We have investigated plasma stagnation and interaction effects in colliding laser-produced plasmas. For generating colliding plasmas, two split laser beams were line-focused onto a hemi-circular target and the seed plasmas so produced were allowed to expand in mutually orthogonal directions. This experimental setup forced the expanding seed plasmas to come to a focus at the center of the chamber. The interpenetration and stagnation of plasmas of candidate fusion wall materials, viz., carbon and tungsten, and other materials, viz., aluminum, and molybdenum were investigated in this study. Fast-gated imaging, Faraday cup ion analysis, and optical emission spectroscopy were used for diagnosing seed and colliding plasma plumes. Our results show that high-Z target (W, Mo) plasma ions interpenetrate each other, while low-Z (C, Al) plasmas stagnate at the collision plane. For carbon seed plasmas, an intense stagnation was observed resulting in longer plasma lifetime; in addition, the stagnation layer was found to be rich with C2 dimers.
REFERENCES
1.
P.
Hough
, P.
Hayden
, C.
Fallon
, T. J.
Kelly
, C.
McLoughin
, P.
Yeates
, J. P.
Mosnier
, E. T.
Kennedy
, S. S.
Harilal
, and J. T.
Costello
, “Ion emission in collisions between two laser-produced plasmas
,” J. Phys. D
44
, 355203
(2011
).2.
E.
Irissou
, F.
Vidal
, T.
Johnston
, M.
Chaker
, D.
Guay
, and A. N.
Ryabinin
, “Influence of an inert background gas on bimetallic cross-beam pulsed laser deposition
,” J. Appl. Phys.
99
, 034904
(2006
).3.
P. W.
Rambo
and J.
Denavit
, “Interpenetration and ion separation in colliding plasmas
,” Phys. Plasmas
1
, 4050
–4060
(1994
).4.
P.
Yeates
, C.
Fallon
, E. T.
Kennedy
, and J. T.
Costello
, “Charge resolved electrostatic diagnostic of colliding copper laser plasma plumes
,” Phys. Plasmas
18
, 103104
(2011
).5.
D. D.
Ryutov
, N. L.
Kugland
, M. C.
Levy
, C.
Plechaty
, J. S.
Ross
, and H. S.
Park
, “Magnetic field advection in two interpenetrating plasma streams
,” Phys. Plasmas
20
, 032703
(2013
).6.
S. L.
Gupta
, P. K.
Pandey
, and R. K.
Thareja
, “Dynamics of laser ablated colliding plumes
,” Phys. Plasmas
20
, 013511
(2013
).7.
C. S.
Ake
, R. S.
de Castro
, H.
Sobral
, and M.
Villagran-Muniz
, “Plume dynamics of cross-beam pulsed-laser ablation of graphite
,” J. Appl. Phys.
100
, 053305
(2006
).8.
T.
Kono
, A.
Ishikawa
, S.
Misaki
, A.
Sunahara
, S.
Tanaka
, T.
Yabuuchi
, Y.
Hirooka
, and K. A.
Tanaka
, “Material dependence on plasma shielding induced by laser ablation
,” Plasma Fusion Res.
7
, 2405065
(2012
).9.
K. A.
Tanaka
, A.
Hassanein
, Y.
Hirooka
, T.
Kono
, S.
Misaki
, T.
Ohishi
, A.
Sunahara
, and S.
Tanaka
, “Carbon plume stagnation: Platform for vapor shield study
,” Fusion Sci. Technol.
60
, 329
–333
(2011
).10.
E.
Leboucher-Dalimier
, P.
Angelo
, P.
Gauthier
, P.
Sauvan
, A.
Poquerusse
, H.
Derfoul
, T.
Ceccotti
, C. A.
Back
, T. D.
Shepard
, E.
Forster
, I.
Uschmann
, and M.
Vollbrecht
, “X-ray spectroscopy and imaging of hot dense plasma created by colliding foils. Simulation of spectra
,” J. Quantitative Spectrosc. Radiat. Transfer
58
, 721
–735
(1997
).11.
R. T.
Eagleton
, J. M.
Foster
, P. A.
Rosen
, and P.
Graham
, “One-dimensional time resolved soft x-ray imaging of colliding plasmas in a laser heated cavity
,” Rev. Sci. Instrum.
68
, 834
–837
(1997
).12.
M.
