The Z facility at the Sandia National Laboratories is the most energetic terrestrial source of X-rays and provides an opportunity to produce photoionized plasmas in a relatively well characterised radiation environment. We use detailed atomic-kinetic and spectral simulations to analyze the absorption spectra of a photoionized neon plasma driven by the x-ray flux from a z-pinch. The broadband x-ray flux both photoionizes and backlights the plasma. In particular, we focus on extracting the charge state distribution of the plasma and the characteristics of the radiation field driving the plasma in order to estimate the ionisation parameter.
REFERENCES
1.
G.
Ferland
, “Quantitative spectroscopy of photoionized clouds
,” Annu. Rev. Astron. Astrophys.
41
, 517
–554
(2003
).2.
J. S.
Kaastra
, R.
Mewe
, D. A.
Liedahl
, S.
Komossa
, and A. C.
Brinkman
, “X-ray absorption lines in the Seyfert 1 galaxy NGC 5548 discovered with Chandra-LETGS
,” Astron. Astrophys.
354
, L83
–L86
(2000
).3.
J. S.
Kaastra
, K. C.
Steenbrugge
, A. J. J.
Raassen
, R. L. J.
van der Meer
, A. C.
Brinkman
, D. A.
Liedahl
, E.
Behar
, and A.
de Rosa
, “X-ray spectroscopy of NGC 5548
,” Astron. Astrophys.
386
, 427
–445
(2002
).4.
M.
Sako
, S. M.
Kahn
, E.
Behar
, J. S.
Kaastra
, A. C.
Brinkman
, Th.
Boller
, E. M.
Puchnarewicz
, R.
Starling
, D. A.
Liedahl
, J.
Clavel
, and M.
Santos-Lleo
, “Complex resonance absorption structure in the x-ray spectrum of IRAS 13349+2438
,” Astron. Astrophys.
365
, L168
–L173
(2001
).5.
Y.
Krongold
, F.
Nicastro
, N. S.
Brickhouse
, M.
Elvis
, D. A.
Liedahl
, and M. S.
Mathur
, “Toward a self-consistent model of the ionized absorber in NGC 3783
,” Astrophys. J.
597
, 832
–850
(2003
).6.
R. C.
Mancini
, J. E.
Bailey
, J. F.
Hawley
, T.
Kallman
, M.
Witthoeft
, S. J.
Rose
, and H.
Takabe
, “Accretion disk dynamics, photoionized plasmas, and stellar opacities
,” Phys. Plasmas
16
, 041001
(2009
).7.
D. A.
Liedahl
, S. M.
Kahn
, A. L.
Osterheld
, and W. H.
Goldstein
, “X-ray spectral signatures of photoionized plasmas
,” Astrophys. J.
350
, L37
(1990
).8.
J. E.
Bailey
, D.
Cohen
, G. A.
Chandler
, M. E.
Cuneo
, M. E.
Foord
, R. F.
Heeter
, D.
Jobe
, P.
Lake
, D. A.
Liedahl
, J. J.
MacFarlane
, T. J.
Nash
, D.
Nielson
, R.
Smelser
, and W. A.
Stygar
, “Neon photoionization experiments driven by z-pinch radiation
,” J. Quant. Spectrosc. Radiat. Transfer
71
, 157
–168
(2001
).9.
R. F.
Heeter
, J. E.
Bailey
, M. E.
Cuneo
, J.
Emig
, M. E.
Foord
, P. T.
Springer
, and R. S.
Thoe
, Rev. Sci. Instrum.
72
, 1224
(2001
).10.
S. J.
Rose
, P. A. M.
van Hoof
, V.
Jonauskas
, F. P.
Keenan
, R.
Kisielius
, C.
Ramsbottom
, M. E.
Foord
, R. F.
Heeter
, and P. T.
Springer
, J. Phys. B: At. Mol. Phys.
37
, L337
(2004
).11.
M. E.
Foord
, R. F.
