Advances in Multiphysics Modeling for Parallel Finite-Element Code Suite ACE3P

Xiao, Liling; Ge, Lixin; Li, Zenghai; Ng, Cho-Kuen

doi:10.1109/jmmct.2019.2954946

Cited by 10 publications

(2 citation statements)

References 5 publications

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“…Apart from the surface cleanliness, it is conceived that the actual details of the weld seam can elevate the impact energies of secondaries to result in a harder MP barrier. Further simulations are being carried out with the 3D code ACE3P [15] to better understand the problem.…”

Section: Discussionmentioning

confidence: 99%

Cavity Production and Testing of the First C75 Cryomodule for CEBAF

Ciovati

Cheng

Daly

et al. 2022

International Conference on RF Superconductivity (20th), East Lansing, MI, USA, 28 June-02 July 2021

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The CEBAF cryomodule rework program was updated over the last few years to increase the energy gain of refurbished cryomodules to 75 MeV. The concept recycles the waveguide end-groups from original CEBAF cavities fabricated in the 1990s and replaces the five elliptical cells in each with a new optimized cell shape fabricated from large-grain, ingot Nb material. Eight cavities were fabricated at Research Instruments, Germany, and two cavities were built at Jefferson Lab. Each cavity was processed by electropolishing and tested at 2.07 K. The best eight cavities were assembled into "cavity pairs" and re-tested at 2.07 K, before assembly into the cryomodule. All but one cavity in the cryomodule were within 10% of the target accelerating gradient of 19 MV/m with a quality factor of 8×10 9 . The performance limitations were field emission and multipacting.

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Section: Discussionmentioning

confidence: 99%

Cavity Production and Testing of the First C75 Cryomodule for CEBAF

Ciovati

Cheng

Daly

et al. 2022

International Conference on RF Superconductivity (20th), East Lansing, MI, USA, 28 June-02 July 2021

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“…Specifically, cavity C3 has its input coupler located in the + x direction, and all the following cavities have their input couplers oriented in the − x direction (here, we take + ẑ to run along the beam direction and + ŷ to point in the upward (vertical) direction). In order to quantify the impact of these realistic fields, we performed 3D electromagnetic simulations using an OMEGA3P frequency domain eigen solver [11]. The electromagnetic field maps were interpolated on a 3D Cartesian grid with 61 × 61 × 601 cells and were imported into ASTRA for tracking.…”

Section: Impact Of 3d Fieldsmentioning

confidence: 99%

Opportunities for Bright Beam Generation at the Argonne Wakefield Accelerator (AWA)

Frame,

Al Marzouk,

Chubenko

et al. 2023

Instruments

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Bright electron beams have played a critical role in many recent advances in accelerator technology. Producing bright beams via photo-emission is ultimately limited by the mean transverse energy (MTE), which is determined by the photocathode. This paper discusses the opportunity to generate bright electron beams using an upgraded version of the Argonne Wakefield Accelerator (AWA) photo-injector. The focus of this study is to examine the optimal configurations of the AWA photo-injector to produce 100 pC with a ∼100 nm transverse emittance (corresponding to a 5D brightness B5≥1015 A·m−2). The numerical optimization of the AWA photo-injector operating point, including realistic electromagnetic field maps, is presented for the different types of photocathodes under consideration.

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