Zobrazeno 1 - 10
of 190
pro vyhledávání: '"L. Groening"'
Autor:
X. Du, L. Groening
Publikováno v:
Physical Review Accelerators and Beams, Vol 25, Iss 12, p 124601 (2022)
Complex three-dimensional field maps can be efficiently denoised and compressed in data volume by high order single value decomposition. Extension of the method to inter/extrapolation and determination of basis function representation is reported her
Externí odkaz:
https://doaj.org/article/e68b1cb4c3594a0a9f9b1dff47ba15ef
Publikováno v:
Physical Review Accelerators and Beams, Vol 24, Iss 5, p 054201 (2021)
Particle beam eigenemittances comprise the lowest set of rms-emittances that can be imposed to a beam through symplectic optical elements. For cases of practical relevance this paper introduces an approximation providing a very simple and powerful re
Externí odkaz:
https://doaj.org/article/bcdcfd158b3b4facaed64bd81b60f7d4
Publikováno v:
Physical Review Accelerators and Beams, Vol 23, Iss 12, p 124202 (2020)
High intensity beams may suffer from serious beam quality degradation if the focusing scheme allows for occurrence of resonances or instabilities. For transverse focusing a commonly accepted and respected lattice design rule is to choose the phase ad
Externí odkaz:
https://doaj.org/article/452157d3a8984ac287d9267140f48a56
Autor:
X. Du, L. Groening
Publikováno v:
Physical Review Accelerators and Beams, Vol 21, Iss 8, p 084601 (2018)
Errors from discretization and large data volume of field maps is a concern for beam dynamics simulations with respect to achievable accuracy and to the required amount of time. High-order singular value decomposition (HOSVD) has recently emerged as
Externí odkaz:
https://doaj.org/article/8091dd08f5754fb792dc119033e5cd9f
Publikováno v:
Physical Review Accelerators and Beams, Vol 21, Iss 1, p 014201 (2018)
In 1926, H. Busch formulated a theorem for one single charged particle moving along a region with a longitudinal magnetic field [H. Busch, Berechnung der Bahn von Kathodenstrahlen in axial symmetrischen electromagnetischen Felde, Z. Phys. 81, 974 (19
Externí odkaz:
https://doaj.org/article/6b91d55cd80043a698910f3f7d49ab64
Autor:
P. Scharrer, Ch. E. Düllmann, W. Barth, J. Khuyagbaatar, A. Yakushev, M. Bevcic, P. Gerhard, L. Groening, K. P. Horn, E. Jäger, J. Krier, H. Vormann
Publikováno v:
Physical Review Accelerators and Beams, Vol 20, Iss 4, p 043503 (2017)
In many modern heavy-ion accelerator facilities, gas strippers are used to increase the projectile charge state for improving the acceleration efficiency of ion beams to higher energies. For this application, the knowledge on the behavior of charge s
Externí odkaz:
https://doaj.org/article/418523aebd85432a9a9ba89aeeb23d41
Publikováno v:
Physical Review Accelerators and Beams, Vol 20, Iss 3, p 032001 (2017)
Alvarez-type cavities are commonly used to reliably accelerate high quality hadron beams. Optimization of their longitudinal field homogeneity is usually accomplished by post-couplers, i.e., additional rods being integrated into the cavity. This pape
Externí odkaz:
https://doaj.org/article/123663cc7e26469182d5e128cd9888cd
Publikováno v:
Physical Review Accelerators and Beams, Vol 19, Iss 7, p 072802 (2016)
Knowledge of the transverse four-dimensional beam rms parameters is essential for applications that involve lattice elements that couple the two transverse degrees of freedom (planes). Of special interest is the elimination of interplane correlations
Externí odkaz:
https://doaj.org/article/4c2b6b92e0f348ce86e38ad2555810d1
Autor:
S. Yaramyshev, H. Vormann, A. Adonin, W. Barth, L. Dahl, P. Gerhard, L. Groening, R. Hollinger, M. Maier, S. Mickat, A. Orzhekhovskaya
Publikováno v:
Physical Review Special Topics. Accelerators and Beams, Vol 18, Iss 5, p 050103 (2015)
A new low energy beam transport for a multicharge uranium beam will be built at the GSI High Current Injector (HSI). All uranium charge states coming from the new ion source will be injected into GSI heavy ion high current HSI Radio Frequency Quadrup
Externí odkaz:
https://doaj.org/article/4e7220a60e8244b095594abc789b16d0
Autor:
N. A. Tahir, V. Kim, B. Schlitt, W. Barth, L. Groening, I. V. Lomonosov, A. R. Piriz, Th. Stöhlker, H. Vormann
Publikováno v:
Physical Review Special Topics. Accelerators and Beams, Vol 17, Iss 4, p 041003 (2014)
This paper presents an extensive numerical study of heating of thin solid carbon foils by 1.4 MeV/u uranium ion beams to explore the possibility of using such a target as a charge stripper at the proposed new Gesellschaft für Schwerionenforschung hi
Externí odkaz:
https://doaj.org/article/5f66bbdbf95d4b32bdf3d002f42a9eb6