Progress on the construction of the 100 MeV/100 kW electron linac for the NSC KIPT neutron source

Chi, Yonggang; Pei, Shilun; Pei, Guoxi; Wang, Shuhong; Cao, Jianshe; Hou, Ming; Liu, Weibin; Zhou, Zhang; Zhao, F.Y.; Liu, Rong; Kong, Xiangcheng; Zhao, Jun; Deng, Changdong; Song, H. Y.; Liu, Jin-Tong; Dai, Xuwen; Yue, Junhui; Qi, Yang; He, Dayong; He, Xiang; Qi, Le; Li, Xiaoping; Wang, Lin; Wang, Xiang-Jian; Ma, Huizhou; Zhao, Xiaoyan; Sui, Yanfeng; Guo, Hao; Ma, Chang; Zhao, J.; Chen, Peng

doi:10.1088/1674-1137/38/4/047005

Cited by 5 publications

(4 citation statements)

References 2 publications

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“…Fig.6 The gun current signal from oscilloscope 3.5A electron beam was successfully obtained when we applied 120kV high voltage at repetition rate 1~10Hz, the flat top width of the pulsed power supply output is about 3.5us as shown in Fig. 6 [5] .…”

Section: Beam Testmentioning

confidence: 90%

Electron gun system for NSC KIPT linac

Zhou¹,

He²,

Chi³

2014

Chinese Phys. C

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In NSC KIPT linac, a neutron source based on a subcritical assembly driven by a 100MeV/100kW electron linear accelerator is under design and development. The linear accelerator needs a new high current electron gun. In this paper, the physical design, mechanical fabrication and beam test of this new electron gun are described. The emission current is designed to be higher than 2A for the pulse width of 3us with repetition rate of 50 Hz. The gun will operate with a DC high voltage power supply which can provide a high voltage up to 150 kV. .

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Section: Beam Testmentioning

confidence: 90%

Electron gun system for NSC KIPT linac

Zhou¹,

He²,

Chi³

2014

Chinese Phys. C

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“…In the NSC KIPT (National Science Centre, Kharkov Institute of Physics and Technology, Ukraine), a 100-MeV electron linac is being constructed by IHEP [5]. For that linac, a standard bunching system was adopted.…”

Section: Beam Dynamics Requirementmentioning

confidence: 99%

“…The PB, the B and the accelerating structure can be tuned independently to get the appropriate beam phase and energy spectrums at the bunching system exit, so that a clean bunch without any satellite electrons in each RF period downstream the Chicane system can be obtained [5]. With 120 kV / 0.85 A electron beam emitted from the gun, a beam with 600 mA pulsed current, 2.7 μs pulse length and < ± 4% peak-to-peak energy spread can be acquired at the linac exit [5]. 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.…”

Section: Beam Dynamics Requirementmentioning

confidence: 99%

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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“…To satisfy the energy spread requirement (<±4% pto-p) at the 100 MeV/100 kW linac exit [6], the hybrid bunching system should be able to produce similar energy spectrum as the nominal design, which is appropriate for the downstream collimation process realized by a dedicated chicane system with a collimator deployed. It should be possible to obtain a 600 mA electron beam (∼70% efficiency) after collimation (at the chicane system exit).…”

Section: Beam Dynamics Simulationmentioning

confidence: 99%

Studies on an S-band bunching system with hybrid buncher

Pei¹,

Xiao²

2013

Chinese Phys. C

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Generally, a standard bunching system is composed by an SW pre-buncher, a TW buncher and a standard accelerating section. However, there is one way to simplify the whole system to some extent by using the hybrid buncher, which is a combined structure of the SW pre-buncher and the TW buncher. Here the beam dynamics studies on an S-band bunching system with the hybrid buncher is presented, and simulation results show that similar beam performance can be obtained at the linac exit by using this kind of bunching system rather than the standard one. In the meantime, the structure design of the hybrid buncher is also described. Furthermore, the standard accelerating section can also be integrated with the hybrid buncher, which can further simplify the usual bunching system and lower the construction cost.

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Progress on the construction of the 100 MeV/100 kW electron linac for the NSC KIPT neutron source

Cited by 5 publications

References 2 publications

Electron gun system for NSC KIPT linac

Electron gun system for NSC KIPT linac

Design studies on an s-band hybrid accelerating structure

Studies on an S-band bunching system with hybrid buncher

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