150 kV脉冲X光机
150 kV pulsed X-ray system
-
摘要: 介绍了基于Marx发生器原理设计的脉冲X光机，在设计Marx发生器时选择了正负极充电，极间电容耦合为Z形回路的Marx发生器线路，采用低抖动场畸变开关和固体低感电阻为结构元件，低感陶瓷电容作为储能元件。Marx发生器通过高压电缆和X射线管连接，得到脉冲X光机特性为：输出电压100～150 kV；０.25 m处的X射线剂量约为90.3×10-7 C/kg；脉冲宽度约为70 ns。具有性能稳定、结构紧凑、使用方便等特点。Abstract: A 150 kV pulsed X-ray system designed according to the bipolar charged Marx generator was introduced. Low jitter electric field-distortion switches, low inductance solidstate resistors and ceramic capacitors were used in the pulse generator to shorten the pulse risetime and width. The Marx generator was connected to the X-ray tube through the high-voltage cable. Then it can output a pulse with 100～150 kV amplitude, and drive the X-ray tube to produce a flash X-ray with 90.3×10-7 C/kg dose and 70 ns pulse width at 0.25 m. The X-ray system is easy to operate with stable performance and compact structure．
-
Key words:
- pulse width /
- marx generator /
- electric field-distortion switches /
- x-ray tube
-
点击查看大图
计量
- 文章访问数: 2872
- HTML全文浏览量: 399
- PDF下载量: 665
- 被引次数: 0
下载:
