A high brightness electron beam with low energy spread is essential for a free electron laser intended to operate in the wavelength region beyond the UV. Several hundreds of amperes peak current, an emittance of several pi mm mrad or less and an energy spread of a few tenth of a percent are required. At present, photocathode linacs are the only devices that can produce such beams. The success of such a linac is strongly dependent on the possibility to develop a high-efficient, stable photocathode and a high-power, stable drive laser used to illuminate the cathodes. In this paper we present some result on our photocathode research as well as our drive laser developments. (C) 1998 Elsevier Science B.V.
Aspects of accelerator-based photoemission
BISERO, Diego;
1998
Abstract
A high brightness electron beam with low energy spread is essential for a free electron laser intended to operate in the wavelength region beyond the UV. Several hundreds of amperes peak current, an emittance of several pi mm mrad or less and an energy spread of a few tenth of a percent are required. At present, photocathode linacs are the only devices that can produce such beams. The success of such a linac is strongly dependent on the possibility to develop a high-efficient, stable photocathode and a high-power, stable drive laser used to illuminate the cathodes. In this paper we present some result on our photocathode research as well as our drive laser developments. (C) 1998 Elsevier Science B.V.I documenti in SFERA sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
