Ultrafast harmonic rf kicker design and beam dynamics analysis for an energy recovery linac based electron circulator cooler ring

doi:10.1103/PhysRevAccelBeams.19.084201

	Ultrafast harmonic rf kicker design and beam dynamics analysis for an energy recovery linac based electron circulator cooler ring
	Huang, Yulu 1,2,3; Wang, Haipeng 2; Rimmer, Robert A.2; Wang, Shaoheng 2; Guo, Jiquan 2
刊名	PHYSICAL REVIEW ACCELERATORS AND BEAMS
	2016-08-22
卷号	19 页码:10
ISSN号	2469-9888
DOI	10.1103/PhysRevAccelBeams.19.084201
英文摘要	An ultrafast kicker system is being developed for the energy recovery linac (ERL) based electron circulator cooler ring (CCR) in the proposed Jefferson Lab Electron Ion Collider (JLEIC, previously named MEIC). In the CCR, the injected electron bunches can be recirculated while performing ion cooling for 10-30 turns before the extraction, thus reducing the recirculation beam current in the ERL to 1/10 - 1/30 (150 mA - 50 mA) of the cooling beam current (up to 1.5 A). Assuming a bunch repetition rate of 476.3 MHz and a recirculating factor of 10 in the CCR, the kicker is required to operate at a pulse repetition rate of 47.63 MHz with pulse width of around 2 ns, so that only every 10th bunch in the CCR will experience a transverse kick while the rest of the bunches will not be disturbed. Such a kicker pulse can be synthesized by ten harmonic modes of the 47.63 MHz kicker pulse repetition frequency, using up to four quarter wavelength resonator (QWR) based deflecting cavities. In this paper, several methods to synthesize such a kicker waveform will be discussed and a comparison of their beamdynamics performance is made using ELEGANT. Four QWR cavities are envisaged with high transverse shunt impedance requiring less than 100 W of total rf power for a Flat-Top kick pulse. Multipole fields due to the asymmetry of this type of cavity are analyzed. The transverse emittance growth due to the sextupole component is simulated in ELEGANT. Off-axis injection and extraction issues and beam optics using a multicavity kick-drift scheme will also be discussed.
资助项目	Jefferson Science Associates, LLC under U.S. DOE[DE-AC05-06OR23177]
WOS研究方向	Physics
语种	英语
出版者	AMER PHYSICAL SOC
WOS记录号	WOS:000382010300001
资助机构	Jefferson Science Associates, LLC under U.S. DOE
内容类型	期刊论文
源URL	[http://119.78.100.186/handle/113462/43141]
专题	中国科学院近代物理研究所
通讯作者	Wang, Haipeng
作者单位	1.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China 2.Thomas Jefferson Natl Accelerator Facil, Newport News, VA 23606 USA 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Huang, Yulu,Wang, Haipeng,Rimmer, Robert A.,et al. Ultrafast harmonic rf kicker design and beam dynamics analysis for an energy recovery linac based electron circulator cooler ring[J]. PHYSICAL REVIEW ACCELERATORS AND BEAMS,2016,19:10.
APA	Huang, Yulu,Wang, Haipeng,Rimmer, Robert A.,Wang, Shaoheng,&Guo, Jiquan.(2016).Ultrafast harmonic rf kicker design and beam dynamics analysis for an energy recovery linac based electron circulator cooler ring.PHYSICAL REVIEW ACCELERATORS AND BEAMS,19,10.
MLA	Huang, Yulu,et al."Ultrafast harmonic rf kicker design and beam dynamics analysis for an energy recovery linac based electron circulator cooler ring".PHYSICAL REVIEW ACCELERATORS AND BEAMS 19(2016):10.