Electron beam characteristics of a laser-driven plasma wake"eld accelerator
نویسندگان
چکیده
The properties of an electron beam trapped and accelerated in a laser wake"eld have been investigated. Plastic scintillating "bers were employed together with position sensitive photomultiplier tubes (PMT) and a series of dipole electro-magnets to study the beam. The measured momentum spectrum peaks around 7 MeV/c with an exponential fall-o! at high momenta up to (70.3$ 19.9) MeV/c. The number of electrons detected per bunch is determined to be (2.6$0.3)]1011. ( 1999 Elsevier Science B.V. All rights reserved. PACS: 29.27.Fh; 29.40.Mc; 52.75.Di
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