Explosions of Xenon Clusters in Ultraintense Femtosecond X-Ray Pulses from the LCLS Free Electron Laser

被引：68

作者：

Thomas, H. ^{[1
]}

Helal, A. ^{[1
]}

Hoffmann, K. ^{[1
]}

Kandadai, N. ^{[1
]}

Keto, J. ^{[1
]}

Andreasson, J. ^{[2
,3
]}

Iwan, B. ^{[2
,3
]}

Seibert, M. ^{[2
,3
]}

Timneanu, N. ^{[2
,3
]}

Hajdu, J. ^{[2
,3
]}

Adolph, M. ^{[4
]}

Gorkhover, T. ^{[4
]}

Rupp, D. ^{[4
]}

Schorb, S. ^{[4
]}

Moeller, T. ^{[4
]}

Doumy, G. ^{[5
]}

DiMauro, L. F. ^{[5
]}

Hoener, M. ^{[7
]}

Murphy, B. ^{[7
]}

Berrah, N. ^{[7
]}

Messerschmidt, M. ^{[6
]}

Bozek, J. ^{[6
]}

Bostedt, C. ^{[6
]}

Ditmire, T. ^{[1
]}

机构：

[1] Univ Texas Austin, Texas Ctr High Intens Laser Sci, Austin, TX 78712 USA

[2] Uppsala Univ, Uppsala, Sweden

[3] Stanford Univ, Menlo Pk, CA 94025 USA

[4] Tech Univ Berlin, Inst Opt & Atomare Phys, D-10623 Berlin, Germany

[5] Ohio State Univ, Dept Phys, Columbus, OH 43210 USA

[6] Stanford Linear Accelerator Ctr, LCLS, Menlo Pk, CA 94025 USA

[7] Western Michigan Univ, Dept Phys, Kalamazoo, MI 49008 USA

来源：

PHYSICAL REVIEW LETTERS | 2012年 / 108卷 / 13期

关键词：

ATOMIC CLUSTERS; IONIZATION;

D O I：

10.1103/PhysRevLett.108.133401

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Explosions of large Xe clusters (< Ni > similar to 11 000) irradiated by femtosecond pulses of 850 eV x-ray photons focused to an intensity of up to 1017 W/cm(2) from the Linac Coherent Light Source were investigated experimentally. Measurements of ion charge-state distributions and energy spectra exhibit strong evidence for the formation of a Xe nanoplasma in the intense x-ray pulse. This x-ray produced Xe nanoplasma is accompanied by a three-body recombination and hydrodynamic expansion. These experimental results appear to be consistent with a model in which a spherically exploding nanoplasma is formed inside the Xe cluster and where the plasma temperature is determined by photoionization heating.

引用

页数：5

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