Diagnostic Equipment for the TEMP-4M Generator of High-current Pulsed Ion Beams
Diagnostic Equipment for the TEMP-4M Generator of High-current Pulsed Ion Beams
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DOI：
10.3938/jkps.59.3531
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发表时间：
2011-12
影响因子：
0.6
通讯作者：
Y. Isakova
中科院分区：
文献类型：
--
作者：
Y. Isakova
本文介绍了吉瓦级脉冲离子束加速器诊断装置的标定和优化结果。研究是使用TEMP-4 M加速器设置在双脉冲形成模式下进行的。第一个脉冲是负的（300 - 600 ns，100 - 150 kV），然后是第二个正脉冲（80 ns，250 - 300 kV）。离子电流密度为30 - 300 A/cm（对于不同设计的二极管），离子能量为250 - 300 keV，束流由质子和碳离子组成。诊断设备的校准表明，它正确地反映了加速器在短路模式（U = 50 - 60 kV）下的操作，当操作电阻负载高达10 Ω（200 - 300 kV）时，以及当操作二极管时。一种基于飞行时间（TOF）方法的技术，用于快速确定束的组成（离子类型和电离度）进行了测试。该方法允许测定每种离子类型的离子电流密度和能谱的绝对值，准确度为± 10%。
The results of calibration and optimization of the diagnostic equipment for a gigawatt power pulsed ion beam accelerator are presented. The study was performed using the TEMP-4M accelerator set in the mode of double pulse formation. The first pulse is negative (300 – 600 ns, 100 – 150 kV), followed by the second positive pulse (80 ns, 250 – 300 kV). The ion current density is 30 – 300 A/cm(for different designs of diodes), the ion energy is 250 – 300 keV, and the beam is composed of protons and carbon ions. The calibration of the diagnostic equipment shows that it correctly reflects the accelerator operation in the short-circuit mode (U = 50 – 60 kV), when operating with a resistive load up to 10 Ω (200 – 300 kV) and when operating with a diode. A technique based on the time-of-flight (TOF) method for a quick determination of the beam’s composition (ion type and degree of ionization) was tested. The method allowed for the determination of the absolute values of the ion current density and the energy spectrum for each ion type with an accuracy of ±10%.