Title :
Development of a 2 ns duration high current electron beam source using CsI coated carbon fibre cathode
Author :
Chandra, Ranveer ; Kumar, Ravindra ; Mitra, Subhasish ; Sharma, D.K. ; Patil, D.S. ; Sharma, Ashok ; Mittal, Kailash Chandra
Author_Institution :
Accel. & Pulse Power Div., Bhabha Atomic Res. Centre, Mumbai, India
fDate :
Sept. 28 2014-Oct. 3 2014
Abstract :
A 50 ampere beam current having a rise time lesser than 500 pico-seconds with its energy 50 keV is generated using field emission mechanism. Beam duration was 2 ns. CsI coating on carbon fibre cathode was done using plasma spray coating. The results obtained from this cathode were compared to the carbon fibre cathode and the reason behind higher current density in the case of CsI coating has been explained.
Keywords :
caesium compounds; carbon fibres; cathodes; electron sources; field emission; plasma arc sprayed coatings; CsI coated carbon fibre cathode; ampere beam current; beam duration; current density; field emission mechanism; high current electron beam source; plasma spray coating; rise time; Carbon; Carbon dioxide; Cathodes; Coatings; Electron beams; Electron emission; Plasmas; CsI coated carbon fibre cathode; Nano-second duration electron beam; Sub-nanosecond rise time pulses;
Conference_Titel :
Discharges and Electrical Insulation in Vacuum (ISDEIV), 2014 International Symposium on
Conference_Location :
Mumbai
Print_ISBN :
978-1-4799-6750-6
DOI :
10.1109/DEIV.2014.6961749
