Energetic heavy-ion and proton generation from ultraintense laser-plasma interactions with solids

被引：531

作者：

Clark, EL ^{[1
]}

Krushelnick, K

Zepf, M

Beg, FN

Tatarakis, M

Machacek, A

Santala, MIK

Watts, I

Norreys, PA

Dangor, AE

机构：

[1] Univ London Imperial Coll Sci Technol & Med, London SW7 2BZ, England

[2] AWE, Dept Radiat Phys, Reading RG7 4PR, Berks, England

[3] Univ Oxford, Dept Phys, Oxford OX1 3PU, England

[4] Rutherford Appleton Lab, Didcot OX11 0QX, Oxon, England

来源：

PHYSICAL REVIEW LETTERS | 2000年 / 85卷 / 08期

关键词：

D O I：

10.1103/PhysRevLett.85.1654

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Heavy ions with energies up to 430 +/- 40 MeV have been measured from laser-solid interactions at focused intensities of up to 5 X 10(19) W/cm(2). Observations of proton emission indicate significant structure in the energy spectrum as well as an angular emission profile which varies with energy. Two qualitatively different components of ion emission are observed: (i) a high-energy component which is likely generated by a combination of "Coulomb explosion" and acceleration by the space charge force from hot electrons which escape the plasma, and (ii) a lower-energy component which forms a ring likely created by magnetic fields in the ablated plasma.

引用

页码：1654 / 1657

页数：4

共 24 条

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