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New generation of arc and arc filament power supplies for pulsed neutral beams

Description: The new Tandem Mirror Experiment (TMX) facility at LLL requires that neutral beams operate for pulse lengths between 25 and 100 ms. The inevitable increase in cost over the present 12-ms pulse length capability dictated that a more economical alternative to the pulse forming networks and the transformer-type arc filament power supplies currently in use be found. A study of the various alternatives and design requirements revealed that battery banks are the most economical alternative. The therm… more
Date: October 3, 1977
Creator: Santamaria, G.T.
Partner: UNT Libraries Government Documents Department
open access

Numerical methods for laser fusion

Description: The LASNEX computer code was developed to study the many interrelated physical processes important in the effort to achieve laser initiated fusion. It has been used to calculate the results of numerous laser plasma experiments and to design targets and determine desirable laser pulse characteristics for future experiments. Some processes, such as hydrodynamics, are well formulated in fundamental equations and can be solved with high accuracy by sophisticated numerical methods. Other processes, … more
Date: November 3, 1977
Creator: Zimmerman, G.B.
Partner: UNT Libraries Government Documents Department
open access

Engineering of beam direct conversion for a 120-kV, 1-MW ion beam

Description: Practical systems for beam direct conversion are required to recover the energy from ion beams at high efficiency and at very high beam power densities in the environment of a high-power, neutral-injection system. Such an experiment is now in progress using a 120-kV beam with a maximum total current of 20 A. After neutralization, the H/sup +/ component to be recovered will have a power of approximately 1 MW. A system testing these concepts has been designed and tested at 15 kV, 2 kW in preparat… more
Date: October 3, 1977
Creator: Barr, W. L.; Doggett, J. N.; Hamilton, G. W.; Kinney, J. D. & Moir, R. W.
Partner: UNT Libraries Government Documents Department
open access

Propagation of a heavy ion beam in gas-filled reactor

Description: A heavy ion beam traversing a gas-filled reactor is stripped of its electrons along its path. The propagation of the stripping beam with possible associated instabilities has been investigated.
Date: November 3, 1977
Creator: Yu, S. S.; Buchanan, H. L.; Chambers, F. W. & Lee, E. P.
Partner: UNT Libraries Government Documents Department
open access

Atomic data needs for beam transport in gas

Description: Determination of the parameters Z/sub eff/, electrical conductivity, plasma density, and the plasma temperature is essential in the study of heavy ion beam transport in gas. The calculation of these parameters require input from atomic physics. This note is an attempt to make these needs known to atomic physicists.
Date: November 3, 1977
Creator: Yu, S. S.
Partner: UNT Libraries Government Documents Department
open access

Acceleration systems for heavy-ion beams for inertial confinement fusion

Description: The requirements for a heavy-ion demonstration experiment to achieve useful electric power generation through inertial confinement fusion are discussed. (MOW)
Date: October 3, 1977
Creator: Faltens, A.; Judd, D.L. & Keefe, D.
Partner: UNT Libraries Government Documents Department
open access

Cassette blanket and vacuum building: key elements in fusion reactor maintenance

Description: The integration of two concepts important to fusion power reactors is discussed. The first concept is the vacuum building which improves upon the current fusion reactor designs. The second concept, the use of the cassette blanket within the vacuum building environment, introduces four major improvements in blanket design: cassette blanket module, zoning concept, rectangular blanket concept, and internal tritium recovery. (MHR)
Date: October 3, 1977
Creator: Werner, R.W.
Partner: UNT Libraries Government Documents Department
open access

Quasi-static drift-tube accelerating structures for low-speed heavy ions

Description: The major attractions of the pulsed drift-tubes are that they are non-resonant structures and that they appear suitable for accelerating a very high current bunch at low energies. The mechanical tolerances of the non-resonant structure are very loose and the cost per meter should be low; the cost of the transport system is expected to be the major cost. The pulse power modulators used to drive the drift-tubes are inexpensive compared to r.f. sources with equivalent peak-power. The longitudinal … more
Date: November 3, 1977
Creator: Faltens, A. & Keefe, D.
Partner: UNT Libraries Government Documents Department
open access

Structural support system for a superconducting magnet coil

Description: The purpose of the ESCAR (Experimental Superconducting Accelerator Ring) project, now under way at the Lawrence Berkeley Laboratory, is to gather data and experience in the design and operation of a relatively small synchrotron employing superconducting magnets. Such data are essential to ensure that the design of future large accelerators may proceed in a knowledgeable and responsible manner. One of the many engineering problems associated with a superconducting magnet is the design of the coi… more
Date: March 3, 1977
Creator: Meuser, R.B.
Partner: UNT Libraries Government Documents Department
open access

Multiphoton spectroscopy in heavy elements

Description: Some recently discovered regularities in the spectra of heavy elements which are also applicable to the analysis of the spectra of lighter atoms are described. It is pointed out that stepwise resonant multiphoton methods are irreplaceable tools in the study of high lying states in a complex atomic system. Systematic applications of these methods has permitted regularities to be observed which also hold for the lighter elements. It is noted that greatly increased understanding of the excited sta… more
Date: May 3, 1977
Creator: Solarz, R. W.; Paisner, J. A. & Worden, E. F.
Partner: UNT Libraries Government Documents Department
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