A 2 TO 4NM HIGH-POWER FEL ON THE SLAC LINAC

Authors
PELLEGRINI C ROSENZWEIG J NUHN HD PIANETTA P TATCHYN R WINICK H BANE K MORTON P RAUBENHEIMER T SEEMAN J HALBACH K KIM KJ KIRZ J
Citation
C. Pellegrini et al., A 2 TO 4NM HIGH-POWER FEL ON THE SLAC LINAC, Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment, 331(1-3), 1993, pp. 223-227
Citations number
20
Categorie Soggetti
Nuclear Sciences & Tecnology","Physics, Particles & Fields","Instument & Instrumentation",Spectroscopy
Journal title
Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment → ACNP
ISSN journal
01689002
Volume
331
Issue
1-3
Year of publication
1993
Pages
223 - 227
Database
ISI
SICI code
0168-9002(1993)331:1-3<223:A2T4HF>2.0.ZU;2-O
Abstract
We report the results of preliminary studies of a 2 to 4 nm SASE FEL, using a photoinjector to produce the electron beam, and the SLAC linac to accelerate it to an energy up to 10 GeV. Longitudinal bunch compre ssion is used to increase ten fold the peak current to 2.5 kA, while r educing the bunch length to the subpicosecond range. The saturated out put power is in the multi-gigawatt range, producing about 10(14) coher ent photons within a bandwidth of about 0.2% rms, in a pulse of severa l millijoules. At 120 Hz repetition rate the average power is about 1 W. The system is optimized for X-ray microscopy in the water window ar ound 2 to 4 nm, and will permit imaging a biological sample in a singl e subpicosecond pulse.