Efficient neutron production from a novel configuration of deuterium gas-puff z-pinch

Abstract

A novel configuration of a deuterium z pinch has been used to generate fusion neutrons. Injecting an outer hollow cylindrical plasma shell around an inner deuterium gas puff, neutron yields from DD reactions reached Yn=(2.9±0.3)×1012 at 700 ns implosion time and 2.7 MA current. Such a neutron yield means a tenfold increase in comparison with previous deuterium gas puff experiments at the same current generator. The increase of beam-target yields was obtained by a larger amount of current assembled on the z-pinch axis, and subsequently by higher induced voltage and higher energies of deuterons. A stack of CR-39 track detectors on the z-pinch axis showed hydrogen ions up to 38 MeV. Maximum neutron energies of 15 and 22 MeV were observed by radial and axial time-of-flight detectors, respectively. The number of DD neutrons per one joule of stored plasma energy approached 5×107. This implies that deuterium gas puff z pinches belong to the most efficient plasma-based sources of DD neutrons.

Original language	English
Article number	095001
Journal	Physical Review Letters
Volume	112
Issue number	9
DOIs	https://doi.org/10.1103/PhysRevLett.112.095001
Publication status	Published - 3 Mar 2014

ASJC Scopus subject areas

Physics and Astronomy(all)

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10.1103/PhysRevLett.112.095001

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Klir, D., Kubes, P., Rezac, K., Cikhardt, J., Kravarik, J., Sila, O., Shishlov, A. V., Kovalchuk, B. M., Ratakhin, N. A., Kokshenev, V. A., Labetsky, A. Y., Cherdizov, R. K., Fursov, F. I., Kurmaev, N. E., Dudkin, G. N., Nechaev, B. A., Padalko, V. N., Orcikova, H., & Turek, K. (2014). Efficient neutron production from a novel configuration of deuterium gas-puff z-pinch. Physical Review Letters, 112(9), [095001]. https://doi.org/10.1103/PhysRevLett.112.095001

Efficient neutron production from a novel configuration of deuterium gas-puff z-pinch. / Klir, D.; Kubes, P.; Rezac, K.; Cikhardt, J.; Kravarik, J.; Sila, O.; Shishlov, A. V.; Kovalchuk, B. M.; Ratakhin, N. A.; Kokshenev, V. A.; Labetsky, A. Yu; Cherdizov, R. K.; Fursov, F. I.; Kurmaev, N. E.; Dudkin, G. N.; Nechaev, B. A.; Padalko, V. N.; Orcikova, H.; Turek, K.

In: Physical Review Letters, Vol. 112, No. 9, 095001, 03.03.2014.

Research output: Contribution to journal › Article

Klir, D, Kubes, P, Rezac, K, Cikhardt, J, Kravarik, J, Sila, O, Shishlov, AV, Kovalchuk, BM, Ratakhin, NA, Kokshenev, VA, Labetsky, AY, Cherdizov, RK, Fursov, FI, Kurmaev, NE, Dudkin, GN , Nechaev, BA , Padalko, VN, Orcikova, H & Turek, K 2014, 'Efficient neutron production from a novel configuration of deuterium gas-puff z-pinch', Physical Review Letters, vol. 112, no. 9, 095001. https://doi.org/10.1103/PhysRevLett.112.095001

Klir, D. ; Kubes, P. ; Rezac, K. ; Cikhardt, J. ; Kravarik, J. ; Sila, O. ; Shishlov, A. V. ; Kovalchuk, B. M. ; Ratakhin, N. A. ; Kokshenev, V. A. ; Labetsky, A. Yu ; Cherdizov, R. K. ; Fursov, F. I. ; Kurmaev, N. E. ; Dudkin, G. N. ; Nechaev, B. A. ; Padalko, V. N. ; Orcikova, H. ; Turek, K. / Efficient neutron production from a novel configuration of deuterium gas-puff z-pinch. In: Physical Review Letters. 2014 ; Vol. 112, No. 9.

