| Paper |
Title |
Page |
| TUPCH062 |
Synchrotron Radiation Diagnostics for the NSLS Booster
|
1154 |
| |
- T.V. Shaftan, I. Pinayev
BNL, Upton, Long Island, New York
|
|
| |
We developed an optical diagnostics system for the NSLS booster-synchrotron utilizing the synchrotron radiation from the dipole magnet. MATLAB based software allows to study the electron beam properties along the energy ramp. The trajectory, beam sizes and coupling at the different instants of time are retrieved from the analysis of the electron beam image. In the paper we present the system layout, as well as experimental results and upgrade plans.
|
|
| THPLS091 |
Control of Dynamic Aperture with Insertion Devices
|
3490 |
| |
- T.V. Shaftan, J. Bengtsson, S.L. Kramer
BNL, Upton, Long Island, New York
|
|
| |
It is well known that insertion devices (IDs) perturb the linear optics in the vertical plane. In particular, that the effect can be corrected locally by a symmetric arrangement of four quadrupoles on each side of the IDs. We show how to control an arbitrary set of IDs in this configuration with the response matrix for the beta-beat and perturbation of the phase advance and SVD, i.e., to maintain the dynamic aperture. We also evaluate the residual impact on the dynamic aperture from the nonlinear terms and outline how to control these. As an example, we discuss an impact of some ID models on the NSLS-2 dynamic aperture. Results for a single ID and a set of 20 IDs with random field strengths are presented.
|
|