Advanced diagnostics applied to a laser-driven electron-acceleration experiment

Year: 2008

Authors: Gamucci A., Bourgeois N., Ceccotti T., Dobosz S., D’Oliveira P., Galimberti M., Galy J., Giulietti A., Giulietti D., Gizzi LA., Hamilton D.J., Labate L., Marques J.R., Monot P., Popescu H., Reau F., Sarri G., Tomassini P., Martin P.

Autors Affiliation: CNR, IPCF, Intense Laser Irradiat Lab, I-56124 Pisa, Italy
Ist Nazl Fis Nucl, Sez Pisa, I-56100 Pisa, Italy;
Ecole Polytech, CNRS, UMR 7605, Lab Utilisat Lasers Intenses, F-91128 Palaiseau, France
CEA, DSM, DRECAM, SPAM, F-91191 Gif Sur Yvette, France;
Rutherford Appleton Lab, Cent Laser Facil, Didcot OX11 0QX, Oxon England;
Inst Transuranium Elements, D-76125 Karlsruhe, Germany ;
Univ Pisa, Dipartimento Fis, I-56100 Pisa, Italy:
Ist Nazl Fis Nucl MI, I-20133 Milan, Italy

Abstract: In this paper, the interaction of 10-TW laser pulses, focused at moderately relativistic intensity, with a supersonic helium gas-jet has been investigated by varying gas density and jet nozzle. We have successfully tested several advanced diagnostic devices to characterize the plasma and the accelerated electron bunches. Plasma densities have been measured by means of a femtosecond high-resolution interferometer, while the electron beams were analyzed with a stack of radiochromic films, a beam-profile monitor, a magnetic spectrometer, and a nuclear activation setup based on gamma-ray generation via electron bremsstrahlung. We present the results as well as the basic features and relevant details of such diagnostics whose performances can fit a large class of experiments.


Volume: 36 (4.4)      Pages from: 1699  to: 1706

KeyWords: advanced diagnostics; laser-plasma acceleration; plasma measurements
DOI: 10.1109/TPS.2008.2000898

Citations: 2
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