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Bunch length measurement using a traveling wave RF deflector
Zhang JR(张敬如); Dai JP(戴建枰); Pei GX(裴国玺); Hou M(侯汨); Zhang, JR; Dai, JP; Gu, Q; Pei, GX; Zhao, MH; Zhong, SP; Wang, XT; Chen, YZ; Hou, M
Source PublicationCHINESE PHYSICS C
Corresponding AuthorZhang, JR (reprint author), CAS, Inst High Energy Phys, Beijing 100049, Peoples R China.
AbstractRF deflectors can be used for bunch length measurement with high resolution. This paper describes a completed S-band traveling wave RF deflector and the bunch length measurement of the electron beam produced by the photocathode RF gun of the Shanghai DUV-FEL facility. This is the first time that such a transverse RF deflector has been developed and used to measure the bunch length of picosecond order in China. The deflector's VSWR, is 1.06, the whole attenuation 0.5 dB, and the bandwidth 4.77 MHz for VSWR less than I. I. With a laser pulse width of 8.5 ps, beam energy of 4.2 MeV, and bunch charge of 0.64 nC, the bunch lengths for different RF input power into the deflector were measured, and an averaged rms bunch length of 5.25 ps was obtained. A YAG crystal is used as a screen downstream of the deflector, with the calibrated value of 1 pix = 136 mu m.
KeywordRF deflector bunch length RF gun HEM(11) mode
Subject AreaPhysics
Indexed BySCI ; ADS
WOS SubjectPhysics, Nuclear ; Physics, Particles & Fields
WOS IDWOS:000274095100026
ADS Bibcode2010ChPhC..34..138Z
ADS URLhttps://ui.adsabs.harvard.edu/abs/2010ChPhC..34..138Z
ADS CITATIONShttps://ui.adsabs.harvard.edu/abs/2010ChPhC..34..138Z/citations
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Cited Times:0 [ADS]
Document Type期刊论文
Recommended Citation
GB/T 7714
Zhang JR,Dai JP,Pei GX,et al. Bunch length measurement using a traveling wave RF deflector[J]. CHINESE PHYSICS C,2010,34(1):#REF!.
APA 张敬如.,戴建枰.,裴国玺.,侯汨.,Zhang, JR.,...&Hou, M.(2010).Bunch length measurement using a traveling wave RF deflector.CHINESE PHYSICS C,34(1),#REF!.
MLA 张敬如,et al."Bunch length measurement using a traveling wave RF deflector".CHINESE PHYSICS C 34.1(2010):#REF!.
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