Heeter
, P. A. M.
van Hoof
, R. S.
Thoe
, J. E.
Bailey
, M. E.
Cuneo
, H. K.
Chung
, D. A.
Liedahl
, K. B.
Fournier
, G. A.
Chandler
, V.
Jonauskas
, R.
Kisielius
, L. P.
Mix
, C.
Ramsbottom
, P. T.
Springer
, F. P.
Keenan
, S. J.
Rose
, and W. H.
Goldstein
, “Charge-state distribution and Doppler effect in expanding photoionized plasma
,” Phys. Rev. Lett.
93
, 055002
(2004
).12.
Y.
Morita
, H.
Nishimura
, Y.
Ochi
, K.
Fujita
, M.
Fukao
, M.
Suzuki
, T.
Kawamura
, H.
Daido
, and H.
Takabe
, “Model calculations and experiments on photoionized plasmas in relevant to laboratory astrophysics
,” J. Quant. Spectrosc. Radiat. Transfer
71
, 519
–529
(2001
).13.
P. A. M.
Van Hoof
, M. E.
Foord
, R. F.
Heeter
, J. E.
Bailey
, H. K.
Chung
, M. E.
Cuneo
, W. H.
Goldstein
, V.
Jonauskas
, F. P.
Keenan
, R.
Kisielius
, D. A.
Liedahl
, C.
Ramsbottom
, S. J.
Rose
, P. T.
Springer
, and R. S.
Thoe
, “Modeling x-ray photoionized plasmas produced at the sandia z-facility
,” Astrophys. Space Sci.
298
, 147
–153
(2005
).14.
D. H.
Cohen
, J. J.
MacFarlane
, J. E.
Bailey
, and D. A.
Liedahl
, “X-ray spectral diagnostics of neon photoionization experiments on the z-machine
,” Rev. Sci. Instrum.
74
, 1962
–1965
(2003
).15.
F.
Wang
, S.
Fujioka
, H.
Nishimura
, D.
Kato
, Y.
Li
, G.
Zhao
, J.
Zhang
, and H.
Takabe
, Phys. Plasmas
15
, 073108
(2008
).16.
S.
Fujioka
, H.
Takabe
, N.
Yamamoto
, D.
Salzmann
, F.
Wang
, H.
Nishimura
, Y.
Li
, Q.
Dong
, S.
Wang
, Y.
Zhang
, Y.
Rhee
, Y.
Lee
, J.
Han
, M.
Tanabe
, T.
Fujiwara
, Y.
Nakabayashi
, G.
Zhao
, J.
Zhang
, and K.
Mima
, Nat. Phys.
5
, 821
(2009
).17.
E.
Hill
and S.
Rose
, Phys. Plasmas
17
, 103301
(2010
).18.
J. E.
Bailey
, G. A.
Rochau
, R. C.
Mancini
, C. A.
Iglesias
, J. J.
MacFarlane
, I. E.
Golovkin
, J. C.
Pain
, F.
Gilleron
, C.
Blancard
, Ph.
Cosse
, G.
Faussurier
, G. A.
Chandler
, T. J.
Nash
, D. S.
Nielsen
, and P. W.
Lake
, “Diagnosis of x-ray heated Mg/Fe opacity research plasmas
,” Rev. Sci. Instrum.
79
, 113104
(2008
).19.
I. M.
Hall
, T.
Durmaz
, R. C.
Mancini
, J. E.
Bailey
, and G. A.
Rochau
, Rev. Sci. Instrum.
81
, 10E324
(2010
).20.
I. M.
Hall
, T.
Durmaz
, R. C.
Mancini
, J. E.
Bailey
, G. A.
Rochau
, M. J.
Rosenberg
, D. H.
Cohen
, I. E.
Golovkin
, J. J.
MacFarlane
, M. E.
Sherrill
, J.
Abdallah
, R. F.
Heeter
, M. E.
Foord
, S. H.
Glenzer
, and H. A.
