TITLE:
A Pulsed Electromagnet for Laser Wakefield Electron Acceleration Experiments
AUTHORS:
Septimiu Balascuta
KEYWORDS:
Electron Spectrometer, Electromagnet, Electron Beam, Magnetic Field, Pulsed Electric Current, DC Electric Current
JOURNAL NAME:
Journal of Electromagnetic Analysis and Applications,
Vol.8 No.3,
March
28,
2016
ABSTRACT: Laser Wakefield plasma acceleration of electrons to energies above 10 GeV, may be possible in the new high power Laser beam facilities. The design of an Electron Spectrometer with an electro-magnet with adjustable magnetic field is proposed for the characterization of electron energy spectrum with a precision better than 10% for the entire energy range from 0.5 GeV to 38 GeV. The expected precision in the measurement of the electron energy is calculated as a function of the magnetic field, of the electron energy and of the magnet length. To outline the advantages offered by a pulsed electromagnet with high magnetic fields, the mass and the electric power lost in the coils of a 4 m long electromagnet with continuous current and Iron yoke are calculated.