Deuterium gas-puff z-pinches are very efficient laboratory sources of neutron pulses. Using a novel hybrid gas-puff load on the GIT-12 generator, a significant increase in the neutron yields up to 5.6×1012 is reached. At the same time, a very broad neutron energy spectrum up to energies on the order of tens of MeV is observed. In these experiments, the neutrons are produced not only by the D(d,n)3He (DD) nuclear reaction but also by reactions of multi-MeV deuterons with the experimental hardware. The angular distribution of the neutron fluence and dependence of the fluence on the distance from the z-pinch are measured using neutron activation diagnostics. By this method, a number of produced non-DD neutrons and anisotropy of DD neutron emission are evaluated.

1.
L. A.
Artsimovich
,
A. M.
Andrianov
,
E. N.
Dobrokhotov
,
S. Y.
Lukyanov
,
I. M.
Podgornyi
,
V. I.
Sinitsyn
, and
N. V.
Filippov
, “
Penetrating radiation from pulse discharges
,”
At. Energy
1
,
375
377
(
1956
).
2.
J. D.
Sethian
,
A. E.
Robson
,
K. A.
Gerber
, and
A. W.
DeSilva
, “
Enhanced stability and neutron production in a dense z-pinch plasma formed from a frozen deuterium fiber
,”
Phys. Rev. Lett.
59
,
892
895
(
1987
).
3.
D.
Klir
,
J.
Kravarik
,
P.
Kubes
,
Y. L.
Bakshaev
,
P.
Blinov
,
A.
Chernenko
,
S.
Danko
,
V.
Korolev
,
G.
Ustroev
,
M.
Ivanov
, and
C.
Hongchun
, “
Deuterated fibre Z-pinch on the S-300 generator
,”
Phys. Scr.
T123
,
116
119
(
2006
).
4.
S. A.
Slutz
,
J. E.
Bailey
,
G. A.
Chandler
,
G. R.
Bennett
,
G.
Cooper
,
J. S.
Lash
,
S.
Lazier
,
P.
Lake
,
R. W.
Lemke
,
T. A.
Mehlhorn
 et al, “
Dynamic hohlraum driven inertial fusion capsules
,”
Phys. Plasmas
10
,
1875
1882
(
2003
).
5.
C. L.
Ruiz
,
G. W.
Cooper
,
S. A.
Slutz
,
J. E.
Bailey
,
G. A.
Chandler
,
T. J.
Nash
,
T. A.
Mehlhorn
,
R. J.
Leeper
,
D.
Fehl
,
A. J.
Nelson
 et al, “
Production of thermonuclear neutrons from deuterium-filled capsule implosions driven by z-pinch dynamic hohlraums
,”
Phys. Rev. Lett.
93
,
015001
(
2004
).
6.
D. D.
Ryutov
,
M. S.
Derzon
, and
M. K.
Matzen
, “
The physics of fast z pinches
,”
Rev. Mod. Phys.
72
,
167
223
(
2000
).
7.
M. G.
Haines
, “
A review of the dense z-pinch
,”
Plasma Phys. Controlled Fusion
53
,
093001
(
2011
).
8.
A.
Fisher
,
F.
Maco
, and
J.
Shiloh
, “
Fast valve for gas injection into vacuum
,”
Rev. Sci. Instrum.
49
,
872
873
(
1978
).
9.
J.
Shiloh
,
A.
Fisher
, and
N.
Rostoker
, “
Z-pinch of a gas-jet
,”
Phys. Rev. Lett.
40
,
515
518
(
1978
).
10.
J.
Bailey
,
Y.
Ettinger
,
A.
Fisher
, and
N.
Rostoker
, “
Gas-puff z pinches with O2 and O2-Ar mixtures
,”
Appl. Phys. Lett.
40
,
460
462
(
1982
).
11.
A. V.
Batyunin
,
A. N.
Bulatov
,
V. D.
Vikharev
,
G.
Volkov
,
V.
Zaytsev
,
S.
Zakharov
,
S.
Komarov
,
S.
Nedoseev
,
L.
Nikandrov
,
L.
Oleinik
 et al, “
Issledovanie sverkhbystrogo deiterievogo z-pincha na ustanovke ‘angara-5-1’
,”
Fiz. Plazmy
16
,
1027
1035
(
1990
).
12.
A. V.
Batyunin
,
A. N.
Bulatov
,
V. I.
Zaitsev
, and
G. M.
Oleinik
, “
Neutron diagnostics on the Angara-5 assembly
,”
Sov. At. Energy
71
,
981
988
(
1991
).
13.
