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@InProceedings{inacker:napac2019-moplm18,
author = {P. Inacker and S. Bellavia and A.J. Curcio and A.V. Fedotov and W. Fischer and D.M. Gassner and J.P. Jamilkowski and P.K. Kankiya and D. Kayran and D. Lehn and R. Meier and T.A. Miller and M.G. Minty and S.K. Nayak and L.K. Nguyen and L. Smart and C.J. Spataro and A. Sukhanov and J.E. Tuozzolo and Z. Zhao},
% author = {P. Inacker and S. Bellavia and A.J. Curcio and A.V. Fedotov and W. Fischer and D.M. Gassner and others},
% author = {P. Inacker and others},
title = {{Design of the 2-Stage Laser Transport for the Low Energy RHIC Electron Cooling (LEReC) DC Photogun}},
booktitle = {Proc. NAPAC'19},
pages = {144--146},
paper = {MOPLM18},
language = {english},
keywords = {laser, gun, electron, cathode, alignment},
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-MOPLM18},
url = {http://jacow.org/napac2019/papers/moplm18.pdf},
note = {https://doi.org/10.18429/JACoW-NAPAC2019-MOPLM18},
abstract = {The electron beam for the recently constructed Low Energy RHIC electron Cooler (LEReC) at Brookhaven National Laboratory is generated by a high-power fiber laser illuminating a photocathode. The pointing stability of the low-energy electron beam, which is crucial to maintain within acceptable limits given the long beam transport, is highly dependent on the center-of-mass (CoM) stability of the laser spot on the photocathode. For reasons of accessibility during operations, the laser itself is located outside the accelerator tunnel, leading to the need to propagate the laser beam 34 m via three laser tables to the photocathode. The challenges to achieving the required CoM stability of 10 microns on the photocathode thus requires mitigation of vibrations along the transport and of weather- and season-related environmental effects, while preserving accessibility and diagnostic capabilities with proactive design. After successful commissioning of the full transport in 2018/19, we report on our solutions to these design challenges.},
}