混合式电极结构X-pinch的研究  

Study on X-pinch of Hybrid Pole Structure

作　　者：邹俭[1] 王川[1] 曾乃工[1] 张天爵[1] 

机构地区：[1]中国原子能科学研究院串列加速器升级工程部,北京102413

出　　处：《原子能科学技术》2015年第12期2251-2254,共4页Atomic Energy Science and Technology

基　　金：中国原子能科学研究院院长基金资助项目(YZ200915)

摘　　要：X-pinch作为X射线源进行背光照相,具有较高的空间分辨率和时间分辨率,可用于拍摄快速变化的过程,如丝阵负载的内爆过程。为了得到同一组丝阵负载内爆过程的多幅背光成像图片,需多个X射线源对其进行背光成像,在天光Ⅱ-B（~250kA,50ns）脉冲功率装置的驱动下,通过实验选择了一种混合式电极结构X-pinch。实验结果表明：此种混合式电极结构X-pinch可箍缩产生X射线,所辐射出的X射线光子能量主要在2~4keV之间,因其固有的空间对称性及出光电流较小,可完成多路背光照相。The X-pinch as the source of X-ray backlighting,has higher space resolving power and time resolving power,and it can screen the process of fast change,such as the wire array implosion.For getting several X-ray backlighting photos at the same wire array implosion,it must have several X-ray sources.With LightⅡ-B（~250kA,50ns）pulsed power generator at China Institute of Atomic Energy,the X-pinch of hybrid pole structure was developed according to experiment.The results show that the X-pinch of hybrid pole structure with conical electrodes can radiate X-rays,and the X-rays mainly consist of photons with energy about between 2and 4keV.Because of the space symmetry and the least current,the X-pinch of hybrid pole structure can provide backlighting of several sides.

关 键 词：X-PINCH X射线源 相位衬度成像 

分 类 号：TL515[核科学技术—核技术及应用]