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单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,Development of X-band 50MW klystron in BVERI,*,单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,Development of X-band 50MW klystron in BVERI,*,单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,Development of X-band 50MW klystron in BVERI,*,单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,Development of X-band 50MW klystron in BVERI,*,单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,Development of X-band 50MW klystron in BVERI,*,单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,Development of X-band 50MW klystron in BVERI,*,单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,Development of X-band 50MW klystron in BVERI,*,单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,Development of X-band 50MW klystron in BVERI,*,Project goals,2024/8/29,Development of X-band 50MW klystron in BVERI,1,Shanghai Institute of Applied Physics, CAS,X band Accelerated unit,BVERI,Developing X band 50MW Klystron,X-band,acc,8 C-band accs,for 4 units,Shanghai Soft X-ray FEL (2014),Project goals2023/9/5Developme,High peak power klystron products,2024/8/29,Development of X-band 50MW klystron in BVERI,2,f: S band,P,op,:,5.5MW,:,45%,U:,140kV,Solenoid focused,f: X band,P,op,:,2.6MW,:,45%,U:,100kV,Solenoid focused,f: C band,P,op,:,3MW,:,43%,U:,50kV,Permanent magnetic,Multi-beam,High peak power klystron produ,Design Parameters,2024/8/29,Development of X-band 50MW klystron in BVERI,3,Design Parameters2023/9/5Devel,Technical proposal,2024/8/29,4,Analysis of parameter:,High beam voltage DC breakdown,High Peak output powerRF discharge,Key technology:,Development of X-band 50MW klystron in BVERI,Technical proposal2023/9/54Ana,Whole design,2 focusing manner: PPM,& Solenoid,2024/8/29,5,PPM,Solenoid,Development of X-band 50MW klystron in BVERI,Whole design2 focusing manner:,Electron gun,2024/8/29,6,Diameter of cathode,：,56.6mm,To reduce cathode load(,8.3A/cm,2,),Electron beam compression ratio,：,140,Part immersed flow gun,To avoid scalloping the beam,Diameter of beam tunnel,：,9.53mm,PPM,Solenoid,Development of X-band 50MW klystron in BVERI,Electron gun 2023/9/56Diameter,Electron gun reliability,2024/8/29,7,The maximal electric field intensity in electron gun: 2,4kV/mm,Gold-copper solder, to decrease saturated vapor pressure,Coating TiN or Cr,2,O,3,on ceramic, to restrain gliding spark discharge,Development of X-band 50MW klystron in BVERI,Electron gun reliability 2023/,Electron gun reliability,Anticorona ring, to restrain corona discharge,2024/8/29,8,Development of X-band 50MW klystron in BVERI,Electron gun reliability Antic,PPM focusing system,Dynamic transmission over 98%,Low harmonic component,Low transverse component,Prevent saturation of magnetic flux density,Low critical voltage,Remain high transmission under voltage shifting or fluctuating,2024/8/29,9,460kV,50kV,550kV,Development of X-band 50MW klystron in BVERI,PPM focusing systemDynamic tra,Solenoid focusing system,Remote control,High transmission,High reliable,Long lifetime,Easy to fabricate,2024/8/29,10,460kV,550kV,Development of X-band 50MW klystron in BVERI,Solenoid focusing systemRemote,RF system,Fundamental mode, high R/Q,Long drift tube, to realize second harmonic bunching,2024/8/29,11,Development of X-band 50MW klystron in BVERI,RF systemFundamental mode, hig,RF system,Output section: disc-loaded circuits,Lower high frequency field,Increase interaction efficiency,high transmission with axisymmetric structure,optimization,Phase velocity & impedance tapered,Two waveguide output,2024/8/29,12,Development of X-band 50MW klystron in BVERI,Thermal analysis : peak-temp 175,RF systemOutput section: disc-,RF system,2024/8/29,Development of X-band 50MW klystron in BVERI,13,RF system2023/9/5Development o,High-peak power output,2024/8/29,14,Development of X-band 50MW klystron in BVERI,High-peak power output2023/9/5,High-peak power output,2024/8/29,15,Development of X-band 50MW klystron in BVERI,TE,01,circular waveguide travel-wave window,structure,a ceramic disk,g,/4,in thickness,2 symmetrical irises at both sides,i,feature,of,E distribution,the ceramic disk at the position of,wave node,2 wave loops in between ceramic disk and irises,irises ceramic disk,E (V/m),(at R=0.48a),z/mm,4.4MV/m,E distribution,High-peak power output2023/9/5,High-peak power output,2024/8/29,16,Development of X-band 50MW klystron in BVERI,Peak temp: 93,TE,01,circular waveguide travel-wave window,11.3811.45GHz,VSWR1.05,losses0.39%,Evaporation TiN,or Cr,2,O,3,High-peak power output2023/9/5,High-peak power output,Mode converter,TE,10,rectangle,to TE,01,circular,11.3911.46GHz, VSWR1.1,losses0.4%,Aperture Evaporation Cr,2,O,3,structure,1 rectangular waveguide,2 rectangular waveguides,4 petal-shape coupling apertures,mode suppresser,circular waveguide,2024/8/29,17,Development of X-band 50MW klystron in BVERI,High-peak power outputMode con,High-peak power output,Reliability analysis of,mode converter,Aperture field: 31kV/mm,polished,Increase vacuum degree,Peak temperature 160,2024/8/29,18,Development of X-band 50MW klystron in BVERI,High-peak power outputReliabil,Liquid cooling collector,High heat transfer coefffcient,Power density : peak 65W/cm,2,average 36W/cm,2,Protruding ring, to decrease x-ray radiation,Thermal analysis,PPM 134 ,Solenoid 127 ,2024/8/29,19,Development of X-band 50MW klystron in BVERI,Liquid cooling collectorHigh h,Current status & Schedule,In progress:,Cold-test of prototype,Cathode, filament,and ceramic ring,Test system,2024/8/29,20,Development of X-band 50MW klystron in BVERI,Next:,2015.12experiment tube (1 for each focusing manner),2016.6prototype tube (2 for each focusing manner),2016.12small-mass production,Current status & Schedule In p,Thank you,Thank you,
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