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{mamun:napac2022-wepa17,
author = {M.A. Mamun and D.B. Bullard and J.R. Delayen and J.M. Grames and C. Hernandez-Garcia and G.A. Krafft and G.G. Palacios Serrano and M. Poelker and R. Suleiman and S.A.K. Wijethunga},
% author = {M.A. Mamun and D.B. Bullard and J.R. Delayen and J.M. Grames and C. Hernandez-Garcia and G.A. Krafft and others},
% author = {M.A. Mamun and others},
title = {{Improved Electrostatic Design of the Jefferson Lab 300 kV DC Photogun and the Minimization of Beam Deflection}},
& booktitle = {Proc. NAPAC'22},
booktitle = {Proc. 5th Int. Particle Accel. Conf. (NAPAC'22)},
pages = {655--658},
eid = {WEPA17},
language = {english},
keywords = {gun, cathode, electron, high-voltage, laser},
venue = {Albuquerque, NM, USA},
series = {International Particle Accelerator Conference},
number = {5},
publisher = {JACoW Publishing, Geneva, Switzerland},
month = {10},
year = {2022},
issn = {2673-7000},
isbn = {978-3-95450-232-5},
doi = {10.18429/JACoW-NAPAC2022-WEPA17},
url = {https://jacow.org/napac2022/papers/wepa17.pdf},
abstract = {{An electron beam with high bunch charge and high repetition rate is required for electron cooling of the ion beam to achieve the high luminosity required for the proposed electron-ion colliders. An improved design of the 300 kV DC high voltage photogun at Jefferson Lab was incorporated toward overcoming the beam loss and space charge current limitation experienced in the original design. To reach the bunch charge goal of ~ few nC within 75 ps bunches, the existing DC high voltage photogun electrodes and anode-cathode gap were modified to increase the longitudinal electric field (Ez) at the photocathode. The anode-cathode gap was reduced to increase the Ez at the photocathode, and the anode aperture was spatially shifted with respect to the beamline longitudinal axis to minimize the beam deflection introduced by the geometric asymmetry of the inverted insulator photogun. The electrostatic design and beam dynamics simulations were performed to determine the required modification. Beam-based measurement from the modified gun confirmed the reduction of the beam deflection, which is presented in this contribution.}},
}