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Muon ionization cooling provides the only practical solution to prepare high-brilliance beams necessary for a neutrino factory or muon collider. The Muon Ionization Cooling Experiment (MICE), under development at the Rutherford Appleton…

Accelerator Physics · Physics 2008-10-11 Terrence L. Hart , Daniel M. Kaplan

In order to investigate the longitudinal beam dynamics during the adiabatic capture and acceleration processes of the CRing in HIAF project, a simulation of both processes above is carried out with $U^{34+}$ ions. The ions will be captured…

Accelerator Physics · Physics 2014-10-14 Peng Shang , Da-yu Yin , Jia-wen Xia , Jian-cheng Yang , Guo-feng Qu , Wen-heng Zheng , Zhong-shan Li , Shuang Ruan

The beam-ion interaction is a potential limitation of beam performance in electron accelerators, especially where the beam emittance is of a great concern in future ultra-low emittance light source. "Conventionally", the beam instability…

Accelerator Physics · Physics 2020-07-15 Chao Li , Saike Tian , Na Wang , Haisheng Xu

Photoelectron momentum distributions from strong-field ionization of carbonyl sulfide with 800 nm central-wavelength laser pulses at various peak intensities from $4.6$ to $13\times10^{13}$ W/cm$^2$ were recorded and analyzed regarding…

Galaxy cluster mergers drive powerful shock fronts that heat the intracluster medium (ICM) and accelerate particles, redistributing the energy in a merger. A665 is one of only a few clusters with such a powerful shock ($\mathcal{M}\sim$3),…

Cosmology and Nongalactic Astrophysics · Physics 2025-10-21 Christian Norseth , Daniel R. Wik , Craig L. Sarazin , Ming Sun , Fabio Gastaldello

We apply near-threshold laser photodetachment to characterize the rotational quantum level distribution of OH$^-$ ions stored in the cryogenic ion-beam storage ring, DESIREE, at Stockholm University. We find that the stored ions relax to a…

Some peculiarities of fast laser cooling of long-lived ion beams in storage rings are discussed. Selective interaction of ions and broadband laser beam with sharp frequency and geometric edges is used while laser and ion beams are partially…

Accelerator Physics · Physics 2013-05-31 E. G. Bessonov , A. L. Osipov

The CERN-NA-59 experiment examined a wide range of electromagnetic processes for multi-GeV electrons and photons interacting with oriented single crystals. The various types of crystals and their orientations were used for producing photon…

The measurement of the electron energy distribution (EED) of electrons escaping axially from a minimum-B electron cyclotron resonance ion source (ECRIS) is reported. The experimental data were recorded with a room-temperature 14 GHz ECRIS…

The development of the new RFQ Cooler, called SHIRaC, was carried out. As a part of SPIRAL 2 facility, SHIRaC aims to handle and cool typical SPIRAL 2 beams with large emittances (up to 80 pi.mm.mrad) and high currents (up to 1 uA). Its…

Accelerator Physics · Physics 2017-12-13 Ramzi Boussaid

We have studied the cooling dynamics, formation process and geometric structure of mesoscopic crystals of externally produced magnesium ions in a Penning trap. We present a cooling model and measurements for a combination of buffer gas…

Atomic Physics · Physics 2016-10-19 T. Murboeck , S. Schmidt , G. Birkl , W. Noertershaeuser , R. C. Thompson , M. Vogel

A new approach to the development of extraction systems capable of forming ion beams with previously inaccessible intensity is proposed. The use of inhomogeneous accelerating field allows to improve the ion beam formation efficiency…

Plasma Physics · Physics 2020-12-30 S. S. Vybin , I. V. Izotov. V. A. Skalyga

The tapped ions can be cooled close to their motional ground state, which is imperative in implementing quantum computation and quantum simulation. Here we demonstrate the capability of light-mediated chiral couplings between ions, which…

Quantum Physics · Physics 2023-04-20 Chi-Chih Chen , Yi-Cheng Wang , Chun-Che Wang , H. H. Jen

The two most widely used ion cooling methods are laser cooling and sympathetic cooling by elastic collisions (ECs). Here we demonstrate another method of cooling ions that is based on resonant charge exchange (RCE) between the trapped ion…

Atomic Physics · Physics 2018-04-11 Sourav Dutta , S. A. Rangwala

We study cooling of the collective vibrational motion of two 138Ba+ ions confined in an electrodynamic trap and irradiated with laser light close to the resonances S_1/2-P_1/2 (493 nm) and P_1/2-D_3/2 (650 nm). The motional state of the…

Quantum Physics · Physics 2009-11-07 D. Reiss , K. Abich , W. Neuhauser , Ch. Wunderlich , P. E. Toschek

New experimental results from the multimirror trap GOL-3 are presented. Deuterium plasma of $~10^21 m^-3$ density is heated by a high power relativistic electron beam (peak parameters are ~1 MeV, ~25 kA, ~8 $\mu$s, ~120 kJ). Magnetic system…

We have built and operated a cryogenic Penning trap arrangement that allows for the efficient production, selection, and long-term storage of highly charged atomic ions. In close similarity to an electron-beam ion trap (EBIT) it works by…

Atomic Physics · Physics 2024-01-02 Kanika , A Krishnan , J W Klimes , B Reich , K K Anjum , P Baus , G Birkl , W Quint , M Vogel

The visible spectrum of Mo$^{15+}$ ions was measured using a high-temperature superconducting electron-beam ion trap at the Shanghai EBIT Laboratory, with an electron beam energy $E_{e}$=400 eV, significantly lower than the ionization…

Atomic Physics · Physics 2025-04-21 Cunqiang Wu , Xiaobin Ding , Qi Guo , Ke Yao , Jialin Liu , Yunqing Fu , Chenzhong Dong

New high-resolution dissociative recombination rate coefficients of rotationally cool and hot H3+ in the vibrational ground state have been measured with a 22-pole trap setup and a Penning ion source, respectively, at the ion storage ring…

The international Muon Ionization Cooling Experiment (MICE) will perform a systematic investigation of ionization cooling of a muon beam. The demonstration is based on a simplified version of a neutrino factory cooling channel. As the…

Accelerator Physics · Physics 2019-08-13 M. Bonesini