48 citations · 49 across the 12 of their papers we have counts for
14 papers · 1 filter
Conceptual design of a mid-energy spin rotator for continuous-wave operation based on a compact multi-pi rosetta magnet
Volker Ziemann
Spin-rotators in the the few-MeV range require large trajectory deflection angles in order to change the spin direction appreciably. We describe a magnet system that accumulates ad…
Wien-Filter Hamiltonian and Transfer Matrix
Volker Ziemann
We derive the Hamiltonian and the transfer matrix of a Wien-filter with vertical magnetic field from first principles.
Real-time system identification of superconducting cavities with a recursive least-squares algorithm: closed-loop operation
Volker Ziemann
We simulate a recursive least-squares estimator to determine the bandwidth and the detuning of a cavity that is controlled with a low-level RF system and we present a…
Operational improvements for an algorithm to noninvasively measure the orbit response matrix in storage rings
Volker Ziemann
We improve the algorithm to noninvasively update the response matrix using information from the orbit-feedback system, described in [1]. The new version is capable of adapting to s…
Emittance growth of kicked and mismatched beams due to amplitude-dependent tune shift
E. Waagaard, V. Ziemann
We derive evolution equations for the first and second moments of an initially mismatched, coupled, and displaced arbitrary Gaussian phase-space distribution under the influence of…
Equilibrium parameters in coupled storage ring lattices and practical applications
Volker Ziemann, Andreas Streun
We calculate equilibrium emittances and damping times due to the emission of synchrotron radiation for coupled storage ring lattices by evaluating the projections of the commonly u…