Purvis
, J.
Grava
, J.
Filevich
, M. C.
Marconi
, J.
Dunn
, S. J.
Moon
, V. N.
Shlyaptsev
, E.
Jankowska
, and J. J.
Rocca
, “Dynamics of converging laser-created plasmas in semicylindrical cavities studied using soft x-ray laser interferometry
,” Phys. Rev. E
76
, 046402
(2007
).13.
S. S.
Harilal
, C. V.
Bindhu
, and H. J.
Kunze
, “Time evolution of colliding laser produced magnesium plasmas investigated using a pinhole camera
,” J. Appl. Phys.
89
, 4737
–4740
(2001
).14.
H.
Luna
, K. D.
Kavanagh
, and J. T.
Costello
, “Study of a colliding laser-produced plasma by analysis of time- and space-resolved image spectra
,” J. Appl. Phys.
101
, 033302
(2007
).15.
A.
Tselev
, A.
Gorbunov
, and W.
Pompe
, “Cross-beam pulsed laser deposition: General characteristic
,” Rev. Sci. Instrum.
72
, 2665
–2672
(2001
).16.
S.
Witanachchi
, A. M.
Miyawa
, and P.
Mukherjee
, “Highly ionized carbon plasma generation by dual-laser ablation for diamond-like carbon film growth
,” in MRS Proceedings
617
, J3
–6
1
–J
3
–6
(2000
).17.
S. S.
Harilal
, C. V.
Bindhu
, V. P.
Shevelko
, and H. J.
Kunze
, “Charge-exchange collisions in interpenetrating laser-produced magnesium plasmas
,” Laser Part. Beams
19
, 99
–103
(2001
).18.
S. S.
Harilal
, C. V.
Bindhu
, V. P.
Shevelko
, and H. J.
Kunze
, “XUV diagnostics of colliding laser-produced magnesium plasmas
,” J. Phys. B
34
, 3717
–3726
(2001
).19.
A. S.
Wan
, T. W.
Barbee
, R.
Cauble
, P.
Celliers
, L. B.
DaSilva
, J. C.
Moreno
, P. W.
Rambo
, G. F.
Stone
, J. E.
Trebes
, and F.
Weber
, “Electron density measurement of a colliding plasma using soft-x-ray laser interferometry
,” Phys. Rev. E
55
, 6293
–6296
(1997
).20.
R. C.
Elton
, D. M.
Billings
, C. K.
Manka
, H. R.
Griem
, J.
Grun
, B. H.
Ripin
, and J.
Resnick
, “Spectroscopic diagnostics in a colliding-blast-wave experiment
,” Phys. Rev. E
49
, 1512
–1519
(1994
).21.
H.
Sato
, Y.
Hirooka
, K. A.
Tanaka
, and K.
Ishihara
, “Dynamics of colliding ablation plumes
,” J. Plasma Fusion Res. Ser.
9
, 432
–435
(2010
).22.
T. J.
Renk
, C. L.
Olson
, T. J.
Tanaka
, M. A.
Ulrickson
, G. A.
Rochau
, R. R.
Peterson
, I. E.
Golovkin
, M. O.
Thompson
, T. R.
Knowles
, A. R.
Raffray
, and M. S.
Tillack
, “IFE chamber dry wall materials response to pulsed X-rays and ions at power-plant level fluences
,” Fusion Eng. Des.
65
, 399
–406
(2003
).23.
Y.
Hirooka
, T.
Oishi
, H.
Sato
, and K. A.
Tanaka
, “Aerosol formation and hydrogen co-deposition by colliding ablation plasma plumes of carbon
,” Fusion Sci. Technol.
60
, 804
–808
(2011
).24.
Y.
Hirooka
, K. A.
Tanaka
, H.
Sato
, K.
Ishihara
, and A.
Sunahara
, “Laboratory experiments on cluster/aerosol formation by colliding ablation plumes
,” J. Phys. Conf. Ser.
244
, 032033
(2010
).25.
Y.
Hirooka
, N.
Omoto
, T.
Oishi
, and K. A.
Tanaka
, “Aerosol formation and hydrogen co-deposition by colliding ablation plasma plumes of lithium and lead
,” Fusion Eng. Des.
87
, 1760
–1764
(2012
).26.
K. F.
Al-Shboul
, S. S.
