19–24 May 2024
Music City Center
US/Central timezone

Advanced charge selector for stripped heavy ion beams

TUPR70
21 May 2024, 16:00
2h
Rock 'n Roll (MCC Exhibit Hall A)

Rock 'n Roll

MCC Exhibit Hall A

Poster Presentation MC7.T19 Collimation Tuesday Poster Session

Speaker

Alexander Plastun (Facility for Rare Isotope Beams)

Description

A new charge selector is currently under development at FRIB to intercept unwanted charge states of higher-power 17 - 20 MeV/u stripped heavy ion beams. The charge selector is located in the first bending segment of the FRIB linac, where high dispersion separates charge states to allow for their selection. The design concept is based on rotating graphite cylinders that act as an intermediate heat transfer medium, efficiently absorbing beam power and radiating it to a water-cooled heat exchanger. The power in the beam spot of up to 5 kW and the rms spot width as small as 0.7 mm present significant design challenges. Beyond thermal stress, the proposed design addresses the effects of radiation damage and implantation of the intercepted ions. The challenges of the engineering design associated with high temperatures, thermal expansion, rotation and linear actuation feedthrough into vacuum, as well as radiation shielding and remote handling, will be discussed. A comprehensive exploration of these challenges aims to contribute to the broader field of beam interception technology.

Funding Agency

This work is supported by the U.S. Department of Energy Office of Science under Cooperative Agreement No. DE-SC0023633, the State of Michigan, and Michigan State University.

Region represented North America
Paper preparation format LaTeX

Author

Alexander Plastun (Facility for Rare Isotope Beams)

Co-authors

Felix Marti (Facility for Rare Isotope Beams) Igor Nesterenko (Facility for Rare Isotope Beams) Jie Wei (Facility for Rare Isotope Beams) Michael Larmann (Facility for Rare Isotope Beams) Michael LaVere (Michigan State University) Nathan Bultman (Facility for Rare Isotope Beams) Peter Ostroumov (Facility for Rare Isotope Beams) Qiang Zhao (Michigan State University) Raul Quispe-Abad (Facility for Rare Isotope Beams) Takuji Kanemura (Facility for Rare Isotope Beams) Thomas Ginter (Facility for Rare Isotope Beams) Stefan Carter (Facility for Rare Isotope Beams) Samuel Miller (Facility for Rare Isotope Beams)

Presentation materials

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