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View article: Erratum: Acceleration of uranium beam to record power of 10.4 kW and observation of new isotopes at Facility for Rare Isotope Beams [Phys. Rev. Accel. beams <b>27</b>, 060101 (2024)]
Erratum: Acceleration of uranium beam to record power of 10.4 kW and observation of new isotopes at Facility for Rare Isotope Beams [Phys. Rev. Accel. beams <b>27</b>, 060101 (2024)] Open
View article: Acceleration of uranium beam to record power of 10.4 kW and observation of new isotopes at Facility for Rare Isotope Beams
Acceleration of uranium beam to record power of 10.4 kW and observation of new isotopes at Facility for Rare Isotope Beams Open
The Facility for Rare Isotope Beams (FRIB) is a major nuclear physics facility for research with fast, stopped, and reaccelerated beams that was successfully commissioned in May 2022. A key capability of FRIB is the production of an accele…
View article: Technological developments and accelerator improvements for the FRIB beam power ramp-up
Technological developments and accelerator improvements for the FRIB beam power ramp-up Open
The Facility for Rare Isotope Beams (FRIB) began operation with 1 kW beam power for scientific users in May 2022 upon completion of 8 years of project construction. The ramp-up to the ultimate beam power of 400 kW, planned over a 6-year pe…
View article: rf chopper for prebunched radioactive ion beams
rf chopper for prebunched radioactive ion beams Open
An rf chopper system is being designed for the ReAccelerator (ReA) linac at the Facility for Rare Isotope Beams at Michigan State University. The 80.5 MHz ReA radio-frequency quadrupole accelerates prebunched 16.1 MHz beams, producing four…
View article: Accelerator and beam physics challenges in support of FRIB experiments
Accelerator and beam physics challenges in support of FRIB experiments Open
The Facility for Rare Isotope Beams (FRIB), a major nuclear physics facility for research with fast, stopped and reaccelerated rare isotope beams, started operation in May 2022. Since then, a dozen nuclear physics experiments have been suc…
View article: FRIB Beam Power Ramp-up: Status and Plans
FRIB Beam Power Ramp-up: Status and Plans Open
After project completion on scope, on cost, and ahead of schedule, the Facility for Rare Isotope Beams began operations for scientific users in May of 2022. The ramp-up to a beam power of 400 kW is planned over a six-year period; 1 kW was …
View article: FRIB Transition to User Operations, Power Ramp Up, and Upgrade Perspectives
FRIB Transition to User Operations, Power Ramp Up, and Upgrade Perspectives Open
After project completion on scope, on cost, and ahead of schedule, the Facility for Rare Isotope Beams began operations for scientific users in May of 2022. During the first 12 months of user operations, the FRIB accelerator complex delive…
View article: Prior-mean-assisted Bayesian optimization application on FRIB Front-End tunning
Prior-mean-assisted Bayesian optimization application on FRIB Front-End tunning Open
Bayesian optimization~(BO) is often used for accelerator tuning due to its high sample efficiency. However, the computational scalability of training over large data-set can be problematic and the adoption of historical data in a computati…
View article: Experimental Demonstration of the Thin-Film Liquid-Metal Jet as a Charge Stripper
Experimental Demonstration of the Thin-Film Liquid-Metal Jet as a Charge Stripper Open
For high-power heavy ion accelerators, the development of a suitable charge stripper, which can handle intense beams, is essential. This Letter describes the first experimental demonstration of a heavy ion liquid lithium charge stripper. A…
View article: Accelerator commissioning and rare isotope identification at the Facility for Rare Isotope Beams
Accelerator commissioning and rare isotope identification at the Facility for Rare Isotope Beams Open
In 2008, Michigan State University was selected to establish the Facility for Rare Isotope Beams (FRIB). Construction of the FRIB accelerator was completed in January 2022. Phased accelerator commissioning with heavy ion beams started in 2…
View article: First Simultaneous Acceleration of Multiple Charge States of Heavy Ion Beams in a Large-Scale Superconducting Linear Accelerator
First Simultaneous Acceleration of Multiple Charge States of Heavy Ion Beams in a Large-Scale Superconducting Linear Accelerator Open
Experimental studies of the simultaneous acceleration of three-charge-state ^{129}Xe^{49+,50+,51+} beam from 17 to 180 MeV/nucleon in a superconducting linear accelerator are presented. The beam parameters for each individual- and multiple…
View article: Automation of the ReAccelerator Linac Phasing
Automation of the ReAccelerator Linac Phasing Open
The ReAccelerator (ReA) at the National Superconducting Cyclotron Laboratory at Michigan State University is a unique facility, as it offers the possibility to reaccelerate not only stable, but rare-isotope beams produced by fast-projectil…
View article: Heavy ion beam physics at Facility for Rare Isotope Beams
Heavy ion beam physics at Facility for Rare Isotope Beams Open
The Facility for Rare Isotope Beams (FRIB) will be the world's premier rare-isotope beam facility. Experiments with the majority (~80%) of the isotope predicted to exist will become available. The FRIB facility is based on a superconductin…
View article: RF deflecting cavity for fast radioactive ion beams
RF deflecting cavity for fast radioactive ion beams Open
View article: Commissioning Status of the Linac for the Facility for Rare Isotope Beams
Commissioning Status of the Linac for the Facility for Rare Isotope Beams Open
The Facility for Rare Isotope Beams will be completed in late 2021. Here, we report here on the current efforts to commission the first stages of the 200-MeV/u superconducting, continuous wave heavy-ion linac. The statuses of the cryogenic…
