Abstract
This paper presents the results of a study on the generation of electron beams at gas pressures ranging from 0.01 to 0.1 Torr. The fact that this range of pressures is attainable with mechanical pumps only has provoked interest in this problem. To generate an electron beam, use is made of a plasma source based on a hollow-cathode discharge in combination with a plane-parallel acceleration gap. In the given range of pressures, the peculiarities of emission and acceleration of electrons are related to the high probability of ionization of the gas in the acceleration gap and to the formation of an ion flow propagating toward the electron beam. This causes a decrease in discharge operating voltage and also an increase in plasma density in the emission region. Two types of breakdown are observed in the acceleration gap: an interelectrode breakdown and a breakdown in the plasma-electrode system. The designed electron source allows one to obtain beams of cylindrical cross section with currents of up to 1 A and energies of up to 10 keV.
| Original language | English |
|---|---|
| Pages (from-to) | 996-1001 |
| Number of pages | 6 |
| Journal | Russian Physics Journal |
| Volume | 44 |
| Issue number | 9 |
| DOIs | |
| Publication status | Published - 1 Jan 2001 |
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ASJC Scopus subject areas
- Physics and Astronomy(all)
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Generation of electron beams in the range of forevacuum pressures. / Burachevskii, Y. A.; Burdovitsin, V. A.; Kuzemchenko, M. N.; Mytnikov, A. V.; Oks, E. M.
In: Russian Physics Journal, Vol. 44, No. 9, 01.01.2001, p. 996-1001.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Generation of electron beams in the range of forevacuum pressures
AU - Burachevskii, Y. A.
AU - Burdovitsin, V. A.
AU - Kuzemchenko, M. N.
AU - Mytnikov, A. V.
AU - Oks, E. M.
PY - 2001/1/1
Y1 - 2001/1/1
N2 - This paper presents the results of a study on the generation of electron beams at gas pressures ranging from 0.01 to 0.1 Torr. The fact that this range of pressures is attainable with mechanical pumps only has provoked interest in this problem. To generate an electron beam, use is made of a plasma source based on a hollow-cathode discharge in combination with a plane-parallel acceleration gap. In the given range of pressures, the peculiarities of emission and acceleration of electrons are related to the high probability of ionization of the gas in the acceleration gap and to the formation of an ion flow propagating toward the electron beam. This causes a decrease in discharge operating voltage and also an increase in plasma density in the emission region. Two types of breakdown are observed in the acceleration gap: an interelectrode breakdown and a breakdown in the plasma-electrode system. The designed electron source allows one to obtain beams of cylindrical cross section with currents of up to 1 A and energies of up to 10 keV.
AB - This paper presents the results of a study on the generation of electron beams at gas pressures ranging from 0.01 to 0.1 Torr. The fact that this range of pressures is attainable with mechanical pumps only has provoked interest in this problem. To generate an electron beam, use is made of a plasma source based on a hollow-cathode discharge in combination with a plane-parallel acceleration gap. In the given range of pressures, the peculiarities of emission and acceleration of electrons are related to the high probability of ionization of the gas in the acceleration gap and to the formation of an ion flow propagating toward the electron beam. This causes a decrease in discharge operating voltage and also an increase in plasma density in the emission region. Two types of breakdown are observed in the acceleration gap: an interelectrode breakdown and a breakdown in the plasma-electrode system. The designed electron source allows one to obtain beams of cylindrical cross section with currents of up to 1 A and energies of up to 10 keV.
UR - http://www.scopus.com/inward/record.url?scp=52549094560&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=52549094560&partnerID=8YFLogxK
U2 - 10.1023/A:1014370225138
DO - 10.1023/A:1014370225138
M3 - Article
AN - SCOPUS:52549094560
VL - 44
SP - 996
EP - 1001
JO - Russian Physics Journal
JF - Russian Physics Journal
SN - 1064-8887
IS - 9
ER -