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Related papers: An RFQ injection system for the HRIBF

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Efficient transport of high-current negative ion beams is critical for accurate plasma potential diagnostics using heavy-ion beam probe (HIBP) systems in magnetically confined fusion plasmas. However, strong space-charge effects often…

Plasma Physics · Physics 2025-09-23 M. Nishiura , K. Nakamura , K. Ueda , A. Shimizu , H. Takubo , M. Kanda , T. Ido , M. Okamura

We probe resonant dipolar interactions between ultracold $^{40}$K$^{87}$Rb molecules and Rydberg $^{87}$Rb atoms in an optically trapped ensemble. Through state-selective ionization detection of the KRb molecules, we observe resonant energy…

Atomic Physics · Physics 2025-04-10 Lingbang Zhu , Jeshurun Luke , Roy Shaham , Yi-Xiang Liu , Kang-Kuen Ni

We implement high-efficiency coherent excitation to a Rydberg state using stimulated Raman adiabatic passage in a cold atom electron and ion source. We achieve an efficiency of 60% averaged over the laser excitation volume with a peak…

Atomic Physics · Physics 2016-08-17 B. M. Sparkes , D. Murphy , R. J. Taylor , R. W. Speirs , A. J. McCulloch , R. E. Scholten

The Low-Energy Demonstration Accelerator (LEDA) radio-frequency quadrupole (RFQ) is a 100% duty factor (CW) linac that delivers >100 mA of H+ beam at 6.7 MeV. The 8-m-long, 350-MHz RFQ structure accelerates a dc, 75-keV, 110-mA H+ beam from…

Accelerator Physics · Physics 2012-08-27 M. E. Schulze , J. D. Gilpatrick , W. P. Lysenko , L. J. Rybarcyk , J. D. Schneider , H. V. Smith, , L. M. You

Employing recent developed magneto-optical trap recoil ion momentum spectroscopy (MOTRIMS) combining cold atom, strong laser pulse, and ultrafast technologies, we study momentum distributions of the multiply ionized cold rubidium (Rb)…

We report on hybrid circuit QED experiments with focused ion beam implanted Er$^{3+}$ ions in Y$_2$SiO$_5$ coupled to an array of superconducting lumped element microwave resonators. The Y$_2$SiO$_5$ crystal is divided into several areas…

Mesoscale and Nanoscale Physics · Physics 2014-10-22 S. Probst , N. Kukharchyk , H. Rotzinger , A. Tkalcec , S. Wünsch , A. D. Wieck , M. Siegel , A. V. Ustinov , P. A. Bushev

The Relativistic Electron Facility for Education and Research (REFER) at Hiroshima University accepts a 150 MeV electron beam from a microtron, the injector to the 700 MeV storage ring of the Hiroshima Synchrotron Research Center, and keep…

Accelerator Physics · Physics 2007-05-23 T. Ohgaki , I. Endo , M. Andreyashikin , K. Chouffani , K. Goto , S. Masuda , K. Matsukado , T. Takahashi , K. Yoshida

Paul traps are widely used to confine electrically charged particles like atomic and molecular ions by using an intense radiofrequency (RF) field, typically obtained by a voltage drop on capacitative electrodes placed in vacuum. We present…

Atomic Physics · Physics 2018-12-06 Amelia Detti , Marco De Pas , Lucia Duca , Elia Perego , Carlo Sias

Laser driven particle acceleration has shown remarkable progresses in generating multi-GeV electron bunches and 10s of MeV ion beams based on high-power laser facilities. Intense laser pulse offers the acceleration field of 1012 Volt per…

A linear accelerator, called RAON, has been being developed as a part of Rare Isotope Science Project (RISP) by Institute for Basic Science (IBS) [1]. The linear accelerator utilizes an electron cyclotron resonance (ECR) ion source for…

In order to achieve its ambitious luminosity target, the SuperKEKB collider must achieve and sustain high beam currents on the order of Ampere in its storage rings. This requires continuous top-up injection and operation with a two-bunch…

Accelerator Physics · Physics 2026-02-24 B. Urbschat , G. Mitsuka , L. Ruckman

We propose a scheme to realize a heavy Rydberg system (HRS), a bound pair of oppositely charged ions, from a gas of ultracold atoms. The intermediate step to achieve large internuclear separations is the creation of a unique class of…

Atomic Physics · Physics 2020-08-26 Frederic Hummel , Peter Schmelcher , Herwig Ott , Hossein R. Sadeghpour

A High Rigidity Spectrometer (HRS) has been designed for experiments at the Facility for Rare-Isotope Beams (FRIB) at Michigan State University (MSU). The HRS will allow experiments to be performed with the most exotic neutron-rich isotopes…

The key element in the Proton-Driven-Plasma-Wake-Field-Accelerator (AWAKE) project is the generation of highly uniform plasma from Rubidium vapor. The standard way to achieve full ionization is to use high power laser which can assure the…

We demonstrate that transitions between Zeeman-split sublevels of Rb atoms are resonantly induced by the motion of the atoms (velocity: about 100 m/s) in a periodic magnetostatic field (period: 1 mm) when the Zeeman splitting corresponds to…

Atomic Physics · Physics 2009-11-11 A. Hatakeyama , Y. Enomoto , K. Komaki , Y. Yamazaki

In gaseous tracking detectors with a large gaseous volume multiple layers of Gas Electron Multipliers (GEM) can be used to block positive ions from flowing back into the active volume, which is detrimental to the tracking performance. We…

Instrumentation and Detectors · Physics 2022-10-19 Sourav Tarafdar , Senta V. Greene , Julia Velkovska , Brandon Blankenship , Michael Z. Reynolds

This work studies the suitability of a set of different materials for manufacturing of more efficient and durable Radio-Frequency Quadrupole (RFQ) structures compared to that currently used in many linear particle accelerators,…

We present a new electro-optic modulation technique that enables a single laser diode to realize a cold-atom source and a quantum inertial sensor based on matter-wave interferometry. Using carrier-suppressed dual single-sideband modulation,…

Atomic Physics · Physics 2022-11-11 S. Templier , J. Hauden , P. Cheiney , F. Napolitano , H. Porte , P. Bouyer , B. Barrett , B. Battelier

Intense highly charged ion beam production is essential for high-power heavy ion accelerators. A novel movable Vlasov launcher for superconducting high charge state Electron Cyclotron Resonance (ECR) ion source has been devised that can…

It is proposed to develop a source of polarized ^3He^{++} ions for the JINR Accelerator Complex on the basis of its polarized deuteron source by feeding its radio-frequency dissociator with ^3He gas to produce metastable atoms, using an…

Accelerator Physics · Physics 2009-09-28 V. V. Fimushkin , E. D. Donets , I. V. Gapienko , Yu. A. Plis , Yu. V. Prokofichev , V. P. Vadeev