فهرس المقالات Hollow cathode حرية الوصول المقاله صفحة الملخص نص كامل 1 - Development of low-pressure high-current plasma cathode electron gun and use of associated techniques Udit Narayan Pal Niraj Kumar Deepak Kumar Verma Jitendra Prajapati Mahesh Kumar Vishnu Srivastava Harish Kumar Dwivedi Ram Prakash 10.1186/2251-7235-6-36
