Zobrazeno 1 - 10
of 399
pro vyhledávání: '"I. Haber"'
Publikováno v:
Physical Review Accelerators and Beams, Vol 25, Iss 4, p 044002 (2022)
A continuous system of moment equations is introduced that models the transverse dynamics of a beam of charged particles as it passes through an arbitrary lattice of quadrupoles and solenoids in the presence of self-fields. Then, figures of merit are
Externí odkaz:
https://doaj.org/article/15cbe9ecc4d546dea7e3cf4dbbee2cb6
Publikováno v:
Physical Review Special Topics. Accelerators and Beams, Vol 13, Iss 3, p 034201 (2010)
Detailed experimental measurements are presented concerning the propagation of space-charge waves of varying amplitudes in an intense, charged-particle beam. A short perturbation to the density profile is applied at the electron gun, and both current
Externí odkaz:
https://doaj.org/article/d1e19727daa946c7b9c82cdb9c33f7b6
Publikováno v:
Physical Review Special Topics. Accelerators and Beams, Vol 12, Iss 6, p 064201 (2009)
We study, experimentally and numerically, the relaxation of an initially nonuniform intense beam in an alternating-gradient transport line. A nonlinear distribution consisting of five interacting beamlets is created and tracked for longer than seven
Externí odkaz:
https://doaj.org/article/36ef52ac062a457eba06bf604afdc338
Autor:
D. Stratakis, R. A. Kishek, R. B. Fiorito, K. Tian, I. Haber, P. G. O’Shea, M. Reiser, J. C. T. Thangaraj
Publikováno v:
Physical Review Special Topics. Accelerators and Beams, Vol 12, Iss 2, p 020101 (2009)
Knowledge of the three-dimensional structure of a charged particle beam bunch is essential for understanding its evolution and for initializing computer simulations, especially when space charge is involved. This paper presents a novel experimental m
Externí odkaz:
https://doaj.org/article/696f121ef43543e4b6f2297fcce7ccae
Autor:
J. E. Coleman, P. A. Seidl, E. Henestroza, M. A. Leitner, P. K. Roy, W. L. Waldron, D. Baca, I. Haber, A. W. Molvik, W. M. Sharp, J. Armijo
Publikováno v:
Physical Review Special Topics. Accelerators and Beams, Vol 11, Iss 5, p 050101 (2008)
An experiment to inject and match a 10 μs, singly charged K^{+} ion bunch at an ion energy of 0.3 MeV, current of 45 mA, and dimensionless perveance of 10^{-3} into a solenoid lattice has been carried out at LBNL. The principal objective of this exp
Externí odkaz:
https://doaj.org/article/307d5506ab2c431b92c8fe0d8ee71364
Publikováno v:
Physical Review Special Topics. Accelerators and Beams, Vol 9, Iss 1, p 014201 (2006)
Studies of the dynamics of longitudinal space-charge waves in space-charge dominated beams propagating through a transport channel with a long solenoid are performed at the University of Maryland. In this paper, we report some experimental results on
Externí odkaz:
https://doaj.org/article/cd13ef67b1514d0b85a78baf6cf35d2d
Autor:
F. M. Bieniosek, C. M. Celata, E. Henestroza, J. W. Kwan, L. Prost, P. A. Seidl, A. Friedman, D. P. Grote, S. M. Lund, I. Haber
Publikováno v:
Physical Review Special Topics. Accelerators and Beams, Vol 8, Iss 1, p 010101 (2005)
High current and low emittance are principal requirements for heavy-ion injection into a linac driver for inertial fusion energy. An electrostatic quadrupole injector is capable of providing these high charge density and low emittance beams. We have
Externí odkaz:
https://doaj.org/article/ce96048dcd074420b9721827b5bbc45e
Publikováno v:
Physical Review Special Topics. Accelerators and Beams, Vol 7, Iss 7, p 072801 (2004)
Characterization of beam energy spread in a space-charge dominated beam is very important to understanding the physics of intense beams. It is believed that coupling between the transverse and longitudinal directions via Coulomb collisions will cause
Externí odkaz:
https://doaj.org/article/0206c926b39a4e8b842e5299bb61d977
Publikováno v:
Physical Review Special Topics. Accelerators and Beams, Vol 6, Iss 11, p 112801 (2003)
Theoretical and experimental work has been carried out to study the longitudinal space-charge effects in a retarding field energy analyzer. A one-dimensional, steady state model for both a monoenergetic beam and a thermal beam has been developed for
Externí odkaz:
https://doaj.org/article/57f5981cedda4f65a8a2920ca9bf4d16
Autor:
Y. Zou, Y. Cui, V. Yun, A. Valfells, R. A. Kishek, S. Bernal, I. Haber, M. Reiser, P. G. O'Shea, J. G. Wang
Publikováno v:
Physical Review Special Topics. Accelerators and Beams, Vol 5, Iss 7, p 072801 (2002)
We have developed a compact high-resolution retarding field energy analyzer for measuring the energy spread of space-charge-dominated electron beams. This energy analyzer has a cylindrical electrode to overcome the defocusing effects due to space-cha
Externí odkaz:
https://doaj.org/article/989197cb7d7e4b8bb75a2dd86252260e