Measuring of spatio-temporal characteristics Z-pinch from deuterated polyethylene

Akunets, A. A.; Anan’ev, S. S.; Bakshaev, Yu. L.; Blinov, P. I.; Bryzgunov, V. A.; Chernenko, A. S.; Dan’ko, S. A.; Казаков, Е. Д.; Korolev, V. D.; Meshcherov, B. R.; Nedoseev, S. L.; Пименов, В. Г.; Смирнова, Е. А.; Ustroev, G. I.; Vikhrev, V. V.; Volobuyev, I. V.; Zelenin, A. A.

doi:10.1140/epjd/e2009-00111-0

Cited by 6 publications

(3 citation statements)

References 4 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The average neutron yield in all 11 shots was 3.5 × 10 10 while the peak number of fusion neutrons in one shot approached 6 × 10 10 at the maximum current of 1.3 MA. In comparison with previous experiments on the S-300, the yield is by one order higher than the one with deuterated fibres [26,32], X-pinches, deuterated foams [33,34] and imploding wire-arrays [26].…”

Section: Hard X-ray and Neutron Productionmentioning

confidence: 50%

Efficient production of 100 keV deuterons in deuterium gas puff Z-pinches at 2 MA current

Klír

Kravárik

Kubeš

et al. 2010

Plasma Phys. Control. Fusion

View full text Add to dashboard Cite

Deuterium gas puff experiments were carried out on the S-300 Z-pinch at the Kurchatov Institute in Moscow. Gas puffs imploded onto the axis before a current peak at about 100 ns. Fusion neutrons were generated after the gas puff implosion during global expansion of a plasma column. Neutron emission lasted on average 35 ± 5 ns (full width half maximum, FWHM). In the downstream direction (on the Z-pinch axis behind the cathode), a mean neutron energy was 2.6 ± 0.1 MeV. Side-on neutron energy spectra peaked at 2.40 ± 0.05 MeV with about 600 ± 150 keV FWHM. A broad width of sideon neutron spectra implied a high radial component of deuteron velocities. An average kinetic energy of fast deuterons, which produced fusion neutrons, was 150 keV. A peak neutron yield reached a value of 6 × 10 10 on a current level of 1.5 MA. It was by one order higher in comparison with other deuterated loads used on the same current generator. On the basis of experimental observations, we concluded that a total energy of deuterons accelerated to fusion energies was above 1.5 kJ. It is more than 15% of the energy input into a plasma. Therefore gas puff Z-pinches seem to be not only powerful sources of x-ray radiation but also efficient sources of 100 keV deuterons. Such a result is consistent with high Plasma Phys. Control. Fusion 52 (2010) 065013 D Klir et al neutron yields observed on the Angara Z-pinch and plasma foci with similar currents.

show abstract

Section: Hard X-ray and Neutron Productionmentioning

confidence: 50%

Efficient production of 100 keV deuterons in deuterium gas puff Z-pinches at 2 MA current

Klír

Kravárik

Kubeš

et al. 2010

Plasma Phys. Control. Fusion

View full text Add to dashboard Cite

show abstract

“…For this, the rapid compression of thin-walled cylindrical shells (liners) is used. Experiments on the collapse of liners are conducted in several laboratories worldwide, including at the largest generators in Russia -Angara-5-1 [4] and S-300 [6,7,8], in Britain -the MAGPIE generator [5] and in the USA -the world's largest generator "Z" [9]. In recent decades, high energy density physics has been developing rapidly.…”

Section: Introductionmentioning

confidence: 99%

Numerical solution of problems of plasma dynamics with a neutral layer

et al. 2021

View full text Add to dashboard Cite

Mathematical modeling on a computer is widely used in problems of magnetic hydrodynamics and dynamics of ionized gas (plasma). In these problems, in addition to the equations of mass, momentum, and energy balance that are common in continuum mechanics, it is necessary to solve Maxwell’s equations for the electromagnetic field. An urgent and interesting problem in the theory of ionized gas is the problem of changing the topology of the magnetic field in plasma during the processes of magnetic field lines reconnection. Such situations are characteristic of plasma processes in the Earth’s magnetosphere (natural processes and the ones resulting from active experiments in space) and in laboratory facilities for the creation of closed configurations. Because of the difficulties of diagnostics, mathematical numerical modeling is of great importance. The article presents twodimensional mathematical models of the processes of magnetic field lines reconnection occurring in plasma with finite conductivity in the vicinity of the neutral surface. Effective numerical algorithms are constructed for solving problems of plasma dynamics in the approximation of one-fluid magnetohydrodynamics. Calculations are conducted taking into account dissipative processes. The problem of transportation and interaction of closed plasma configurations in a single computational domain was solved.

show abstract

“…При исследовании динамики плазмы дейтерированного Z-пинча с малой (100 мг/см 3 ) плотностью исходной нагрузки, применяемого в экспериментах по изучению механизмов генерации нейтронов [3][4][5], необходимо получать информацию не только из областей с самой высокой температурой и плотностью, но и с периферийных участков плазмы [6,7]. В работах [3,4] было показано, что при токе 2-2,7 МА параметры плазмы в горячей точке варьируются в зависимости от параметров нагрузки в режиме работы установки в следующих диапазонах: электронная температура 1-2 кэВ, ионная температура 3-13 кэВ, электронная плотность порядка 10 22 см -3 .…”

unclassified

Vacuum Ultra-Violet Spectroscopy Methods Use for Electron Temperature Measuring in the Peripheral Plasma of Z-Pinch Prodused From Low-Density Deuterated Polyethylen

Александров¹,

Grabovskij²,

Gritsuk³

et al. 2013

PAST-TF

View full text Add to dashboard Cite

В работе представлены результаты измерения электронной температуры периферийной плазмы дейтерированного Z-пинча по спектрам излучения диагностической добавки железа в диапазоне вакуумного ультрафиолета (ВУФ) на установке «Ангара 5-1». Для регистрации спектра использовался спектрометр скользящего падения с вогнутой дифракционной решёткой. Значение электронной температуры определялось по положению максимума распределения спектра (основываясь на методе, описанном в работах [1, 2]) и по максимальной наблюдаемой степени ионизации железа. Полученные в результате измерений значения электронной температуры периферийной плазмы попадают в диапазон 200-400 эВ в зависимости от параметров эксперимента и области измерения. Ключевые слова: ВУФ-спектроскопия, диагностика плазмы, дейтерированные Z-пинчи, мощный импульсный генератор тока.

show abstract

Measuring of spatio-temporal characteristics Z-pinch from deuterated polyethylene

Cited by 6 publications

References 4 publications

Efficient production of 100 keV deuterons in deuterium gas puff Z-pinches at 2 MA current

Efficient production of 100 keV deuterons in deuterium gas puff Z-pinches at 2 MA current

Numerical solution of problems of plasma dynamics with a neutral layer

Vacuum Ultra-Violet Spectroscopy Methods Use for Electron Temperature Measuring in the Peripheral Plasma of Z-Pinch Prodused From Low-Density Deuterated Polyethylen

Contact Info

Product

Resources

About