排序方式: 共有24条查询结果,搜索用时 15 毫秒
1.
2.
用于静电加速器的高频离子源的设计和调试 总被引:6,自引:0,他引:6
研制了一台高频离子源 ,通过实验调试取得了引出电压、聚焦电压及放电气压对引出束流影响的变化曲线 ,从而获得高频离子源的最佳工作条件 ,并测定了引出束流的束径包络 相似文献
3.
Energy instability strongly affects the state and the beam size of the single ion microbeam. A facility based on the Generating Voltmeter was developed to improve the energy stability of the CAS-LIBB (Chinese Academy of Sciences, key laboratory of ion beam bioengineering) single ion microbeam. This paper presents the analysis of the energy' instability of the single ion microbeam. A simplified theoretical model is set up to calculate the relationship between the energy instability and the beam spot size. By using this technique, the energy instability is adjusted to about 1%. Stable run-time is over 6 hours. The radius of the single ion beam is reduced by 10% compared to the previous olin. 相似文献
4.
1.IntroductionLowenergyionbeambiologyisasubjectfirstcreatedinChina[11.Incontrastwithtraditionalirradiationmeanssuch'asXray,electronbeam,laserbeam,theinjectionofionbeamintoorganismmayresetinmomentumtransfers,massdepositionandchafgeexchangeinadditiolltoenergydeposition[2,31.Usingthebiologicaleffectsofionbeam,suchresearchesasionbeam-mutagenizedbreeding,ionbeam-mediatedtransferringgene,distanthybridizationbyionbeametc.haveledtotremendoussocialandeconomicalbenefits.Generallytheprocessofionimplanta… 相似文献
5.
针对CAS-LIBB单离子束装置设计了单离子束的模拟检测系统.论文详细分析了单离子束流的探测、放大、整形JK触发器获取窄脉冲并展宽脉冲、F-V转换电路及信号的计数显示等几个部分的原理、参数的确定及相关的计算,检测精度99%以上.最后对检测系统进行测试和分析. 相似文献
6.
本文阐述了厚膜混合集成的直流稳压器的工作原理和研制过程,对稳压器的输出特性、稳定性能参数进行了详细的数据研究和分析。 相似文献
7.
8.
9.
10.
1.IntroductionAnacceleratingtubemadeup0fcylinderelectrodesisanelectrostaticlenssystem,inwhichtheionpathissimilartothatinopticlens.Manypapershavebeent0uchedonit,butveryseldomin-volvedwithanin-depthdiscussi0ni0nonfocusingpropertiesofanacceleratingtube[l~4].ThispapergivesasimpledtherentiaImethod,bywhichtheionpathisintegratedwithaunitelectr0staticlens,anddiscussesthefocusingpropertiesofthetube.2.BasicequationsofaunitlensTwocyllnderelectrodesmakeupaunitelectro-staticlens.Fortheweaklensapproximati… 相似文献