Zobrazeno 1 - 10
of 226
pro vyhledávání: '"A.W. Molvik"'
Publikováno v:
Fusion Science and Technology. 61:206-215
Early application of the simple axisymmetric mirror, requiring intermediate performance between a neutron source for materials testing Q=Pfusion/Pinput ~0.05 and pure fusion Q>10, are the hybrid applications. The Axisymmetric Mirror has attractive fe
Publikováno v:
Journal of Fusion Energy. 29:548-552
The axisymmetric mirror has a number of attractive features as a driver for a fusion-fission hybrid system: geometrical simplicity, inherently steady-state operation, and the presence of natural divertors in the form of end tanks. Operation at Q ~ 1
Autor:
Peter A. Seidl, F.M. Bieniosek, Grant Logan, Alex Friedman, D. Baca, Ronald H. Cohen, A.W. Molvik, M.K. Covo, Jasmina Vujic, Jean-Luc Vay
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 261:980-985
The high-current experiment (HCX) at LBNL is a driver scale single beam injector that provides a 1 MeV K + ion beam current of 0.18 A for 5 μs. It transports high-current beams with large fill factor (ratio of the maximum beam envelope radius to the
Autor:
Prabir K. Roy, Peter A. Seidl, B.G. Logan, R. J. Briggs, Ronald H. Cohen, Craig L. Olson, J.J. Barnard, J.-L. Vay, Edward P. Lee, M. Kireeff Covo, R. A. Kishek, David P. Grote, Hong Qin, Adam B Sefkow, Joshua Coleman, Edward A. Startsev, Enrique Henestroza, Dale Welch, Simon S. Yu, Larry R. Grisham, A.W. Molvik, Ronald C. Davidson, Aharon Friedman, S.M. Lund, J.W. Kwan, W.L. Waldron, Igor Kaganovich, F.M. Bieniosek, Matthaeus Leitner, Erik P. Gilson
Publikováno v:
Nuclear Fusion. 47:721-727
Over the past two years noteworthy experimental and theoretical progress has been made towards the top-level scientific question for the US programme on heavy-ion-fusion-science and high energy density physics: ‘How can heavy-ion beams be compresse
Autor:
Aharon Friedman, J.-L. Vay, David P. Grote, Peter Stoltz, Peter A. Seidl, Ronald H. Cohen, Seth Veitzer, A.W. Molvik, John P. Verboncoeur, Miguel A. Furman, M. Kireeff Covo
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 577:65-69
Electron-clouds and rising desorbed gas pressure limit the performance of many existing accelerators and, potentially, that of future accelerators including heavy-ion warm-dense matter and fusion drivers. For the latter, self-consistent simulation of
Autor:
D. Baca, M. Kireeff Covo, Peter A. Seidl, B.G. Logan, J.J. Barnard, A.W. Molvik, Aharon Friedman, Jasmina Vujic
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 577:139-145
A Retarding Field Analyzer (RFA) was inserted in a drift region of the magnetic transport section of the High-Current Experiment (HCX), that is at high-vacuum, to measure ions and electrons resulting from beam interaction with background gas and wall
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 577:284-288
We describe near-term ion beam-driven warm dense matter (WDM) experiments. Initial experiments are at low beam velocity, below the Bragg peak, increasing toward the Bragg peak in subsequent versions of the accelerator. The WDM conditions are envision
Autor:
P. C. Efthimion, S.M. Lund, J.W. Kwan, Christine M. Celata, Matthaeus Leitner, Enrique Henestroza, Edward A. Startsev, David P. Grote, Craig L. Olson, Simon S. Yu, Peter A. Seidl, Ronald C. Davidson, M. Kireeff Covo, Erik P. Gilson, Dale Welch, Wayne R. Meier, J.J. Barnard, F.M. Bieniosek, Igor Kaganovich, Joshua Coleman, Adam B Sefkow, Alex Friedman, Larry R. Grisham, Edward P. Lee, Hong Qin, B.G. Logan, Wayne G. Greenway, W.L. Waldron, A.W. Molvik, Prabir K. Roy, W.M. Sharp, Jean-Luc Vay, Ronald H. Cohen
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 577:1-7
During the past two years, significant experimental and theoretical progress has been made in the US heavy ion fusion science program in longitudinal beam compression, ion-beam-driven warm dense matter, beam acceleration, high brightness beam transpo
Autor:
Dale Welch, D. Baca, David P. Grote, Joshua Coleman, Enrique Henestroza, J.-L. Vay, F.M. Bieniosek, Peter A. Seidl, A.W. Molvik, Prabir K. Roy, Ronald C. Davidson, Adam B Sefkow, B.G. Logan, W.L. Waldron, Aharon Friedman, D. V. Rose, W.M. Sharp, Matthaeus Leitner, Simon S. Yu, Igor Kaganovich, Erik P. Gilson, Irving Haber, Julien Armijo, P. C. Efthimion
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 577:215-222
This paper presents plans for neutralized drift compression experiments, precursors to future target heating experiments. The target-physics objective is to study warm dense matter (WDM) using short-duration (∼1 ns) ion beams that enter the targets
Autor:
F.M. Bieniosek, C. Leister, J.-L. Vay, Ronald H. Cohen, M. Kireeff Covo, D. Baca, A.W. Molvik, Peter A. Seidl, W.M. Sharp, Aharon Friedman
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 577:45-51
Electrons can accumulate in and degrade the quality of positively charged beams. This is a well-known problem in proton storage rings. Heavy-ion rings are more frequently limited by gas pressure-rise effects. Both effects may limit how closely the be