View article: Efficient continuous wave accelerating structure for ion beams
Efficient continuous wave accelerating structure for ion beams Open
The Facility for Rare Isotope Beams driver linac was designed for acceleration of multiple-charge-state beams after the stripping at ion beam energies of 17 to 20 MeV/u depending on the ion species. The linac includes a 180° achromatic ben…
View article: Design of the multi-ion injector linac for the JLAB EIC (JLEIC)
Design of the multi-ion injector linac for the JLAB EIC (JLEIC) Open
An Electron Ion Collider (EIC) is the highest priority for future U.S. accelerator-based nuclear physics facility following the completion of the Facility for Rare Isotope Beams (FRIB). Two laboratories are competing to host the future EIC…
View article: Beam commissioning in the first superconducting segment of the Facility for Rare Isotope Beams
Beam commissioning in the first superconducting segment of the Facility for Rare Isotope Beams Open
Linac segment 1 (LS1) of the FRIB driver linac is composed of 15 cryomodules, consisting of 104 superconducting (SC) resonators and 39 SC solenoids. Four ion beam species (Ne, Ar, Kr, and Xe) were successfully accelerated up to 20.3 MeV / …
View article: Heavy ion beam acceleration in the first three cryomodules at the Facility for Rare Isotope Beams at Michigan State University
Heavy ion beam acceleration in the first three cryomodules at the Facility for Rare Isotope Beams at Michigan State University Open
The Facility for Rare Isotope Beams (FRIB) being constructed at Michigan State University [J. Wei et al., The FRIB superconducting linac—status and plans, LINAC’16, Lansing, MI, p. 1, http://accelconf.web.cern.ch/AccelConf/linac2016/papers…
View article: Commissioning Status of the FRIB Front End
Commissioning Status of the FRIB Front End Open
The FRIB Front End was successfully commissioned in 2017 with commissioning goals achieved and Key Per-formance Parameters (KPP) demonstrated for both 40Ar⁹⁺ and 86Kr¹⁷⁺ beams. Two more ion species, 20Ne⁶⁺ and 129Xe²⁶⁺, have been commissio…
View article: Experience and Lessons in FRIB Superconducting Quarter-Wave Resonator Commissioning
Experience and Lessons in FRIB Superconducting Quarter-Wave Resonator Commissioning Open
The superconducting (SC) linear accelerator (linac) for the Facility for Rare Isotope Beams (FRIB) has one quarter-wave resonator (QWR) segment and two half-wave resonator (HWR) segments. The first linac segment (LS1) contains twelve β = 0…
View article: Design of the Multi-Ion Injector Linac for the JLAB EIC (JLEIC)
Design of the Multi-Ion Injector Linac for the JLAB EIC (JLEIC) Open
An Electron Ion Collider (EIC) is the highest priority for future U.S. accelerator-based nuclear physics facility following the completion of the Facility for Rare Isotope Beams (FRIB). Two laboratories are competing to host the future EIC…
View article: The FRIB SC-Linac - Installation and Phased Commissioning
The FRIB SC-Linac - Installation and Phased Commissioning Open
The Facility for Rare Isotope Beams (FRIB) superconducting (SC) driver linac is designed to accelerate all stable ions including uranium to energies above 200 MeV/u primarily with 46 cryomodules containing 324 quarter-wave resonators (QWR)…
View article: Practical design approach for trapezoidal modulation of a radio-frequency quadrupole
Practical design approach for trapezoidal modulation of a radio-frequency quadrupole Open
Trapezoidal modulation of quadrupole electrodes offers additional benefits to the concept of a radio-frequency quadrupole (RFQ). Because of the significant increase of the effective shunt impedance, RFQs with trapezoidal modulation have a …
View article: Design of β=0.65, 5 Cells, 644 MHz Elliptical Cavity for FRIB Upgrade
Design of β=0.65, 5 Cells, 644 MHz Elliptical Cavity for FRIB Upgrade Open
The superconducting (SC) linac of the Facility for Rare Isotope Beams (FRIB) under construction will deliver 200 MeV/u, 400 kW beam to the target for producing rare isotopes at Michigan State of University (MSU). For further beam energy up…
View article: Accelerator Physics Advances in FRIB (Facility for Rare Isotope Beams)
Accelerator Physics Advances in FRIB (Facility for Rare Isotope Beams) Open
This paper presents recent developments of accelerator physics related topics for the Facility for Rare Isotope Beams (FRIB) being built at Michigan State University. While extensive beam dynamics simulations including all known errors do …
View article: High-gradient low-<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>β</mml:mi></mml:math> accelerating structure using the first negative spatial harmonic of the fundamental mode
High-gradient low- accelerating structure using the first negative spatial harmonic of the fundamental mode Open
The development of high-gradient accelerating structures for low-β particles is the key for compact hadron linear accelerators. A particular example of such a machine is a hadron therapy linac, which is a promising alternative to cyclic ma…
View article: Quarter-Wave buncher for NICA project
Quarter-Wave buncher for NICA project Open
This paper represents the results of modeling the electrodynamic characteristics (EDC) for a quarter-wave coaxial beam buncher, simulation of thermal loads of the buncher, modeling of the mechanical changes in the geometric parameters caus…
View article: Suppression of multipacting in high power RF couplers operating with superconducting cavities
Suppression of multipacting in high power RF couplers operating with superconducting cavities Open
View article: High Gradient Accelerating Structures for Carbon Therapy Linac
High Gradient Accelerating Structures for Carbon Therapy Linac Open
Carbon therapy is the most promising among techniques for cancer treatment, as it has demonstrated significant improvements in clinical efficiency and reduced toxicity profiles in multiple types of cancer through much better localization o…