|
| Publications [#4263] of Ying Wu
Papers Published
- C. Steier, D. Atkinson, J. Byrd, J. Corlett, H. Nishimura, D. Robin, S. de Santis, INTRA-BEAM SCATTERING AND MINIMUM ACHIEVABLE,
in INTRA-BEAM SCATTERING AND MINIMUM ACHIEVABLE
(June, 2001),
pp. 2938-2940
(last updated on 2013/04/18)
Abstract:
Intra-beam scattering (IBS) potentially
limits the mini-mum
emittance of low-energy storage rings, and
this ef-fect
strongly influences the choice of energy of
damping rings
for linear colliders. The Advanced Light
Source (ALS) is a
third-generation synchrotron light source
oper-ating with
high-intensity, low-emittance beams at
energies up to 2 GeV.
It can operate with an emittance coupling of
below 1%. We
present measurements of the beam growth in
three dimensions
as a function of current, for normal-ized
natural horizontal
emittances of approximately 1 - 10 mm-mrad at
energies of
0.7 - 1.5 GeV, values compara-ble to the
parameters in an
NLC damping ring [1]. Using a dedicated
diagnostic beamline
with an x-ray scintillator imaging system,
measurements of
the transverse beamsize are made,
simultaneously with bunch
length measurements using an optical streak
camera. The
bunch volume growth as a function of bunch
current is
compared with theoretical estimates, for a
parameter space
of IBS, where very little experimental data
exists so far.
|
