The Joint Accelerator Conferences Website (JACoW) is an international collaboration that publishes the proceedings of accelerator conferences held around the world.
@inproceedings{dooling:ipac2021-wexc04,
author = {J.C. Dooling and M. Borland and N.M. Cook and A.M. Grannan and C.J. Graziani and D.W. Lee and Y. Lee and R.R. Lindberg and G. Navrotski},
% author = {J.C. Dooling and M. Borland and N.M. Cook and A.M. Grannan and C.J. Graziani and D.W. Lee and others},
% author = {J.C. Dooling and others},
title = {{Simulations of Beam Strikes on Advanced Photon Source Upgrade Collimators using FLASH, MARS, and elegant}},
booktitle = {Proc. IPAC'21},
pages = {2562--2565},
eid = {WEXC04},
language = {english},
keywords = {simulation, electron, photon, storage-ring, radiation},
venue = {Campinas, SP, Brazil},
series = {International Particle Accelerator Conference},
number = {12},
publisher = {JACoW Publishing, Geneva, Switzerland},
month = {08},
year = {2021},
issn = {2673-5490},
isbn = {978-3-95450-214-1},
doi = {10.18429/JACoW-IPAC2021-WEXC04},
url = {https://jacow.org/ipac2021/papers/wexc04.pdf},
note = {https://doi.org/10.18429/JACoW-IPAC2021-WEXC04},
abstract = {{Modeling of high-energy-density electron beams on collimators proposed for the Advanced Photon Source Upgrade (APS-U) storage ring (SR) is carried out with codes FLASH, MARS, and elegant. Code results are compared with experimental data from two separate beam dump studies conducted in the present APS SR. Whole beam dumps of the 6-GeV, 200 mA, ultra-low emittance beam will deposit acute doses of 30 MGy within 10 to 20 microseconds, leading to hydrodynamic behavior in the collimator material. Goals for coupling the codes include accurate modeling of the hydrodynamic behavior, methods to mitigate damage, and understanding the effects of the resulting shower downstream of the collimator. Relevant experiments, though valuable, are difficult and expensive to conduct. The coupled codes will provide a method to model differing geometries, materials, and loss scenarios. Efforts thus far have been directed toward using FLASH to reproduce observed damage seen in aluminum test pieces subjected to varying beam strike currents. Stabilizing the Eulerian mesh against large energy density gradients as well as establishing release criteria from solid to fluid forms are discussed.}},
}