Transverse impedances and collective instabilities in a heavy ion accelerator
Open Access
- 12 June 2018
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Accelerators and Beams
- Vol. 21 (6), 064403
- https://doi.org/10.1103/physrevaccelbeams.21.064403
Abstract
Evaluation of transverse impedances and collective instabilities is important for determining whether a transverse feedback system or damping schemes should be prepared in the BRing (Booster Ring) at the HIAF (High Intensity Heavy-ion Accelerator Facility). In this paper, some dominant transverse impedances are estimated to build a transverse impedance model of the BRing. With this model, all potential transverse instabilities and their growth times or rates are analyzed by analytical methods or simulations, and the results agree with each other. The growth times of some instabilities are shorter than the duration times of corresponding manipulations, which shows transverse instabilities may have many detrimental impacts on the BRing. To cure the transverse instabilities, a transverse feedback system will be proposed in the design of the BRing. Besides, this paper not only shows the transverse instabilities in the BRing, but also provides the whole method for estimating them in the design of a new accelerator facility.Keywords
Funding Information
- National Natural Science Foundation of China (11505256, 11705253)
- Guangdong Innovative and Entrepreneurial Research Team Program (2016ZT06G373)
This publication has 6 references indexed in Scilit:
- CISP: Simulation Platform for Collective Instabilities in the BRing of HIAF projectNuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 2018
- Two-plane painting injection scheme for BRing of HIAFNuclear Science and Techniques, 2017
- Pressure profiles of the BRing based on the simulation used in the CSRmNuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 2017
- High Intensity heavy ion Accelerator Facility (HIAF) in ChinaNuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, 2013
- Stability of transverse dipole modes in coasting ion beams with nonlinear space charge, octupoles, and chromaticityPhysical Review Special Topics - Accelerators and Beams, 2008
- Handbook of Accelerator Physics and EngineeringPublished by World Scientific Pub Co Pte Ltd ,1999