| 000 | 02879nlm1a2200361 4500 | ||
|---|---|---|---|
| 001 | 647457 | ||
| 005 | 20231030040802.0 | ||
| 035 | _a(RuTPU)RU\TPU\network\12597 | ||
| 035 | _aRU\TPU\network\12596 | ||
| 090 | _a647457 | ||
| 100 | _a20160411a2015 k y0rusy50 ca | ||
| 101 | 0 | _arus | |
| 102 | _aRU | ||
| 135 | _adrcn ---uucaa | ||
| 181 | 0 | _ai | |
| 182 | 0 | _ab | |
| 200 | 1 |
_aEffect of thermionic cathode heating current self-magnetic field on gaseous plasma generator characteristics _fI. V. Lopatin, Y. H. Akhmadeev , N. N. Koval |
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| 203 |
_aТекст _cэлектронный |
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| 300 | _aTitle screen | ||
| 320 | _a[References: 23 tit.] | ||
| 330 | _aThe performance capabilities of the PINK, a plasma generator with a thermionic cathode mounted in the cavity of a hollow cathode, depending for its operation on a non-self-sustained low-pressure gas discharge have been investigated. It has been shown that when a single-filament tungsten cathode 2 mm in diameter is used and the peak filament current is equal to or higher than 100 A, the self-magnetic field of the filament current significantly affects the discharge current and voltage waveforms. This effect is due to changes in the time and space distributions of the emission current density from the hot cathode. When the electron mean free path is close to the characteristic dimensions of the thermionic cathode, the synthesized plasma density distribution is nonuniform and the cathode is etched nonuniformly. The cathode lifetime in this case is 8–12 h. Using a cathode consisting of several parallel-connected tungsten filaments ?0.8 mm in diameter moderates the effect of the self-magnetic field of the filament current and nearly doubles the cathode lifetime. The use of this type of cathode together with a discharge igniting electrode reduces the minimum operating pressure in the plasma generator to about one third of that required for the generator operation with a single-filament cathode (to 0.04 Pa). | ||
| 333 | _aРежим доступа: по договору с организацией-держателем ресурса | ||
| 461 | _tReview of Scientific Instruments | ||
| 463 |
_tVol. 86,iss. 10 _v[103301 p.] _d2015 |
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| 610 | 1 | _aэлектронный ресурс | |
| 610 | 1 | _aтруды учёных ТПУ | |
| 700 | 1 |
_aLopatin _bI. V. |
|
| 701 | 1 |
_aAkhmadeev _bY. H. |
|
| 701 | 1 |
_aKoval _bN. N. _cspecialist in the field of electronics _cProfessor of Tomsk Polytechnic University, Doctor of technical sciences _f1948- _gNikolay Nikolaevich _2stltpush _3(RuTPU)RU\TPU\pers\34748 |
|
| 712 | 0 | 2 |
_aНациональный исследовательский Томский политехнический университет (ТПУ) _c(2009- ) _2stltpush _3(RuTPU)RU\TPU\col\15902 |
| 801 | 2 |
_aRU _b63413507 _c20161017 _gRCR |
|
| 856 | 4 | _uhttp://dx.doi.org/10.1063/1.4932543 | |
| 942 | _cCF | ||