A novel 45-channel electron spectrometer for high intensity laser-plasma interaction studies

被引:24
作者
Gahn, C [1 ]
Tsakiris, GD
Witte, KJ
Thirolf, P
Habs, D
机构
[1] Max Planck Inst Quantenopt, D-85748 Garching, Germany
[2] LMU Munchen, Sekt Phys, D-85748 Garching, Germany
关键词
D O I
10.1063/1.1150511
中图分类号
TH7 [仪器、仪表];
学科分类号
0804 ; 080401 ; 081102 ;
摘要
We have developed a magnetic spectrometer to characterize the hot electrons generated in high-intensity (> 10(18) W/cm(2)) laser-plasma interaction experiments. It comprises a dispersive element consisting of a permanent dipole magnet and an electron detector incorporating 45 scintillating/light-guiding plastic fibers connected to a cooled charged-coupled device camera. The main features of this instrument are high spectral resolution, low sensitivity to x and gamma rays, and versatility due to its compact design. Performance and operational capabilities are illustrated based on experimental results in which electron energy-spectra in the range of 520 keV to 12.6 MeV were obtained with an energy resolution of 10% and a detection threshold of 10(6) electrons per MeV. (C) 2000 American Institute of Physics. [S0034-6748(00)04804-8].
引用
收藏
页码:1642 / 1645
页数:4
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