Z. A.
Al'bikov
,
E. P.
Velikhov
,
A. I.
Veretennikov
,
V. A.
Glukhikh
,
E. V.
Grabovskii
,
G. M.
Gryaznov
,
O. A.
Gusev
,
G. N.
Zhemchuzhnikov
,
V. I.
Zaitsev
,
O. A.
Zolotovskii
 et al, “
Angara-5-1 experimental complex
,”
At. Energy
68
,
34
45
(
1990
).
14.
R. B.
Spielman
,
G. T.
Baldwin
,
G.
Cooper
,
D.
Hebron
,
T. V.
Hussey
,
C.
Landron
,
R.
Leeper
,
S. F.
Lopez
,
J. S.
McGurn
,
D. J.
Muron
 et al, “
D-D fusion experiments using fast z pinches
,” Sandia Report,
1998
.
15.
C. A.
Coverdale
,
C.
Deeney
,
A. L.
Velikovich
,
R. W.
Clark
,
Y. K.
Chong
,
J.
Davis
,
J.
Chittenden
,
C. L.
Ruiz
,
G. W.
Cooper
,
A. J.
Nelson
 et al, “
Neutron production and implosion characteristics of a deuterium gas-puff z pinch
,”
Phys. Plasmas
14
,
022706
(
2007
).
16.
C. A.
Coverdale
,
C.
Deeney
,
A. L.
Velikovich
,
J.
Davis
,
R. W.
Clark
,
Y. K.
Chong
,
J.
Chittenden
,
S.
Chantrenne
,
C. L.
Ruiz
,
G. W.
Cooper
 et al, “
Deuterium gas-puff z-pinch implosions on the z accelerator
,”
Phys. Plasmas
14
,
056309
(
2007
).
17.
D.
Klir
,
J.
Kravarik
,
P.
Kubes
,
K.
Rezac
,
S. S.
Ananev
,
Y. L.
Bakshaev
,
P. I.
Blinov
,
A. S.
Chernenko
,
E. D.
Kazakov
,
V. D.
Korolev
 et al, “
Neutron energy distribution function reconstructed from time-of-flight signals in deuterium gas-puff z-pinch
,”
IEEE Trans. Plasma Sci.
37
,
425
432
(
2009
).
18.
D.
Klir
,
J.
Kravarik
,
P.
Kubes
,
K.
Rezac
,
J.
Cikhardt
,
E.
Litseva
,
T.
Hyhlik
,
S. S.
Ananev
,
Y. L.
Bakshaev
,
V. A.
Bryzgunov
 et al, “
Efficient production of 100 keV deuterons in deuterium gas puff Z-pinches at 2 MA current
,”
Plasma Phys. Controlled Fusion
52
,
065013
(
2010
).
19.
D.
Klir
,
A. V.
Shishlov
,
P.
Kubes
,
K.
Rezac
,
F. I.
Fursov
,
V. A.
Kokshenev
,
B. M.
Kovalchuk
,
J.
Kravarik
,
N. E.
Kurmaev
,
A. Y.
Labetsky
 et al, “
Deuterium gas puff z-pinch at currents of 2 to 3 mega-ampere
,”
Phys. Plasmas
19
,
032706
(
2012
).
20.
D.
Klir
,
A. V.
Shishlov
,
V. A.
Kokshenev
,
P.
Kubes
,
A. Yu.
Labetsky
,
K.
Rezac
,
J.
Cikhardt
,
F. I.
Fursov
,
B. M.
Kovalchuk
,
J.
Kravarik
 et al, “
Characterization of neutron emission from mega-ampere deuterium gas puff z-pinch at microsecond implosion times
,”
Plasma Phys. Controlled Fusion
55
,
085012
(
2013
).
21.
D.
Klir
,
P.
Kubes
,
K.
Rezac
,
J.
Cikhardt
,
J.
Kravarik
,
O.
Sila
,
A. V.
Shishlov
,
B. M.
Kovalchuk
,
N. A.
Ratakhin
,
V. A.
Kokshenev
 et al, “
Efficient neutron production from a novel configuration of deuterium gas-puff z-pinch
,”
Phys. Rev. Lett.
112
,
095001
(
2014
).
22.
D.
Klir
,
A. V.
Shishlov
,
V. A.
Kokshenev
,
P.
Kubes
,
A. Yu.
Labetsky
,
K.
Rezac
,
R. K.
Cherdizov
,
J.
Cikhardt
,
B.
Cikhardtova
,
G. N.
Dudkin
 et al, “
Efficient generation of fast neutrons by magnetized deuterons in an optimized deuterium gas-puff z-pinch
,”
Plasma Phys. Controlled Fusion
57
,
044005
(
2015
).
23.
J.
Cikhardt
,
D.
Klir
,
K.
Rezac
,
A. V.
Shishlov
,
R. K.
Cherdizov
,
B.
Cikhardtova
,
G. N.
Dudkin
,
F. I.
Fursov
,
V. A.
Kokshenev
,
J.
