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102 _aUS
135 _adrcn ---uucaa
181 0 _ai
182 0 _ab
200 1 _aProduction of energetic protons, deuterons, and neutrons up to 60 MeV via disruption of a current-carrying plasma column at 3 MA
_fD. Klir , A. V. Shishlov , V. A. Kokshenev [et al.]
203 _aText
_celectronic
300 _aTitle screen
320 _a[References: 95 tit.]
330 _aAcceleration of ions to multi-MeV energies is investigated in various plasma devices to better understand processes in astrophysical plasmas and to develop efficient accelerators for a variety of applications. This paper reports the production of proton, deuteron, and electron beams in a z-pinch—a cylindrically symmetric plasma column that is compressed by its own magnetic field. For this work, the GIT-12 pulsed-power generator was used to drive a novel configuration of z-pinch that dramatically enhanced ion acceleration associated with disruption of the current by instabilities in the compressed plasma. During the disruption of 3 MA current, hydrogen ions were accelerated up to at least 50 MeV, which is almost a hundred-times the ion energy provided by the generator driving voltage of 0.6 MV. Under optimal conditions, the total numbers of hydrogen ions with energies above 20 and 50 MeV were 4ˣ 10¹³ and 10¹¹, respectively. Accelerated deuterons produced one 20 ns (full width at half maximum) pulse of fast neutrons via D(d, n)3He and other nuclear reactions. A maximum neutron output of (1.0 ± 0.2) ˣ 10¹² neutrons/sr was observed downstream, i.e., in the anode to cathode direction. In this direction, the maximum neutron energy reached 58 ± 7 MeV. Both ion and neutron beams in our experiment reached an end-point energy of about 60 MeV, which is the highest value observed in pulsed-power devices. A localized peak voltage of gsim60 MV was driven by the inductive energy that was stored around the plasma column and that was extracted during a sub-nanosecond current drop. Considering the natural occurrence of current-carrying columns in laboratory and space plasmas, the current interruption observed in z-pinches could represent a more general physical process that contributes to the efficient conversion of magnetic energy into the energy of particle beams in various plasmas.
333 _aРежим доступа: по договору с организацией-держателем ресурса
461 _tPhysics of Plasmas
_d1989-
463 _tVol. 22, iss. 10
_v[103036, 17 р.]
_d2020
610 1 _aэлектронный ресурс
610 1 _aтруды учёных ТПУ
610 1 _aZ-пинчи
610 1 _aneutrons
610 1 _afluence
610 1 _adistribution
610 1 _adeuterium
610 1 _az-pinch
610 1 _aпроизводство
610 1 _aпротоны
610 1 _aдейтроны
610 1 _aнейтроны
610 1 _aплазма
610 1 _aproduction
610 1 _aenergy
610 1 _aprotons
610 1 _adeuterons
610 1 _aneutrons
610 1 _aplasma
701 1 _aKlir
_bD.
_gDaniel
701 1 _aShishlov
_bA. V.
_gAleksandr Viktorovich
701 1 _aKokshenev
_bV. A.
701 1 _aJackson
_bS.
_gStuart
701 1 _aRezac
_bK.
_gKarel
701 1 _aCherdizov
_bR. K.
_gRustam Koshalievich
701 1 _aCikhardt
_bJ.
_gJakub
701 1 _aKravarik
_bJ.
_gJozef
701 1 _aDudkin
_bG. N.
_gGennady Nikolaevich
701 1 _aFursov
_bF. I.
_gFedor Ivanovich
701 1 _aKrasa
_bJ.
_gJosef
701 1 _aKravarik
_bJ.
_gJozef
701 1 _aKubes
_bP.
_gPavel
701 1 _aKurmaev
_bN. E.
_gNikolay Evgenjevich
701 1 _aMunzar
_bV.
_gVojtech
701 1 _aRatakhin
_bN. A.
_cphysicist
_cHead of the Department of Tomsk Polytechnic University, Doctor of physical and mathematical sciences
_f1950-
_gNikolay Aleksandrovich
_2stltpush
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712 0 2 _aНациональный исследовательский Томский политехнический университет
_bФизико-технический институт
_bЛаборатория № 31 ядерного реактора
_h6471
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712 0 2 _aНациональный исследовательский Томский политехнический университет
_bИнженерная школа новых производственных технологий
_bОтделение материаловедения
_h7871
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801 2 _aRU
_b63413507
_c20210127
_gRCR
856 4 _uhttp://dx.doi.org/10.1088/1367-2630/abbab5
942 _cCF