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BiBTeX citation export for MOPA69: Adjoint Optimization Applied to Flat to Round Transformers

  author       = {T.M. Antonsen and B.L. Beaudoin and S. Bernal and L. Dovlatyan and I. Haber and P.G. O’Shea and D.F. Sutter},
% author       = {T.M. Antonsen and B.L. Beaudoin and S. Bernal and L. Dovlatyan and I. Haber and P.G. O’Shea and others},
% author       = {T.M. Antonsen and others},
  title        = {{Adjoint Optimization Applied to Flat to Round Transformers}},
& booktitle    = {Proc. NAPAC'22},
  booktitle    = {Proc. 5th Int. Particle Accel. Conf. (NAPAC'22)},
  pages        = {199--202},
  eid          = {MOPA69},
  language     = {english},
  keywords     = {solenoid, quadrupole, lattice, space-charge, electron},
  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-MOPA69},
  url          = {https://jacow.org/napac2022/papers/mopa69.pdf},
  abstract     = {{We present the numerical optimization, using adjoint techniques, of Flat-to-Round (FTR) transformers operating in the strong self-field limit. FTRs transform an unmagnetized beam that has a high aspect ratio, elliptical spatial cross section, to a round beam in a solenoidal magnetic field. In its simplest form the flat to round conversion is accomplished with a triplet of quadrupoles, and a solenoid. FTR transformers have multiple applications in beam physics research, including manipulating electron beams to cool co-propagating hadron beams. Parameters that can be varied to optimize the FTR conversion are the positions and strengths of the four magnet elements, including the orientations and axial profiles of the quadrupoles and the axial profile and strength of the solenoid’s magnetic field. The adjoint method we employ [1] allows for optimization of the lattice with a minimum computational effort including self-fields. The present model is based on a moment description of the beam. However, the generalization to a particle description will be presented. The optimized designs presented here will be tested in experiments under construction at the University of Maryland.}},