000			03083nlm2a2200373 4500
001			648978
005			20231030040856.0
035			_a(RuTPU)RU\TPU\network\14137
035			_aRU\TPU\network\14136
090			_a648978
100			_a20160614a2015 k y0engy50 ba
101	0		_aeng
105			_ay z 100zy
135			_adrcn ---uucaa
181		0	_ai
182		0	_ab
200	1		_aAn Electron Source with a Multiaperture Plasma Emitterand Beam Extraction into the Atmosphere _fM. S. Vorobyov, N. N. Koval, S. A. Sulakshin
203			_aText _celectronic
300			_aTitle screen
320			_a[References: p. 694-695 (18 tit.)]
330			_aThe results of investigating the emission properties of a multiaperture plasma emitter with grid stabilization of the emission-plasma boundary in an electron source with ejection of a generated electron beam from the accelerating gap into the atmosphere through a thin foil. A stainless-steel foil mask with 344 circular holes is laid on an emission grid with dimensions of 750 ? 150 mm. The holes form a discrete emission structure of the plasma emitter, from which electrons are emitted under the action of an accelerating voltage. The alignment of the holes in the mask of the emission structure and in the bearing grid of the output foil window, which has the same number of holes with a larger diameter, and the attainment of a coaxial plane–parallel geometry of the accelerating gap allows minimization of the beam loss in the bearing grid of the output foil window. An electron beam is a superposition of elementary beams that are formed by individual emission structures, whose plasma boundaries are stabilized with a fine-structure metal grid. The coefficient of the current extraction into the atmosphere reached 75% of the emission current. In experiments at an accelerating voltage of 200 kV, an emission current of 16 A, and a pulse duration (FWHM) of 40 ?s, a beam with an average power of ?4 kW was ejected into the atmosphere. This value is more than 60% of the beam power in the accelerating gap at a geometrical transparency of the bearing grid of the output foil window of 56%. A further increase in the power was limited by the power of the high-voltage power-supply unit.
333			_aРежим доступа: по договору с организацией-держателем ресурса
461		0	_0(RuTPU)RU\TPU\network\3526 _tInstruments and Experimental Techniques _d2000-
463			_tVol. 58, № 5 _v[P. 687–695] _d2015
610	1		_aэлектронный ресурс
610	1		_aтруды учёных ТПУ
610	1		_aисточник электронов
610	1		_aатмосфера
700		1	_aVorobyov _bM. S.
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
701		1	_aSulakshin _bS. A.
801		2	_aRU _b63413507 _c20161018 _gRCR
856	4		_uhttp://dx.doi.org/10.1134/S0020441215040132
942			_cCF