Experimental results of a high gain microwave FEL operating at 140 GHz

Throop, A.L.; Fawley, W.M.; Jong, R.A.; Orzechowski, T. J.; Prosnitz, D.; Scharlemann, E.T.; Stever, R.; Westenskow, G.; Hopkins, D.B.; Sessler, Andrew M.; Evangelides, S.G.; Kreischer, K.E.

doi:10.1016/0168-9002(88)90187-8

Cited by 17 publications

(3 citation statements)

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“…If the undulator is long enough and if the beam intensity is high enough, the spontaneous emission will be amplified by the beam itself, and the output radiation will grow exponentially until the FEL amplifier saturates. This process has been demonstrated in a quasi-optical experiment with 2 mm radiation in the ELF experiment at LLNL 3 .…”

Section: Scaling Basis For the X -Ray Fel Designmentioning

confidence: 83%

“…The BNL gun, illustrated in Figure 7, is expected to produce a beam of 200 A in 3 ps with a normalised rms emittance of m 3 x 10"* mrad with a pulse length of < 5 ps. In the BNL gun a mode locked, frequency doubled Nd:YAG laser is used to drive a metallic photocathode in a 2.87 GHs cavity (l£ cells) to emit a beam with a current density < 600 A/cm 3 The physical phenomenon which forms the basis for scaling the gradient in rf-linacs from the 17 MeV/m of the Stanford Linear Colider to the desired ss 200 MeV/fai for compact linear light sources, is the increase in peak electric field that can be sustained without breakdown 9 with increasing rffrequency and with shortening duration of the rfpower. For disk-loaded waveguide structures the peak field that can be maintained is…”

Section: Description Of Accelerator Componentsmentioning

confidence: 99%

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Compact X-Ray Free-Electron Laser

Barletta

Attac

Cline

et al. 1988

Short Wavelength Coherent Radiation: Generation and Applications

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We present a design concept and simulation of the performance of a compact x-ray, free electron laser driven by ultra-high gradient rf-linacs. The accelerator design is based on recent advances in high gradient technology by a LLNL/SLAC/LBL collaboration† and on the development of bright, high current electron sources by BNL and LANL. The GeV electron beams generated with such accelerators can be converted to soft x-rays in the range from 2-10 nm by passage through short period, high field strength wigglers as are being designed at Rocketdyne. Linear light sources of this type can produce trains of picosecond (or shorter) pulses of extremely high spectral brilliance suitable for flash holography of biological specimens in vivo and for studies of fast chemical reactions.

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Section: Scaling Basis For the X -Ray Fel Designmentioning

confidence: 83%

Section: Description Of Accelerator Componentsmentioning

confidence: 99%

Compact X-Ray Free-Electron Laser

Barletta

Attac

Cline

et al. 1988

Short Wavelength Coherent Radiation: Generation and Applications

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show abstract

“…ELF was also operated as a 138 GHz FEL using an Extended Interaction Oscillator (EIO) as a driver. 8 Highlights of its performance are shown in Table 2 and Figure 3. Although its operating frequency is higher than that required for presently-envisioned accelerator applications (but of great interest for ECRH plasma heating), this work is mentioned here as an example of recent FEL developmental progress.…”

mentioning

confidence: 99%