Kravarik
 et al, “
Neutron spectrum measured by activation diagnostics in deuterium gas-puff experiments on the 3 MA GIT-12 z-pinch
,”
IEEE Trans. Plasma Sci.
45
,
3209
(
2017
).
24.
D.
Klir
,
A. V.
Shishlov
,
V. A.
Kokshenev
,
P.
Kubes
,
A. Yu.
Labetsky
,
K.
Rezac
,
R. K.
Cherdizov
,
J.
Cikhardt
,
B.
Cikhardtova
,
G. N.
Dudkin
 et al, “
Deuterium z-pinch as a powerful source of multi-MeV ions and neutrons for advanced applications
,”
Phys. Plasmas
23
,
032702
(
2016
).
25.
D.
Klir
,
A. V.
Shishlov
,
V. A.
Kokshenev
,
P.
Kubes
,
K.
Rezac
,
R. K.
Cherdizov
,
J.
Cikhardt
,
B.
Cikhardtova
,
G. N.
Dudkin
,
F. I.
Fursov
 et al, “
Ion acceleration mechanism in mega-ampere gas-puff z-pinches
,”
New J. Phys.
20
,
053064
(
2018
).
26.
J. T.
Engelbrecht
,
S. L.
Jackson
,
A. A.
Mamonau
,
A. R.
Beresnyak
,
K.
Rezac
,
J.
Cikhardt
,
D.
Klir
,
B. V.
Weber
,
J. L.
Giuliani
, and
J. W.
Schumer
, “
Initial conditions in the HAWK dense plasma focus
,” in
IEEE Pulsed Power Plasma Science (PPPS)
(
2019
), pp.
1
5
.
27.
D.
Klir
,
A. V.
Shishlov
,
V. A.
Kokshenev
,
P.
Kubes
,
K.
Rezac
,
S.
Buryskova
,
R. K.
Cherdizov
,
J.
Cikhardt
,
B.
Cikhardtova
,
G. N.
Dudkin
 et al, “
Acceleration of protons and deuterons up to 35MeV and generation of 1013 neutrons in a megaampere deuterium gas-puff z-pinch
,”
Plasma Phys. Controlled Fusion
61
,
014018
(
2019
).
28.
D.
Klir
,
A. V.
Shishlov
,
S. L.
Jackson
,
V. A.
Kokshenev
,
P.
Kubes
,
K.
Rezac
,
A. R.
Beresnyak
,
R. K.
Cherdizov
,
J.
Cikhardt
,
B.
Cikhardtova
 et al, “
Spatial distribution of ion emission in gas-puff z-pinches and dense plasma foci
,”
Plasma Phys. Controlled Fusion
62
,
035009
(
2020
).
29.
D.
Klir
,
S. L.
Jackson
,
A. V.
Shishlov
,
V. A.
Kokshenev
,
K.
Rezac
,
A. R.
Beresnyak
,
R. K.
Cherdizov
,
J.
Cikhardt
,
B.
Cikhardtova
,
G. N.
Dudkin
,
J. T.
Engelbrecht
,
F. I.
Fursov
,
J.
Krasa
,
J.
Kravarik
,
P.
Kubes
,
N. E.
Kurmaev
,
V.
Munzar
,
N. A.
Ratakhin
,
K.
Turek
, and
V. A.
Varlachev
, “
Ion acceleration and neutron production in hybrid gas-puff z-pinches on the GIT-12 and HAWK generators
,”
Matter Radiat. Extremes
5
,
026401
(
2020
).
30.
M.
Drosg
,
Handbook on Nuclear Activation Data
(
International Atomic Energy Agency
,
Vienna
,
1987
).
31.
V. V.
Vikhrev
and
V. D.
Korolev
, “
Neutron generation from z-pinches
,”
Plasma Phys. Rep.
33
,
356
380
(
2007
).
32.
H.
Schmidt
,
P.
Kubes
,
M.
Sadowski
, and
M.
Scholz
, “
Neutron emission characteristics of pinched dense magnetized plasmas
,”
IEEE Trans. Plasma Sci.
34
,
2363
2367
(
2006
).
33.
O.
Sila
,
D.
Klir
,
K.
Rezac
,
B.
Cikhardtova
, and
J.
Cikhardt
, “
MCNP calculations of neutron emission anisotropy caused by the GIT-12 hardware
,”
Nukleonika
60
,
323
326
(
2015
).
34.
S. P.
Bugaev
,
A. M.
Volkov
,
A. A.
Kim
,
V. N.
Kiselev
,
B. M.
Kovalchuk
,
N. F.
Kovsharov
,
V. A.
Kokshenev
,
N. E.
Kurmaev
,
S. V.
Loginov
,
G. A.
Mesyats
 et al, “
Giti6: A megajoule pulse generator with plasma switch for a z-pinch load
,”
Russ. Phys. J.
