JACoW is a publisher in Geneva, Switzerland that publishes the proceedings of accelerator conferences held around the world by an international collaboration of editors.
@inproceedings{gonzalez:hiat2022-tup08,
author = {A.J. Gonzalez and A.S. Plastun},
title = {{RF Chopper for Prebunched Radioactive Ion Beams}},
booktitle = {Proc. HIAT'22},
% booktitle = {Proc. 15th International Conference on Heavy Ion Accelerator Technology (HIAT'22)},
pages = {87--89},
eid = {TUP08},
language = {english},
keywords = {cavity, cryomodule, simulation, rfq, dipole},
venue = {Darmstadt, Germany},
series = {International Conference on Heavy Ion Accelerator Technology},
number = {15},
publisher = {JACoW Publishing, Geneva, Switzerland},
month = {08},
year = {2022},
issn = {2673-5547},
isbn = {978-3-95450-240-0},
doi = {10.18429/JACoW-HIAT2022-TUP08},
url = {https://jacow.org/hiat2022/papers/tup08.pdf},
abstract = {{An RF chopper system is being designed for the Re-Accelerator (ReA) linac at the Facility for Rare Isotope Beams (FRIB) at Michigan State University (MSU). The chopper system is designed to clean out satellite bunches and produce a 16.1 MHz bunch structure, which allows for time-of-flight separation of the isotopes. The chopper system’s location in the beamline is between the ReA3 and ReA6 cryomodules. In ReA, the beam can be prebunched at the frequency of 16.1 MHz and accelerated in a 80.5 MHz RFQ, producing four satellite bunches for every one high-intensity bunch. The chopper system includes an RF deflector operating at 64.4 MHz, which is the beat frequency of 80.5 MHz and 16.1 MHz. The deflector deflects every bunch to spatially separate high-intensity and satellite bunches. The beam trajectory is biased by a constant magnetic field to ensure the high-intensity bunches do not experience any total deflection. The kicked bunches are low in intensity and will be sent to a beam dump, resulting in a clean 16.1 MHz beam structure injected into the ReA6 cryomodule.}},
}