Generating ultralow-emittance ion beams in a storage ring.
نویسندگان
چکیده
Laser cooling of heavy-ion beams in a storage ring is systematically studied with a multiparticle simulation code where not only exact lattice characteristics and space-charge forces but also realistic laser-ion interactions can be incorporated. The resonant coupling method is applied in order to extend the powerful longitudinal photon pressure to the transverse degrees of freedom. It is shown that, in spite of a space-charge-induced tune shift, the synchrobetatron resonance mechanism required for fast damping of transverse oscillations operates throughout the cooling process. Extremely efficient three-dimensional cooling of stored ion beams is thus feasible. It is demonstrated that, at low line density, normalized root-mean-squared emittances of the order of 10(-12) m.rad can be reached in all three directions by employing only existing technologies.
منابع مشابه
Preservation of beam emittance in the presence of ion motion in future high-energy plasma-wakefield-based colliders.
The preservation of beam quality in a plasma wakefield accelerator driven by ultrahigh intensity and ultralow emittance beams, characteristic of future particle colliders, is a challenge. The electric field of these beams leads to plasma ions motion, resulting in a nonlinear focusing force and emittance growth of the beam. We propose to use an adiabatic matching section consisting of a short pl...
متن کاملDirect Measurement of Sub-10 fs Relativistic Electron Beams with Ultralow Emittance.
Ultralow emittance (≤20 nm, normalized) electron beams with 10^{5} electrons per bunch are obtained by tightly focusing an ultrafast (∼100 fs) laser pulse on the cathode of a 1.6 cell radio frequency photoinjector. Taking advantage of the small initial longitudinal emittance, a downstream velocity bunching cavity is used to compress the beam to <10 fs rms bunch length. The measurement is per...
متن کاملLaser assisted emittance transfer for storage ring lasing
In modern storage rings the transverse emittance of electron beams can be comparable to that from state-of-art photoinjectors, but the intrinsic low peak current and large energy spread precludes the possibility of realizing short-wavelength high-gain free electron lasers (FELs) in storage rings. In this note I propose a technique to significantly increase beam peak current without greatly incr...
متن کاملطراحی شبکه الکترومغناطیس با گسیلندگی بسیار پایین برای حلقه انبارش چشمه نورایران
Storage rings are extensively used for particle colliders, damping rings and light sources. To further increase the luminosity at the colliders or brightness of a synchrotron light sources, the emittance of accelerator beam is being continually pushed downward in storage rings. In this paper, we investigate the lattice design for the storage ring of Iranian Light Source Facility (ILSF) with an ...
متن کاملDirect Observation of Ultralow Vertical Emittance Using a Vertical Undulator
In recent work, the first quantitative measurements of electron beam vertical emittance using a vertical undulator were presented, with particular emphasis given to ultralow vertical emittances [K. P. Wootton, et al., Phys. Rev. ST Accel. Beams, 17, 112802 (2014)]. Using this apparatus, a geometric vertical emittance of 0.9 ± 0.3 pm rad has been observed. A critical analysis is given of measure...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
- Physical review letters
دوره 93 20 شماره
صفحات -
تاریخ انتشار 2004