40
,
1154
(
1997
).
35.
V. A.
Kokshenev
,
A. Yu.
Labetsky
,
B. M.
Kovalchuk
,
S. A.
Chaikovsky
,
A. V.
Fedunin
,
F. I.
Fursov
,
N. E.
Kurmaev
,
A. G.
Rousskikh
,
A. V.
Shishlov
, and
N. A.
Zhidkova
, “
Multi-shell plasma flow switch experiments on the GIT-12 generator
,” in
14th Symposium on High Current Electronics
, Tomsk, Russia, 10–15 September 2006, pp.
272
275
.
36.
R. J.
Leeper
,
C. L.
Ruiz
,
G. A.
Chandler
,
G. W.
Cooper
,
D. E.
Bower
,
D. N.
Fittinghoff
,
E. C.
Hagen
,
J. R.
Hollaway
,
I. J.
McKenna
,
L. A.
McPherson
 et al, “
Zr neutron diagnostic suite
,”
J. Phys.: Conf. Ser.
112
,
032076
(
2008
).
37.
S.
Jednorog
,
A.
Szydlowski
,
B.
Bienkowska
, and
R.
Prokopowicz
, “
The application of selected radionuclides for monitoring of the d-d reactions produced by dense plasma-focus device
,”
J. Radioanal. Nucl. Chem.
301
,
23
31
(
2014
).
38.
S.
Jednorog
,
M.
Paduch
,
K.
Szewczak
, and
E.
Laszynska
, “
Radioindium and determination of neutron radial asymmetry for the PF-1000 plasma focus device
,”
J. Radioanal. Nucl. Chem.
303
,
941
947
(
2015
).
39.
Standard Electrode Coaxial Ge Detector Data Sheet (Mirion Technologies,
2020
), available at https://mirion.s3.amazonaws.com/cms4_mirion/files/pdf/spec-sheets/ops-1441_sege_spec_sheet.pdf?1579447944.
40.
A. J.
Koning
and
D.
Rochman
, “
Modern nuclear data evaluation with the TALYS code system
,”
Nucl. Data Sheets
113
,
2841
2934
(
2012
).
41.
D.
Rochman
, “
TALYS-based evaluated nuclear data library
,” Sandia Meeting, Albuquerque, NM (
2014
).
42.
P. F.
Knapp
,
D. B.
Sinars
, and
K. D.
Hahn
, “
Diagnosing suprathermal ion populations in z-pinch plasmas using fusion neutron spectra
,”
Phys. Plasmas
20
,
062701
(
2013
).
43.
V. V.
Vikhrev
and
A. D.
Mironenko-Marenkov
, “
On the spectrum of z-pinch plasma neutrons
,”
Plasma Phys. Rep.
38
,
225
234
(
2012
).
44.
S.
Araki
,
Y.
Watanabe
,
T.
Kin
,
N.
Shigyo
, and
K.
Sagara
, “
Measurement of double differential neutron yields from thick aluminum target irradiated by 9 MeV deuteron
,” in
the Fourth International Symposium on Innovative Nuclear Energy Systems, INES-4
,
2015
[
Energy Procedia
71
(
Suppl. C
),
197
204
].
45.
K.
Rezac
,
D.
Klir
,
P.
Kubes
, and
J.
Kravarik
, “
Improvement of time-of-flight methods for reconstruction of neutron energy spectra from D(d,n)3He fusion reactions
,”
Plasma Phys. Controlled Fusion
54
,
105011
(
2012
).
46.
M. J.
Sadowski
and
M.
Scholz
, “
Results of large scale plasma-focus experiments and prospects for neutron yield optimization
,”
Nukleonika
47
,
31
37
(
2002
).
47.
S.
Jednorog
,
A.
Szydlowski
,
M.
Scholz
,
M.
Paduch
, and
B.
Bienkowska
, “
Preliminary determination of angular distribution of neutrons emitted from PF-1000 facility by indium activation
,”
Nukleonika
57
,
563
568
(
2012
).
48.
P.
Kubes
,
J.
Kravarik
,
D.
Klir
,
K.
Rezac
,
M.
Bohata
,
M.
Scholz
,
M.
Paduch
,
K.
Tomaszewski
,
I.
Ivanova-Stanik
,
L.
Karpinski
 et al, “
Determination of deuteron energy distribution from neutron diagnostics in a plasma-focus device
,”
IEEE Trans. Plasma Sci.
37
,
83
87
(
2009
).
49.
M.
Sadowski
,
J.
Zebrowski
,
E.
Rydygier
, and
J.
Kucinski
, “
Ion emission from plasma-focus facilities
,”
Plasma Phys. Controlled Fusion
30
,
763
769
(
1988
).
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