Sep 20 – 24, 2021
America/Vancouver timezone

First Electron Beam and Status of the High-Current EBIS Charge Breeder for the FRIB

Not scheduled
20m
Poster Production of highly charged ion beams Poster Session 1

Speaker

Dr Hyock-Jun Son (Facility for Rare Isotope Beams, National Superconducting Cyclotron Laboratory, Michigan State University)

Description

The ReA post-accelerator of the National Superconducting Cyclotron Laboratory employs an Electron-Beam Ion Trap (EBIT) as a charge breeder to reaccelerate rare-isotope beams to several MeV/u. The Facility for Rare-Isotope Beams (FRIB) is near completion and will provide RIB rates expected to exceed in some cases 10$^{10}$ particles/s. The ReA EBIT operates with an electron current of 300 – 600 mA, corresponding to an electron current density of 170 – 340 A/cm$^2$ and maximum trap capacity of 10$^{10}$ elementary charges, which can be insufficient to handle high FRIB rates. A High Current Electron-Beam Ion Source (HCEBIS) has been constructed based on the backbones of the TestEBIS from Brookhaven National Laboratory. By using a 4A electron beam, a beam current density of 298 A/cm$^2$ and a maximum trap capacity of 2.4×10$^{11}$ elementary charges can be achieved. This paper presents the status of the HCEBIS, including the simulation results and first electron-beam tests.

E-mail for contact person son@frib.msu.edu
Funding Information Work supported by National Science Foundation, under contract No. PHY-1565546

Primary authors

Dr Hyock-Jun Son (Facility for Rare Isotope Beams, National Superconducting Cyclotron Laboratory, Michigan State University) Dr Alain Lapierre (Facility for Rare Isotope Beams, National Superconducting Cyclotron Laboratory, Michigan State University) Dr Antonio Villari (Facility for Rare Isotope Beams, National Superconducting Cyclotron Laboratory, Michigan State University) Dr Ana Henriques (Facility for Rare Isotope Beams, National Superconducting Cyclotron Laboratory, Michigan State University) Mrs Charisse Supangco (Facility for Rare Isotope Beams, National Superconducting Cyclotron Laboratory, Michigan State University) Mr Cody Knowles (Facility for Rare Isotope Beams, National Superconducting Cyclotron Laboratory, Michigan State University) Mr Daniel Crisp (Facility for Rare Isotope Beams, National Superconducting Cyclotron Laboratory, Michigan State University) Mr Samuel Nash (Facility for Rare Isotope Beams, National Superconducting Cyclotron Laboratory, Michigan State University) Dr Edward Beebe (Brookhaven National Laboratory)

Presentation materials