Abstract
The acceleration of hydrogen ions up to 35 MeV is observed in the z-pinch experiments on the GIT-12 generator at a 3 MA current and 0.6 MV driving voltage. High ion energies are obtained with a novel configuration of a deuterium gas-puff z-pinch. In this configuration, a hollow cylindrical plasma shell is injected around an inner deuterium gas puff to form a homogeneous, uniformly conducting layer between electrodes at the initial phase of z-pinch implosion. The stable implosion at the velocity up to 650 km s-1 is important to deliver more current onto the z-pinch axis. Magnetohydrodynamic instabilities become apparent first at stagnation. After the disruptive development of m = 0 instabilities, ∼20 ns pulses of high-energy photons, neutrons, electrons, and ions are observed. The average neutron yield is 2 ×1012. The ion emission is characterized by various diagnostic techniques including those based on the usage of neutron-producing samples. When a large neutron-producing sample is placed onto the axis below a cathode mesh, the neutron yield is increased up to (1.1 ±0.3) ×1013. Considering a ∼130 kJ energy input into z-pinch plasmas and magnetic field, this implies the neutron production efficiency of ∼108 neutrons per one Joule of the z-pinch energy.
| Original language | English |
|---|---|
| Article number | 014018 |
| Journal | Plasma Physics and Controlled Fusion |
| Volume | 61 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - 1 Jan 2019 |
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Keywords
- cable guns
- deuterium
- gas puff
- ion acceleration
- neutrons
- z-pinch
ASJC Scopus subject areas
- Nuclear Energy and Engineering
- Condensed Matter Physics
Cite this
Acceleration of protons and deuterons up to 35 MeV and generation of 1013 neutrons in a megaampere deuterium gas-puff z-pinch. / Klir, D.; Shishlov, A. V.; Kokshenev, V. A.; Kubes, P.; Rezac, K.; Buryskova, S.; Cherdizov, R. K.; Cikhardt, J.; Cikhardtova, B.; Dudkin, G. N.; Engelbrecht, J. T.; Fursov, F. I.; Jackson, S. L.; Krasa, J.; Kravarik, J.; Kurmaev, N. E.; Munzar, V.; Padalko, V. N.; Ratakhin, N. A.; Sila, O.; Turek, K.; Varlachev, V. A.; Wagner, R.
In: Plasma Physics and Controlled Fusion, Vol. 61, No. 1, 014018, 01.01.2019.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Acceleration of protons and deuterons up to 35 MeV and generation of 1013 neutrons in a megaampere deuterium gas-puff z-pinch
AU - Klir, D.
AU - Shishlov, A. V.
AU - Kokshenev, V. A.
AU - Kubes, P.
AU - Rezac, K.
AU - Buryskova, S.
AU - Cherdizov, R. K.
AU - Cikhardt, J.
AU - Cikhardtova, B.
AU - Dudkin, G. N.
AU - Engelbrecht, J. T.
AU - Fursov, F. I.
AU - Jackson, S. L.
AU - Krasa, J.
AU - Kravarik, J.
AU - Kurmaev, N. E.
AU - Munzar, V.
AU - Padalko, V. N.
AU - Ratakhin, N. A.
AU - Sila, O.
AU - Turek, K.
AU - Varlachev, V. A.
AU - Wagner, R.
PY - 2019/1/1
Y1 - 2019/1/1
N2 - The acceleration of hydrogen ions up to 35 MeV is observed in the z-pinch experiments on the GIT-12 generator at a 3 MA current and 0.6 MV driving voltage. High ion energies are obtained with a novel configuration of a deuterium gas-puff z-pinch. In this configuration, a hollow cylindrical plasma shell is injected around an inner deuterium gas puff to form a homogeneous, uniformly conducting layer between electrodes at the initial phase of z-pinch implosion. The stable implosion at the velocity up to 650 km s-1 is important to deliver more current onto the z-pinch axis. Magnetohydrodynamic instabilities become apparent first at stagnation. After the disruptive development of m = 0 instabilities, ∼20 ns pulses of high-energy photons, neutrons, electrons, and ions are observed. The average neutron yield is 2 ×1012. The ion emission is characterized by various diagnostic techniques including those based on the usage of neutron-producing samples. When a large neutron-producing sample is placed onto the axis below a cathode mesh, the neutron yield is increased up to (1.1 ±0.3) ×1013. Considering a ∼130 kJ energy input into z-pinch plasmas and magnetic field, this implies the neutron production efficiency of ∼108 neutrons per one Joule of the z-pinch energy.
AB - The acceleration of hydrogen ions up to 35 MeV is observed in the z-pinch experiments on the GIT-12 generator at a 3 MA current and 0.6 MV driving voltage. High ion energies are obtained with a novel configuration of a deuterium gas-puff z-pinch. In this configuration, a hollow cylindrical plasma shell is injected around an inner deuterium gas puff to form a homogeneous, uniformly conducting layer between electrodes at the initial phase of z-pinch implosion. The stable implosion at the velocity up to 650 km s-1 is important to deliver more current onto the z-pinch axis. Magnetohydrodynamic instabilities become apparent first at stagnation. After the disruptive development of m = 0 instabilities, ∼20 ns pulses of high-energy photons, neutrons, electrons, and ions are observed. The average neutron yield is 2 ×1012. The ion emission is characterized by various diagnostic techniques including those based on the usage of neutron-producing samples. When a large neutron-producing sample is placed onto the axis below a cathode mesh, the neutron yield is increased up to (1.1 ±0.3) ×1013. Considering a ∼130 kJ energy input into z-pinch plasmas and magnetic field, this implies the neutron production efficiency of ∼108 neutrons per one Joule of the z-pinch energy.
KW - cable guns
KW - deuterium
KW - gas puff
KW - ion acceleration
KW - neutrons
KW - z-pinch
UR - http://www.scopus.com/inward/record.url?scp=85057596084&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85057596084&partnerID=8YFLogxK
U2 - 10.1088/1361-6587/aadc99
DO - 10.1088/1361-6587/aadc99
M3 - Article
VL - 61
JO - Plasma Physics and Controlled Fusion
JF - Plasma Physics and Controlled Fusion
SN - 0741-3335
IS - 1
M1 - 014018
ER -