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ID 18630
file
creator
Kihara, Takahiro
Iwashita, Yoshihisa
Oide, Katsunobu
Lamanna, Giuseppe
Wei, Jie
abstract
A three-dimensional (3D) laser cooling method of fast stored ion beams based on a linear coupling mechanism is explored. We extensively study two approaches proposed in previous publications, i.e., the dispersive coupling scheme and the coupling-cavity scheme, confirming how much one can improve the transverse cooling efficiency. A possible design of a coupling cavity is presented. We employ the tracking code SAD and the molecular dynamics code SOLID to carry out reliable numerical experiments where realistic lattice structures of storage rings and particle Coulomb interactions are taken into account. Through systematic simulations, it is demonstrated that resonant coupling remarkably enhances transverse cooling rates for any initial beams, making it feasible to reach an equilibrium temperature far below the current achievable level. We further emphasize the crucial importance of avoiding the Mathieu instability. We also discuss the minimum cooling power required for beam crystallization as well as on an interpretation of past experimental results in the TSR and ASTRID storage rings.
journal title
Physical Review E - Statistical, Nonlinear, and Soft Matter Physics
volume
Volume 59
issue
Issue 3
start page
3594
end page
3604
date of issued
1999-05
publisher
American Physical Society
issn
1539-3755
ncid
publisher doi
language
eng
nii type
Journal Article
HU type
Journal Articles
DCMI type
text
format
application/pdf
text version
publisher
rights
Copyright (c) 1999 American Physical Society.
relation url
department
Graduate School of Advanced Sciences of Matter