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@InProceedings{fischer:napac2019-tuplo03,
author = {W. Fischer and M. Blaskiewicz and M. Mapes and M.G. Minty and C. Montag and S.K. Nayak and V. Ptitsyn and J. Sandberg and P. Thieberger and N. Tsoupas and J.E. Tuozzolo and K. Yip},
% author = {W. Fischer and M. Blaskiewicz and M. Mapes and M.G. Minty and C. Montag and S.K. Nayak and others},
% author = {W. Fischer and others},
title = {{RHIC Beam Abort System Upgrade Options}},
booktitle = {Proc. NAPAC'19},
pages = {536--538},
paper = {TUPLO03},
language = {english},
keywords = {kicker, vacuum, proton, operation, heavy-ion},
venue = {Lansing, MI, USA},
series = {North American Particle Accelerator Conference},
number = {4},
publisher = {JACoW Publishing, Geneva, Switzerland},
month = {10},
year = {2019},
issn = {2673-7000},
isbn = {978-3-95450-223-3},
doi = {10.18429/JACoW-NAPAC2019-TUPLO03},
url = {http://jacow.org/napac2019/papers/tuplo03.pdf},
note = {https://doi.org/10.18429/JACoW-NAPAC2019-TUPLO03},
abstract = {The RHIC ion (polarized proton) beam intensity has increased to 4x (1.1x) of the original design specifications. In 2013 proton beam currents overcame the eddy current reduction design features in the RHIC beam abort system kicker magnets causing ferrite heating and resulting in a reduction of the kicker strength. In 2014, the abort kicker ferrites were changed, the eddy current reduction design was upgraded, and an active ferrite cooling loop installed to prevent heating. For ions the beam dump vacuum window was changed from stainless steel to a titanium alloy and the adjacent beam diffuser block carbon material was changed to allow for higher ion intensities. A thicker beam pipe was installed to prevent secondaries from quenching the adjacent superconducting quadrupole. With these upgrades there is at least a factor 2 of safety margin for the demonstrated intensities to date. For a further increase in the intensity for RHIC and eRHIC we evaluate upgrade options for the beam abort system.},
}