Studies on the S-band bunching system with the Hybrid Bunching-accelerating Structure

Pei, Shilun; Gao, Bin

doi:10.1016/j.nima.2018.01.011

Cited by 2 publications

(3 citation statements)

References 13 publications

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“…The 2D code SUPERFISH [2] was used to obtain the dimensions of the SW and TW cells, while the 3D code HFSS [3] was used to design the input and output couplers. Finally, the on-axis field distribution of the whole HAS prototype was investigated by HFSS, which is consistent with the beam dynamics requirement [4]. The HAS can be widely applied in the industrial area to enhance the beam performance but not increase the cost.…”

Section: Introductionsupporting

confidence: 59%

“…To make the bunching system more compact but not fairly deteriorate the beam performance, the studies by using the HAS with the schematic layout shown in Fig. 1 to replace the PB, the B and the accelerating structure were carried out [4]. By a great deal of beam dynamics calculations with PARMELA [6], the basic design requirement of the HAS can be obtained and is listed in Table 1.…”

Section: Beam Dynamics Requirementmentioning

confidence: 99%

“…The two SW cells operate at π /2 mode, while the 40 TW cells operate at 2 π /3 mode. The demanded ratio of the maximum electric field amplitude in the SW1 to that in the input coupler cell is ∼ 0.44 [4].…”

Section: Beam Dynamics Requirementmentioning

confidence: 99%

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Design studies on an s-band hybrid accelerating structure

Gao

Pei

Shu

et al. 2017

Radiat Detect Technol Methods

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Background In an electron linac, the standard bunching system is generally composed of a standing-wave (SW) pre-buncher (PB), a travelling-wave (TW) buncher and a standard TW accelerating structure. Purpose To keep the beam performance similar to the standard bunching system but reduce the cost as much as possible, the hybrid accelerating structure (HAS) was proposed by integrating the PB, the B and the accelerating structure together. Methods The RF design of the HAS was conducted by 2D code SUPERFISH, which is used to determine the dimensions of the SW and TW cells, and 3D code HFSS, which is used to optimize the input and output RF coupler cells. Results The on-axis electric field distribution simulated by HFSS can fully meet the dynamic requirement. The phase jump in SW section is 180 • while the phase advance in TW section is 120 • . Conclusion The RF design of the HAS is completed, and the engineering design of the prototype is being conducted.

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Section: Introductionsupporting

confidence: 59%

Section: Beam Dynamics Requirementmentioning

confidence: 99%