of foreign source—cocaine, heroin, and marijuana-are the products traded by an enormous criminal enterprise whose retail sales total approximately $50 billion annually. Federal efforts to stop or deter international narcotics trafficking have met with only limited success.
Date: March 1987
Creator: United States. Congress. Office of Technology Assessment.
Item Type: Refine your search to only Report
open access

Bounds on neutrino masses from particle physics and cosmology

Description: We study the constraints imposed on the masses of nu/sub e/, nu/sub ..mu../ and nu/sub tau/ on the basis of direct experimental bounds, cosmological bounds, theoretical calculations of neutrino decay rates, experimental bounds on related decays of charged leptons and the structure of neutrino mass matrices in the ''see-saw'' mechanism. We consider standard model amplitudes as well as contributions from all ''beyond standard'' models. Assuming a simple ''reasonable'' form of the see-saw mechanis… more
Date: March 1, 1987
Creator: Nir, Y.
Item Type: Refine your search to only Article
open access

Brightness and coherence of radiation from undulators and high-gain free electron lasers

Description: The purpose of this paper is to review the radiation characteristics of undulators and high-gain free electron lasers (FELs). The topics covered are: a phase-space method in wave optics and synchrotron radiation, coherence from the phase-space point of view, discussions of undulator performances in next-generation synchrotron radiation facility and the characteristics of the high-gain FELs and their performances. (LSP)
Date: March 1, 1987
Creator: Kim, Kwang-Je
Item Type: Refine your search to only Article
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