Enhancement of emission currents in plasma electron sourcesbased on a low-pressure arc discharge; Journal of Physics: Conference Series; Vol. 652 : Gas Discharge Plasmas and Their Applications (GDP 2015)
| Parent link: | Journal of Physics: Conference Series Vol. 652 : Gas Discharge Plasmas and Their Applications (GDP 2015).— 2015.— [012061, 6 p.] |
|---|---|
| Auteur principal: | |
| Collectivité auteur: | |
| Autres auteurs: | , |
| Résumé: | Title screen The paper reports on a theoretical and experimental study of the discharge plasma generation with an enhanced electron emission current in a plasma electron source based on a low-pressure arc discharge with a grid-stabilized plasma emission boundary. The source operates at a pressure in the working chamber of р=0.02-0.05 Pa (Ar), accelerating voltage of up to U[a]=10 kV, and longitudinal magnetic field for electron beam transport of up to B[z]=0.1 T. The experiments show that in the mode of electron emission from the plasma, the voltage Ud between the cathode and grid electrode changes its sign. The numerical simulation demonstrates that the plasma potential and voltage U[d] depend on the electric field penetrating from the acceleration gap into the discharge region through the grid meshes, and on the discharge current, gas pressure, geometric transparency of the grid, and gas kind. It is shown that the main mechanisms responsible for the increase in the discharge current and electron emission current from the plasma are associated with secondary ion-electron emission from the emission electrode and with positive feedback between the region of cathode plasma generation and the channel of electron beam transport. Режим доступа: по договору с организацией-держателем ресурса |
| Langue: | anglais |
| Publié: |
2015
|
| Sujets: | |
| Accès en ligne: | http://dx.doi.org/10.1088/1742-6596/652/1/012061 http://earchive.tpu.ru/handle/11683/18233 |
| Format: | Électronique Chapitre de livre |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=644631 |
MARC
| LEADER | 00000nla2a2200000 4500 | ||
|---|---|---|---|
| 001 | 644631 | ||
| 005 | 20260825144032.0 | ||
| 035 | |a (RuTPU)RU\TPU\network\9714 | ||
| 035 | |a RU\TPU\network\9703 | ||
| 090 | |a 644631 | ||
| 100 | |a 20151123a2015 k y0engy50 ba | ||
| 101 | 0 | |a eng | |
| 102 | |a GB | ||
| 105 | |a y z 101zy | ||
| 135 | |a drgn ---uucaa | ||
| 181 | 0 | |a i | |
| 182 | 0 | |a b | |
| 200 | 1 | |a Enhancement of emission currents in plasma electron sourcesbased on a low-pressure arc discharge |f T. V. Koval, V. N. Devyatkov, Nguyen Bao Hung | |
| 203 | |a Text |c electronic | ||
| 300 | |a Title screen | ||
| 320 | |a [References: 13 tit.] | ||
| 330 | |a The paper reports on a theoretical and experimental study of the discharge plasma generation with an enhanced electron emission current in a plasma electron source based on a low-pressure arc discharge with a grid-stabilized plasma emission boundary. The source operates at a pressure in the working chamber of р=0.02-0.05 Pa (Ar), accelerating voltage of up to U[a]=10 kV, and longitudinal magnetic field for electron beam transport of up to B[z]=0.1 T. The experiments show that in the mode of electron emission from the plasma, the voltage Ud between the cathode and grid electrode changes its sign. The numerical simulation demonstrates that the plasma potential and voltage U[d] depend on the electric field penetrating from the acceleration gap into the discharge region through the grid meshes, and on the discharge current, gas pressure, geometric transparency of the grid, and gas kind. It is shown that the main mechanisms responsible for the increase in the discharge current and electron emission current from the plasma are associated with secondary ion-electron emission from the emission electrode and with positive feedback between the region of cathode plasma generation and the channel of electron beam transport. | ||
| 333 | |a Режим доступа: по договору с организацией-держателем ресурса | ||
| 461 | 1 | |0 (RuTPU)RU\TPU\network\3526 |t Journal of Physics: Conference Series | |
| 463 | 0 | |0 (RuTPU)RU\TPU\network\9636 |t Vol. 652 : Gas Discharge Plasmas and Their Applications (GDP 2015) |o 12th International Conference, 6–11 September 2015, Tomsk, Russia |o [proceedings] |v [012061, 6 p.] |d 2015 | |
| 610 | 1 | |a труды учёных ТПУ | |
| 610 | 1 | |a электронный ресурс | |
| 610 | 1 | |a токи | |
| 610 | 1 | |a эмиссия | |
| 610 | 1 | |a плазма | |
| 610 | 1 | |a источники электронов | |
| 610 | 1 | |a дуговые разряды | |
| 610 | 1 | |a низкое давление | |
| 700 | 1 | |a Koval |b T. V. |c mathematician, physicist |c Professor of Tomsk Polytechnic University, Doctor of physical and mathematical sciences |f 1953- |g Tamara Vasilievna |3 (RuTPU)RU\TPU\pers\34227 | |
| 701 | 1 | |a Devyatkov |b V. N. | |
| 701 | 0 | |a Nguyen Bao Hung | |
| 712 | 0 | 2 | |a Томский политехнический университет |b Институт кибернетики, ИК |c 2010-2017 |9 27025 |
| 801 | 1 | |a RU |b 63413507 |c 20151005 | |
| 801 | 2 | |a RU |b 63413507 |c 20161122 |g RCR | |
| 856 | 4 | 0 | |u http://dx.doi.org/10.1088/1742-6596/652/1/012061 |
| 856 | 4 | 0 | |u http://earchive.tpu.ru/handle/11683/18233 |
| 942 | |c CF | ||