Advanced

MAX IV Emittance Reduction and Brightness Improvement

Leemann, Simon LU and Eriksson, Mikael LU (2014) 5th International Particle Accelerator Conference (IPAC 2014) In Proceedings of IPAC’14 p.1615-1617
Abstract
With MAX IV construction well underway and beam commissioning expected to commence in July 2015, first studies have been launched on improving the optics of the MAX IV 3 GeV storage ring with the goal of further reducing the emittance from the baseline design (320 pm rad) towards 150 pm rad while improving the matching of the electron beam to insertion devices to further improve the resulting photon brightness. We report on progress in the development of this new optics as well as studies of the impact of many strong insertion devices on beam emittance. The latter is an crucial issue in ultralow-emittance rings where dipole radiation losses are low and hence the equilibrium emittance is determined to large extent by the insertion devices.... (More)
With MAX IV construction well underway and beam commissioning expected to commence in July 2015, first studies have been launched on improving the optics of the MAX IV 3 GeV storage ring with the goal of further reducing the emittance from the baseline design (320 pm rad) towards 150 pm rad while improving the matching of the electron beam to insertion devices to further improve the resulting photon brightness. We report on progress in the development of this new optics as well as studies of the impact of many strong insertion devices on beam emittance. The latter is an crucial issue in ultralow-emittance rings where dipole radiation losses are low and hence the equilibrium emittance is determined to large extent by the insertion devices. Additionally, large stored current can lead to a significant increase of emittance via strong intrabeam scattering in both transverse and longitudinal planes. Hence, the anticipated insertion devices, stored bunch current, and RF cavity tuning all have to be taken into account when optimizing for highest brightness. We present initial results and sketch a path towards a first MAX IV upgrade. (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
in
Proceedings of IPAC’14
pages
3 pages
publisher
IPAC 2014
conference name
5th International Particle Accelerator Conference (IPAC 2014)
external identifiers
  • Scopus:84928322974
ISBN
978-3-95450-115-1
language
English
LU publication?
yes
id
1da06902-1aa3-4c32-83f0-fddb61cc30fd (old id 4538942)
alternative location
http://accelconf.web.cern.ch/AccelConf/IPAC2014/papers/tupri026.pdf
date added to LUP
2014-07-18 09:54:48
date last changed
2016-10-13 04:38:20
@misc{1da06902-1aa3-4c32-83f0-fddb61cc30fd,
  abstract     = {With MAX IV construction well underway and beam commissioning expected to commence in July 2015, first studies have been launched on improving the optics of the MAX IV 3 GeV storage ring with the goal of further reducing the emittance from the baseline design (320 pm rad) towards 150 pm rad while improving the matching of the electron beam to insertion devices to further improve the resulting photon brightness. We report on progress in the development of this new optics as well as studies of the impact of many strong insertion devices on beam emittance. The latter is an crucial issue in ultralow-emittance rings where dipole radiation losses are low and hence the equilibrium emittance is determined to large extent by the insertion devices. Additionally, large stored current can lead to a significant increase of emittance via strong intrabeam scattering in both transverse and longitudinal planes. Hence, the anticipated insertion devices, stored bunch current, and RF cavity tuning all have to be taken into account when optimizing for highest brightness. We present initial results and sketch a path towards a first MAX IV upgrade.},
  author       = {Leemann, Simon and Eriksson, Mikael},
  isbn         = {978-3-95450-115-1},
  language     = {eng},
  pages        = {1615--1617},
  publisher    = {ARRAY(0x4b1eeb8)},
  series       = {Proceedings of IPAC’14},
  title        = {MAX IV Emittance Reduction and Brightness Improvement},
  year         = {2014},
}