The Joint Accelerator Conferences Website (JACoW) is an international collaboration that publishes the proceedings of accelerator conferences held around the world.
@InProceedings{boulware:napac2019-tuplh03,
author = {C.H. Boulware and T.L. Grimm and R. Hipple and S.M. Lund and V.S. Morozov},
title = {{Double-Bend Achromat Beamline for Injection Into a High-Power Superconducting Electron Linac}},
booktitle = {Proc. NAPAC'19},
pages = {494--496},
paper = {TUPLH03},
language = {english},
keywords = {solenoid, electron, gun, dipole, cavity},
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-TUPLH03},
url = {http://jacow.org/napac2019/papers/tuplh03.pdf},
note = {https://doi.org/10.18429/JACoW-NAPAC2019-TUPLH03},
abstract = {To take advantage of the high duty cycle operation of superconducting electron linacs, commercial systems use thermionic cathode electron guns that fill every RF bucket with an electron bunch. In continuous operation, the exit energy is limited when compared to pulsed systems. Bunch length and energy spread at the exit of the gun are incompatible with low losses in the superconducting cavity. A solenoid double-bend achromatic beamline is in operation at Niowave which allows energy and bunch length filtering of the beam leaving the gun before injection into the superconducting cavity. This system uses two solenoids and two dipoles to produce a round beam, using the edge angles of the dipoles to balance the focusing effects in the two transverse planes. The design allows beam filtering on the symmetry plane where the dispersion is maximum. Additionally, the bend angle moves the electron gun off the high-energy beam axis, allowing multiple-pass operation of the superconducting booster. This contribution will discuss the beam optics design of the double-bend achromat along with the design of the magnets and beam chambers and the operational experience with the system.},
}