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 | |
| Publication status | Published - 3 Mar 2014 |
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ASJC Scopus subject areas
- Physics and Astronomy(all)
Cite this
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
}
TY - JOUR
T1 - Efficient neutron production from a novel configuration of deuterium gas-puff z-pinch
AU - Klir, D.
AU - Kubes, P.
AU - Rezac, K.
AU - Cikhardt, J.
AU - Kravarik, J.
AU - Sila, O.
AU - Shishlov, A. V.
AU - Kovalchuk, B. M.
AU - Ratakhin, N. A.
AU - Kokshenev, V. A.
AU - Labetsky, A. Yu
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
Y1 - 2014/3/3
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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U2 - 10.1103/PhysRevLett.112.095001
DO - 10.1103/PhysRevLett.112.095001
M3 - Article
AN - SCOPUS:84897680983
VL - 112
JO - Physical Review Letters
JF - Physical Review Letters
SN - 0031-9007
IS - 9
M1 - 095001
ER -