Development of a radiographic method for measuring the discrete spectrum of the electron beam from a plasma focus device

作     者：Neda SHAMSIAN Babak SHIRANI BIDABADI Hosein PIRJAMADI 

作者机构：Department of Nuclear Engineering Faculty of Advanced Sciences and Technologies University of Isfahan 

出 版 物：《Plasma Science and Technology》 (等离子体科学和技术（英文版）)

年 卷 期：2017年第19卷第7期

页      面：26-33页

核心收录：

学科分类：07[理学] 070204[理学-等离子体物理] 0805[工学-材料科学与工程（可授工学、理学学位）] 0702[理学-物理学] 

主　　题：magnetized plasma plasma focus plasma diagnostics electron beam energyspectrum x-ray dosimetry 

摘      要：An indirect method is proposed for measuring the relative energy spectrum of the pulsed electron beam of a plasma focus device. The Bremsstrahlung x-ray, generated by the collision of electrons against the anode surface, was measured behind lead filters with various thicknesses using a radiographic film system. A matrix equation was considered in order to explain the relation between the x-ray dose and the spectral amplitudes of the electron beam. The electron spectrum of the device was measured at 0.6 mbar argon and 22 kV charging voltage, in four discrete energy intervals extending up to 500 keV. The results of the experiments show that most of the electrons are emitted in the 125-375 keV energy range and the spectral amplitude becomes negligible beyond 375 keV.