Harilal
, and A.
Hassanein
, “Gas dynamic effects on formation of carbon dimers in laser-produced plasmas
,” Appl. Phys. Lett.
99
, 131506
(2011
).27.
K. F.
Al-Shboul
, S. S.
Harilal
, and A.
Hassanein
, “Emission features of femtosecond laser ablated carbon plasma in ambient helium
,” J. Appl. Phys.
113
, 163305
(2013
).28.
S. S.
Harilal
, M. P.
Polek
, and A.
Hassanein
, “Jetlike emission from colliding laser-produced plasmas
,” IEEE Trans. Plasma Sci.
39
, 2780
–2781
(2011
).29.
A.
Yogo
, K.
Sato
, M.
Nishikino
, M.
Mori
, T.
Teshima
, H.
Numasaki
, M.
Murakami
, Y.
Demizu
, S.
Akagi
, S.
Nagayama
, K.
Ogura
, A.
Sagisaka
, S.
Orimo
, M.
Nishiuchi
, A. S.
Pirozhkov
, M.
Ikegami
, M.
Tampo
, H.
Sakaki
, M.
Suzuki
, I.
Daito
, Y.
Oishi
, H.
Sugiyama
, H.
Kiriyama
, H.
Okada
, S.
Kanazawa
, S.
Kondo
, T.
Shimomura
, Y.
Nakai
, M.
Tanoue
, H.
Sasao
, D.
Wakai
, P. R.
Bolton
, and H.
Daido
, “Application of laser-accelerated protons to the demonstration of DNA double-strand breaks in human cancer cells
,” Appl. Phys. Lett.
94
, 181502
(2009
).30.
G.
Baraldi
, A.
Perea
, and C. N.
Afonso
, “Dynamics of ions produced by laser ablation of several metals at 193 nm
,” J. Appl. Phys.
109
, 043302
–043306
(2011
).31.
A.
Sunahara
and K. A.
Tanaka
, “Atomic number Z dependence of dynamics of laser-ablated materials
,” Fusion Eng. Des.
85
, 935
–939
(2010
).32.
F.
Nazar
, S. S.
Harilal
, H.
Ding
, and A.
Hassanein
, “Kinetics of ion and prompt electron emission from laser-produced plasma
,” Phys. Plasmas
20
, 073114
(2013
).33.
J.
Dardis
and J. T.
Costello
, “Stagnation layers at the collision front between two laser-induced plasmas: A study using time-resolved imaging and spectroscopy
,” Spectrochim. Acta Part B: Atom. Spectrosc.
65
, 627
–635
(2010
).34.
R.
Janmohamed
, G.
Redman
, and Y. Y.
Tsui
, “Space charge effects in faraday cup ion detectors
,” IEEE Trans. Plasma Sci.
34
, 455
–459
(2006
).35.
D.
Doria
, A.
Lorusso
, F.
Belloni
, and V.
Nassisi
, “Characterization of a nonequilibrium XeCl laser-plasma by a movable Faraday cup
,” Rev. Sci. Instrum.
75
, 387
–392
(2004
).36.
B.
Verhoff
, S. S.
Harilal
, and A.
Hassanein
, “Angular emission of ions and mass deposition from femtosecond and nanosecond laser-produced plasmas
,” J. Appl. Phys.
111
, 123304
(2012
).37.
A.
Thum-Jager
and K.
Rohr
, “Angular emission distributions of neutrals and ions in laser ablated particle beams
,” J. Phys. D: Appl. Phys.
32
, 2827
–2831
(1999
).38.
F.
Caridi
, L.
Torrisi
, D.
Margarone
, and A.
Borrielli
, “Investigations on low temperature laser-generated plasmas
,” Laser Part. Beams
26
, 265
–271
(2008
).39.
R. W. B.
Pearse
and A. G.
Gaydon
, The Identification of Molecular Spectra
(Chapman and Hall
, London
, 1965
).40.
W.
Weltner
and R. J.
Vanzee
, “Carbon molecules, ions, and clusters
,” Chem. Rev.
89
, 1713
–1747
(1989
).41.
G.
Herzberg
, “Spectra of diatomic molecules
,” in Molecular Spectra and Molecular Structure
(Van Nostrand
, New York
, 1950
).© 2014 AIP Publishing LLC.
2014
AIP Publishing LLC
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