Zobrazeno 1 - 10
of 116
pro vyhledávání: '"Ingo Hofmann"'
Autor:
Ingo Hofmann
Publikováno v:
Matter and Radiation at Extremes, Vol 3, Iss 1, Pp 1-11 (2018)
Using high energy accelerators for energy production by nuclear fission goes back to the 1950's with plans for “breeder accelerators” as well as with early ideas on subcritical reactors, which are currently pursued in China and other countries. A
Externí odkaz:
https://doaj.org/article/ce22124c6d6d4439914562420d6153d1
Publikováno v:
Physical Review Accelerators and Beams, Vol 24, Iss 2, p 024201 (2021)
Understanding the 3D collective long-term response of beams exposed to resonances is of theoretical interest and essential for advancing high intensity synchrotrons. This study of a hitherto unexplored beam dynamical regime is based on 2D and 3D self
Externí odkaz:
https://doaj.org/article/8b7be9ae0bb5485182b1039edd6b60ce
Autor:
Ingo Hofmann
Publikováno v:
Physical Review Accelerators and Beams, Vol 23, Iss 2, p 028001 (2020)
In the article of K. Kojima, H. Okamoto, and Y. Tokashiki [Phys. Rev. Accel. Beams 22, 074201 (2019)PRABCJ2469-988810.1103/PhysRevAccelBeams.22.074201] the authors claim that the optimum working point on the tune diagram of circular accelerators at h
Externí odkaz:
https://doaj.org/article/78a1c6ad95614f69a8ee75a014e10386
Publikováno v:
Physical Review Accelerators and Beams, Vol 21, Iss 7, p 074201 (2018)
Bunch compression achieved via a fast bunch rotation in longitudinal phase space is a well-accepted scheme to generate short, intense ion bunches for various applications. During bunch compression, coherent beam instabilities and incoherent single pa
Externí odkaz:
https://doaj.org/article/bd971028264247d5a445e7e6d79d0525
Publikováno v:
Physical Review Accelerators and Beams, Vol 20, Iss 10, p 104201 (2017)
Second order coherent oscillation modes in intense particle beams play an important role for beam stability in linear or circular accelerators. In addition to the well-known second order even envelope modes and their instability, coupled even envelop
Externí odkaz:
https://doaj.org/article/126c4d7bd7274f1bbf10199d26ac4800
Autor:
Ingo Hofmann, Oliver Boine-Frankenheim
Publikováno v:
Physical Review Accelerators and Beams, Vol 20, Iss 3, p 039901 (2017)
Externí odkaz:
https://doaj.org/article/594de50d0e294c15b85b3571d0a620aa
Autor:
Ingo Hofmann, Oliver Boine-Frankenheim
Publikováno v:
Physical Review Accelerators and Beams, Vol 20, Iss 1, p 014202 (2017)
Parametric resonances of beam eigenmodes with a periodic focusing system under the effect of space charge—also called structural instabilities—are the collective counterparts to parametric resonances of single particles or of mechanical systems.
Externí odkaz:
https://doaj.org/article/9b4f9183dec345acb8eebfaa3ded0f6b
Autor:
Ingo Hofmann
Publikováno v:
Physical Review Special Topics. Accelerators and Beams, Vol 16, Iss 8, p 084201 (2013)
We show that the difference resonance driven by the space charge pseudo-octupole of high intensity beams not only couples the beam core emittances; it can also lead to emittance exchange in the beam halo, which is of relevance for beam loss in high i
Externí odkaz:
https://doaj.org/article/8870e7e74b53426083e3df43a1d17be1
Autor:
Ingo Hofmann
Publikováno v:
Physical Review Special Topics. Accelerators and Beams, Vol 16, Iss 4, p 041302 (2013)
Using laser accelerated protons or ions for various applications—for example in particle therapy or short-pulse radiographic diagnostics—requires an effective method of focusing and energy selection. We derive an analytical scaling for the perfor
Externí odkaz:
https://doaj.org/article/389bb188229a46cb9ea8c317234e970f
Publikováno v:
Physical Review Special Topics. Accelerators and Beams, Vol 14, Iss 3, p 031304 (2011)
Experimental results in laser acceleration of protons and ions and theoretical predictions that the currently achieved energies might be raised by factors 5–10 in the next few years have stimulated research exploring this new technology for oncolog
Externí odkaz:
https://doaj.org/article/356c9eefcca5486d9a409f1f21c43dfd