Scott
, “Modelling, design and diagnostics for a photoionised plasma experiment
,” Astrophys. Space Sci.
322
, 117
–121
(2009
).21.
I. M.
Hall
, T.
Durmaz
, R. C.
Mancini
, J. E.
Bailey
, and G. A.
Rochau
, Astrophys. Space Sci.
336
, 189
(2011
).22.
J. J.
MacFarlane
, “VISRAD—A 3-D viewfactor code and design tool for high-energy density physics experiments
,” J. Quant. Spectrosc. Radiat. Transfer
81
, 287
–300
(2003
).23.
J. J.
MacFarlane
, I. E.
Golovkin
, and P. R.
Woodruff
, “HELIOS-CR - A 1-D radiation-magnetohydrodynamics code with inline atomic kinetics modeling
,” J. Quant. Spectrosc. Radiat. Transfer
99
, 381
–397
(2006
).24.
J. J.
MacFarlane
, I. E.
Golovkin
, P. R.
Woodruff
, D. R.
Welch
, B. V.
Oliver
, T. A.
Mehlhorn
, and R. B.
Campbell
, “Simulation of the ionization dynamics of aluminium irradiated by intense short-pulse lasers
,” in Proceedings of Inertial Fusion and Science Applications
(2003
), p. 457
.25.
M. F.
Gu
, “The flexible atomic code
,” Can. J. Phys.
86
, 675
–689
(2008
).26.
R. C.
Mancini
, D. P.
Kilcrease
, L. A.
Woltz
, and C. F.
Hooper
, Jr., “Calculational aspects of the Stark line broadening of multi-electron ions in plasmas
,” Comput. Phys. Commun.
63
, 314
–322
(1991
).27.
28.
D. E.
Goldberg
, Genetic Algorithms in Search, Optimization, and Machine Learning
(Addison-Wesley
, 1989
).29.
I. E.
Golovkin
, R. C.
Mancini
, S. J.
Louis
, R. W.
Lee
, and L.
Klein
, “Analysis of x-ray spectral data with genetic algorithms
,” J. Quant. Spectrosc. Radiat. Transfer
75
, 625
–636
(2002
).30.
C. B.
Tarter
, W. H.
Tucker
, and E. E.
Salpeter
, “The interaction of x-ray sources with optically thin environments
,” Astrophys. J.
156
, 943
–951
(1969
).31.
B.
Remington
, R. P.
Drake
, and D. D.
Ryutov
, “Experimental astrophysics with high power lasers and z pinches
,” Rev. Mod. Phys.
78
, 755
–807
(2006
).32.
W. H.
Press
, B. P.
Flannery
, S. A.
Teukolsky
, and W. T.
Vetterling
, Numerical Recipes
(Cambridge University Press
, 1992
).33.
G. J.
Ferland
, K. T.
Korista
, D. A.
Verner
, J. W.
Ferguson
, J. B.
Kingdon
, and E. M.
Verner
, “CLOUDY 90: Numerical simulation of plasmas and their spectra
,” Publ. Astron. Soc. Pac.
110
, 761
–778
(1998
).34.
S.
Kaspi
, W. N.
Brandt
, H.
Netzer
, R.
Sambruna
, G.
Chartas
, G. P.
Garmire
, and J. A.
Nousek
, “Discovery of narrow X-ray absorption lines from NGC3783 with the CHANDRA high energy transmission grating spectrometer
,” Astrophys. J.
535
, L17
–L20
(2000
).35.
S.
Kaspi
, W. N.
Brandt
, H.
Netzer
, I. M.
George
, G.
Chartas
, E.
Behar
, R. M.
Sambruna
, G. P.
Garmire
, and J. A.
Nousek
, “High resolution X-ray spectroscopy and modeling of the absorbing and emitting outflow in NGC3783
,” Astrophys. J.
554
, 216
–232
(2001
).© 2014 AIP Publishing LLC.
2014
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