Abstract
Relativistic electron beam generation studies have been carried out in LIA-400 system through explosive electron emission for various cathode materials. This paper presents the emission properties of different cathode materials at peak diode voltages varying from 10 to 220 kV and at peak current levels from 0.5 to 2.2 kA in a single pulse duration of 160-180 ns. The cathode materials used are graphite, stainless steel, and red polymer velvet. The perveance data calculated from experimental waveforms are compared with 1-D Child Langmuir formula to obtain the cathode plasma expansion velocity for various cathode materials. Various diode parameters are subject to shot to shot variation analysis. Velvet cathode proves to be the best electron emitter because of its lower plasma expansion velocity and least shot to shot variability.
| Original language | English |
|---|---|
| Article number | 6902813 |
| Pages (from-to) | 3491-3497 |
| Number of pages | 7 |
| Journal | IEEE Transactions on Plasma Science |
| Volume | 42 |
| Issue number | 11 |
| DOIs | |
| Publication status | Published - 1 Nov 2014 |
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Keywords
- Electron beam applications
- electron beams
- electron emission
- electron sources
- plasma devices
- pulse power systems
ASJC Scopus subject areas
- Condensed Matter Physics
- Nuclear and High Energy Physics
Cite this
Explosive emission properties of cathode materials in relativistic electron beam generation. / Chandra, Romesh; Roy, Amitava; Kalyanasundaram, Senthil; Patel, Ankur S.; Sharma, Vishnu Kumar; Menon, Rakhee; Pasula, Naresh; Kumar, Ranjeet; Ventizenko, Iger; Mashchenko, Alexander; Kolge, Tanmay; Tewari, Somesh Vinayak; Agarwal, Ritu; Sharma, Archana; Mittal, Kailash Chandra.
In: IEEE Transactions on Plasma Science, Vol. 42, No. 11, 6902813, 01.11.2014, p. 3491-3497.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Explosive emission properties of cathode materials in relativistic electron beam generation
AU - Chandra, Romesh
AU - Roy, Amitava
AU - Kalyanasundaram, Senthil
AU - Patel, Ankur S.
AU - Sharma, Vishnu Kumar
AU - Menon, Rakhee
AU - Pasula, Naresh
AU - Kumar, Ranjeet
AU - Ventizenko, Iger
AU - Mashchenko, Alexander
AU - Kolge, Tanmay
AU - Tewari, Somesh Vinayak
AU - Agarwal, Ritu
AU - Sharma, Archana
AU - Mittal, Kailash Chandra
PY - 2014/11/1
Y1 - 2014/11/1
N2 - Relativistic electron beam generation studies have been carried out in LIA-400 system through explosive electron emission for various cathode materials. This paper presents the emission properties of different cathode materials at peak diode voltages varying from 10 to 220 kV and at peak current levels from 0.5 to 2.2 kA in a single pulse duration of 160-180 ns. The cathode materials used are graphite, stainless steel, and red polymer velvet. The perveance data calculated from experimental waveforms are compared with 1-D Child Langmuir formula to obtain the cathode plasma expansion velocity for various cathode materials. Various diode parameters are subject to shot to shot variation analysis. Velvet cathode proves to be the best electron emitter because of its lower plasma expansion velocity and least shot to shot variability.
AB - Relativistic electron beam generation studies have been carried out in LIA-400 system through explosive electron emission for various cathode materials. This paper presents the emission properties of different cathode materials at peak diode voltages varying from 10 to 220 kV and at peak current levels from 0.5 to 2.2 kA in a single pulse duration of 160-180 ns. The cathode materials used are graphite, stainless steel, and red polymer velvet. The perveance data calculated from experimental waveforms are compared with 1-D Child Langmuir formula to obtain the cathode plasma expansion velocity for various cathode materials. Various diode parameters are subject to shot to shot variation analysis. Velvet cathode proves to be the best electron emitter because of its lower plasma expansion velocity and least shot to shot variability.
KW - Electron beam applications
KW - electron beams
KW - electron emission
KW - electron sources
KW - plasma devices
KW - pulse power systems
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UR - http://www.scopus.com/inward/citedby.url?scp=84910608794&partnerID=8YFLogxK
U2 - 10.1109/TPS.2014.2356615
DO - 10.1109/TPS.2014.2356615
M3 - Article
VL - 42
SP - 3491
EP - 3497
JO - IEEE Transactions on Plasma Science
JF - IEEE Transactions on Plasma Science
SN - 0093-3813
IS - 11
M1 - 6902813
ER -