Gas stopping and reacceleration techniques at the Facility for Rare Isotope Beams (FRIB)

Villari, A. C. C.; Bollen, G.; Henriques, A.; Lapierre, A.; Nash, S.; Ringle, R.; Schwarz, S.; Sumithrarachchi, C. S.

doi:10.1016/j.nimb.2023.05.037

Gas stopping and reacceleration techniques at the Facility for Rare Isotope Beams (FRIB)

Journal Article · Fri Jun 02 00:00:00 EDT 2023 · Nuclear Instruments and Methods in Physics Research. Section B, Beam Interactions with Materials and Atoms

DOI:https://doi.org/10.1016/j.nimb.2023.05.037· OSTI ID:1984512

Villari, A. C. C. ^[1]; Bollen, G. ^[2]; Henriques, A. ^[2]; Lapierre, A. ^[2]; Nash, S. ^[2]; Ringle, R. ^[2]; Schwarz, S. ^[2]; Sumithrarachchi, C. S. ^[2]

Michigan State University, East Lansing, MI (United States); FRIB/MSU
Michigan State University, East Lansing, MI (United States)

The Facility for Rare Isotope Beams (FRIB) at Michigan State University provides a wide range of beams and energies for science with fast, stopped and reaccelerated rare-isotope beams. FRIB was commissioned in 2022 with the science program beginning in May 2022. Here, the combination of fast beams followed by gas stopping of rare-isotope beams together with reacceleration is unique to FRIB. Stopping techniques and beam manipulation at very-low energies are important to slow down fast beams for use in either stopped-beam experimental devices, or subsequent injection in the reaccelerator for experiments at energies ranging from 0.3 MeV/u to 12 MeV/u, depending on the Q/A of the ion. Innovative stopped-beam techniques to optimize the stopping and extraction efficiencies across a wide range of atomic numbers, as well as to reduce contamination and increase extraction speed, were developed. Reacceleration of those beams involve cooling, bunching, charge breeding and acceleration by a state-of-the-art superconducting reaccelerator, ReA. In this contribution we present the latest results of various gas stoppers and techniques to eliminate contaminants after reacceleration by the ReA.

Research Organization:: Michigan State University, East Lansing, MI (United States)

Sponsoring Organization:: USDOE Office of Science (SC), Nuclear Physics (NP); USDOE Office of Science (SC), Basic Energy Sciences (BES). Scientific User Facilities (SUF); National Science Foundation (NSF)

Grant/Contract Number:: SC0000661

OSTI ID:: 1984512

Journal Information:: Nuclear Instruments and Methods in Physics Research. Section B, Beam Interactions with Materials and Atoms, Journal Name: Nuclear Instruments and Methods in Physics Research. Section B, Beam Interactions with Materials and Atoms Vol. 541; ISSN 0168-583X

Publisher:: ElsevierCopyright Statement

Country of Publication:: United States

Language:: English

References (9)

Development of a production target for FRIB: thermo-mechanical studies Pellemoine, F.; Avilov, M.; Mittig, W. Journal of Radioanalytical and Nuclear Chemistry, Vol. 299, Issue 2 https://doi.org/10.1007/s10967-013-2623-7	journal	July 2013
Design of the Advanced Rare Isotope Separator ARIS at FRIB Hausmann, M.; Aaron, A. M.; Amthor, A. M. Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, Vol. 317 https://doi.org/10.1016/j.nimb.2013.06.042	journal	December 2013
Beam thermalization in a large gas catcher Sumithrarachchi, C. S.; Morrissey, D. J.; Schwarz, S. Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, Vol. 463 https://doi.org/10.1016/j.nimb.2019.04.077	journal	January 2020
Particle-in-cell techniques for the study of space charge effects in the Advanced Cryogenic Gas Stopper Ringle, R.; Bollen, G.; Lund, K. Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, Vol. 496 https://doi.org/10.1016/j.nimb.2021.03.020	journal	June 2021
Development of high efficiency Versatile Arc Discharge Ion Source at CERN ISOLDE Penescu, L.; Catherall, R.; Lettry, J. Review of Scientific Instruments, Vol. 81, Issue 2 https://doi.org/10.1063/1.3271245	journal	February 2010
NSCL and FRIB at Michigan State University: Nuclear science at the limits of stability Gade, A.; Sherrill, B. M. Physica Scripta, Vol. 91, Issue 5 https://doi.org/10.1088/0031-8949/91/5/053003	journal	April 2016
Large radio-frequency gas catchers and the production of radioactive nuclear beams Savard, Guy Journal of Physics: Conference Series, Vol. 312, Issue 5 https://doi.org/10.1088/1742-6596/312/5/052004	journal	September 2011
First two operational years of the electron-beam ion trap charge breeder at the National Superconducting Cyclotron Laboratory Lapierre, A.; Bollen, G.; Crisp, D. Physical Review Accelerators and Beams, Vol. 21, Issue 5 https://doi.org/10.1103/PhysRevAccelBeams.21.053401	journal	May 2018
Crossing N=28 Toward the Neutron Drip Line: First Measurement of Half-Lives at FRIB Crawford, H. L.; Tripathi, V.; Allmond, J. M. Physical Review Letters, Vol. 129, Issue 21 https://doi.org/10.1103/PhysRevLett.129.212501	journal	November 2022

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References (9)

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