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title = "Efficient neutron production from a novel configuration of deuterium gas-puff z-pinch",

abstract = "A novel configuration of a deuterium z pinch has been used to generate fusion neutrons. Injecting an outer hollow cylindrical plasma shell around an inner deuterium gas puff, neutron yields from DD reactions reached Yn=(2.9±0.3)×1012 at 700 ns implosion time and 2.7 MA current. Such a neutron yield means a tenfold increase in comparison with previous deuterium gas puff experiments at the same current generator. The increase of beam-target yields was obtained by a larger amount of current assembled on the z-pinch axis, and subsequently by higher induced voltage and higher energies of deuterons. A stack of CR-39 track detectors on the z-pinch axis showed hydrogen ions up to 38 MeV. Maximum neutron energies of 15 and 22 MeV were observed by radial and axial time-of-flight detectors, respectively. The number of DD neutrons per one joule of stored plasma energy approached 5×107. This implies that deuterium gas puff z pinches belong to the most efficient plasma-based sources of DD neutrons.",

author = "D. Klir and P. Kubes and K. Rezac and J. Cikhardt and J. Kravarik and O. Sila and Shishlov, {A. V.} and Kovalchuk, {B. M.} and Ratakhin, {N. A.} and Kokshenev, {V. A.} and Labetsky, {A. Yu} and Cherdizov, {R. K.} and Fursov, {F. I.} and Kurmaev, {N. E.} and Dudkin, {G. N.} and Nechaev, {B. A.} and Padalko, {V. N.} and H. Orcikova and K. Turek",

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AU - Sila, O.

AU - Shishlov, A. V.

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AU - Kokshenev, V. A.

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AU - Cherdizov, R. K.

AU - Fursov, F. I.

AU - Kurmaev, N. E.

AU - Dudkin, G. N.

AU - Nechaev, B. A.

AU - Padalko, V. N.

AU - Orcikova, H.

AU - Turek, K.

PY - 2014/3/3

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N2 - A novel configuration of a deuterium z pinch has been used to generate fusion neutrons. Injecting an outer hollow cylindrical plasma shell around an inner deuterium gas puff, neutron yields from DD reactions reached Yn=(2.9±0.3)×1012 at 700 ns implosion time and 2.7 MA current. Such a neutron yield means a tenfold increase in comparison with previous deuterium gas puff experiments at the same current generator. The increase of beam-target yields was obtained by a larger amount of current assembled on the z-pinch axis, and subsequently by higher induced voltage and higher energies of deuterons. A stack of CR-39 track detectors on the z-pinch axis showed hydrogen ions up to 38 MeV. Maximum neutron energies of 15 and 22 MeV were observed by radial and axial time-of-flight detectors, respectively. The number of DD neutrons per one joule of stored plasma energy approached 5×107. This implies that deuterium gas puff z pinches belong to the most efficient plasma-based sources of DD neutrons.

AB - A novel configuration of a deuterium z pinch has been used to generate fusion neutrons. Injecting an outer hollow cylindrical plasma shell around an inner deuterium gas puff, neutron yields from DD reactions reached Yn=(2.9±0.3)×1012 at 700 ns implosion time and 2.7 MA current. Such a neutron yield means a tenfold increase in comparison with previous deuterium gas puff experiments at the same current generator. The increase of beam-target yields was obtained by a larger amount of current assembled on the z-pinch axis, and subsequently by higher induced voltage and higher energies of deuterons. A stack of CR-39 track detectors on the z-pinch axis showed hydrogen ions up to 38 MeV. Maximum neutron energies of 15 and 22 MeV were observed by radial and axial time-of-flight detectors, respectively. The number of DD neutrons per one joule of stored plasma energy approached 5×107. This implies that deuterium gas puff z pinches belong to the most efficient plasma-based sources of DD neutrons.

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