Bright x-ray sources from laser irradiation of foams with high concentration of Ti

被引：25

作者：

Perez, F. ^{[1
]}

Patterson, J. R. ^{[1
]}

May, M. ^{[1
]}

Colvin, J. D. ^{[1
]}

Biener, M. M. ^{[1
]}

Wittstock, A. ^{[1
]}

Kucheyev, S. O. ^{[1
]}

Charnvanichborikarn, S. ^{[1
]}

Satcher, J. H., Jr. ^{[1
]}

Gammon, S. A. ^{[1
]}

Poco, J. F. ^{[1
]}

Fujioka, S. ^{[2
]}

Zhang, Z. ^{[2
]}

Ishihara, K. ^{[2
]}

Tanaka, N. ^{[2
]}

Ikenouchi, T. ^{[2
]}

Nishimura, H. ^{[2
]}

Fournier, K. B. ^{[1
]}

机构：

[1] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA

[2] Osaka Univ, Inst Laser Engn, Suita, Osaka 5650871, Japan

来源：

PHYSICS OF PLASMAS | 2014年 / 21卷 / 02期

关键词：

SILICA AEROGELS; PLASMA;

D O I：

10.1063/1.4864330

中图分类号：

O35 [流体力学]; O53 [等离子体物理学];

学科分类号：

070204 ; 080103 ; 080704 ;

摘要：

Low-density foams irradiated by a 20 kJ laser at the Omega laser facility (Laboratory for Laser Energetics, Rochester, NY, USA) are shown to convert more than 5% of the laser energy into 4.6 to 6.0 keV x rays. This record efficiency with foam targets is due to novel fabrication techniques based on atomic-layer-deposition of Ti atoms on an aerogel scaffold. A Ti concentration of 33 at.% was obtained in a foam with a total density of 5mg/cm(3). The dynamics of the ionization front through these foams were investigated at the 1 kJ laser of the Gekko XII facility (Institute for Laser Engineering, Osaka, Japan). Hydrodynamic simulations can reproduce the average electron temperature but fail to predict accurately the heat front velocity in the foam. This discrepancy is shown to be unrelated to the possible water adsorbed in the foam but could be attributed to effects of the foam micro-structure. (C) 2014 AIP Publishing LLC.

引用

页数：8

共 38 条

[1] Atomic layer deposition of titanium dioxide from TiCl4 and H2O:: investigation of growth mechanism [J].

Aarik, J ;

Aidla, A ;

Mändar, H ;

Uustare, T .

APPLIED SURFACE SCIENCE, 2001, 172 (1-2) :148-158

[2] Efficient multi-keV X-ray sources from laser-exploded metallic thin foils [J].

Babonneau, D. ;

Primout, M. ;

Girard, F. ;

Jadaud, J. -P. ;

Naudy, M. ;

Villette, B. ;

Depierreux, S. ;

Blancard, C. ;

Faussurier, G. ;

Fournier, K. B. ;

Suter, L. ;

Kauffman, R. ;

Glenzer, S. ;

Miller, M. C. ;

Grun, J. ;

Davis, J. .

PHYSICS OF PLASMAS, 2008, 15 (09)

[3] Multi-keV x-ray conversion efficiency in laser-produced plasmas [J].

Back, CA ;

Davis, J ;

Grun, J ;

Suter, LJ ;

Landen, OL ;

Hsing, WW ;

Miller, MC .

PHYSICS OF PLASMAS, 2003, 10 (05) :2047-2055

[4] Efficient multi-keV underdense laser-produced plasma radiators [J].

Back, CA ;

Grun, J ;

Decker, C ;

Suter, LJ ;

Davis, J ;

Landen, OL ;

Wallace, R ;

Hsing, WW ;

Laming, JM ;

Feldman, U ;

Miller, MC ;

Wuest, C .

PHYSICAL REVIEW LETTERS, 2001, 87 (27) :275003-1

[5] ABSOLUTE CROSS-SECTION FOR HYDROGEN FORWARD SCATTERING [J].

BAGLIN, JEE ;

KELLOCK, AJ ;

CROCKETT, MA ;

SHIH, AH .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS, 1992, 64 (1-4) :469-474

[6] ALD Functionalized Nanoporous Gold: Thermal Stability, Mechanical Properties, and Catalytic Activity [J].

Biener, Monika M. ;

Biener, Juergen ;

Wichmann, Andre ;

Wittstock, Arne ;

Baumann, Theodore F. ;

Baeumer, Marcus ;

Hamza, Alex V. .

NANO LETTERS, 2011, 11 (08) :3085-3090

[7] Initial performance results of the OMEGA laser system [J].

Boehly, TR ;

Brown, DL ;

Craxton, RS ;

Keck, RL ;

Knauer, JP ;

Kelly, JH ;

Kessler, TJ ;

Kumpan, SA ;

Loucks, SJ ;

Letzring, SA ;

Marshall, FJ ;

McCrory, RL ;

Morse, SFB ;

Seka, W ;

Soures, JM ;

Verdon, CP .

OPTICS COMMUNICATIONS, 1997, 133 (1-6) :495-506

[8] Very-high-growth-factor planar ablative Rayleigh-Taylor experiments [J].

Bradley, D. K. ;

Braun, D. G. ;

Glendinning, S. G. ;

Edwards, M. J. ;

Milovich, J. L. ;

Sorce, C. M. ;

Collins, G. W. ;

Haan, S. W. ;

Page, R. H. ;

Wallace, R. J. ;

Kaae, J. L. .

PHYSICS OF PLASMAS, 2007, 14 (05)

[9] HIGH-SPEED GATED X-RAY-IMAGING FOR ICF TARGET EXPERIMENTS (INVITED) [J].

BRADLEY, DK ;

BELL, PM ;

KILKENNY, JD ;

HANKS, R ;

LANDEN, O ;

JAANIMAGI, PA ;

MCKENTY, PW ;

VERDON, CP .

REVIEW OF SCIENTIFIC INSTRUMENTS, 1992, 63 (10) :4813-4817

[10] Supersonic propagation of ionization waves in an underdense, laser-produced plasma [J].

Constantin, C ;

Back, CA ;

Fournier, KB ;

Gregori, G ;

Landen, OL ;

Glenzer, SH ;

Dewald, EL ;

Miller, MC .

PHYSICS OF PLASMAS, 2005, 12 (06) :1-8

← 1 2 3 4 →