共查询到16条相似文献,搜索用时 46 毫秒
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上海光源储存环注入冲击磁铁空间方位的精密调整,是提高恒流注入运行指标的重要控制手段。分析了冲击磁铁精密调整的需求,设计了调整方案和控制器方案。控制系统包括可编程控制器(PLC),电机和倾角仪传感器,设计测试了二种运动控制模式以及通过以太网的遥控方案。实验完成了PLC硬件架构和软件调试,实现了对步进电机速度和定位的控制。 相似文献
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A new method for lengthening SR pulses periodicity in HLS 总被引:1,自引:0,他引:1
1IntroductionSynclirotronradiation(SR)isapowerfultoolfOrresearchinphysics,chedristryandbio1ogy.SReAnttedfromdipolemagnetisaseriesofpulseswithastrict"timestructure."ItsperiodisdeterndnedbythefrequencyofRFcavityandtheililingmodeofelectronbu-nches,sowecanadjusttheperiodofSRpulsebychangingthenUInberofelectronbunchesinstoragering.SincethestorageringofHLSisouly66mlong,thecycllcalperiodofelectron,Tc,is22ons,thatis,evenifinsinglebunchoperationmodethemakimumperiodoftheSRpulseis22Ons.However,som… 相似文献
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Mobley磁铁是2.5MV质子静电加速器毫微秒束流脉冲化研制中一个很关键的装置。它的作用是将加速器头部切割出的10—15ns脉冲束流经过加速后在尾部压缩成1—2ns脉冲束。Mobley磁铁的性能对脉冲束在靶上的脉宽及斑点大小起着重要的作用。要求磁场有±5×10~(-4)的均匀度。该磁铁采用了积木式等结构。通过测磁发现,磁场的均匀度只有±7×10~(-4),不 相似文献
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Y. Arimoto T. Oki Y. Takubo T. Itahashi N. Miyamoto M. Yoshida 《Nuclear instruments & methods in physics research. Section B, Beam interactions with materials and atoms》2010,268(2):200-208
The PRISM-FFAG ring, which consists of 10 scaling-radial-sector magnets, has been designed to store muons with large emittance and momentum spread. The FFAG magnets differ from conventional dipole magnets in that they have a magnetic field that varies strongly with radius and the vertical direction of the magnetic field alternates. Each magnet is composed of three sets of coils to produce a defocussing (outward bending)-focussing-defocussing triplet. After careful design, the PRISM-FFAG magnets were constructed and magnetic field measurements were made. The field maps in the fiducial volume show satisfactory agreement with the design fields based on OPERA 3D/TOSCA calculations. 相似文献