TY - JOUR
T1 - Interpretation of wave-profile modification measurements in high-gain raman free-electron-laser experiments
AU - Jerby, E.
AU - Gover, A.
N1 - Funding Information:
The authors acknowledge communications with G. Beke£i and J. Wurtele. This work was supported in part by the US ONR under contract no. N00014-87-C0362.
PY - 1989/12/10
Y1 - 1989/12/10
N2 - This paper presents a theoretical analysis of wave-profile modification measurements in FELs, using data that was reported recently [Phys. Rev. Lett. 59 (1987) 1177]. The results are related to a high-gain Raman free-electron laser, operating at long wavelengths (∼ 3 cm). Two possible mechanisms for wave-profile modification were examined. One is the known e-beam optical guiding effect. The other is that of the transverse electrostatic fields (TEF), excited by the bunched electron beam. The numerical results suggest that in the above-mentioned reference the measured wave-profile modification was predominantly a consequence of the TEF components. An experimental setup for verification of this analysis is proposed.
AB - This paper presents a theoretical analysis of wave-profile modification measurements in FELs, using data that was reported recently [Phys. Rev. Lett. 59 (1987) 1177]. The results are related to a high-gain Raman free-electron laser, operating at long wavelengths (∼ 3 cm). Two possible mechanisms for wave-profile modification were examined. One is the known e-beam optical guiding effect. The other is that of the transverse electrostatic fields (TEF), excited by the bunched electron beam. The numerical results suggest that in the above-mentioned reference the measured wave-profile modification was predominantly a consequence of the TEF components. An experimental setup for verification of this analysis is proposed.
UR - http://www.scopus.com/inward/record.url?scp=0024941385&partnerID=8YFLogxK
U2 - 10.1016/0168-9002(89)90438-5
DO - 10.1016/0168-9002(89)90438-5
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AN - SCOPUS:0024941385
SN - 0168-9002
VL - 285
SP - 128
EP - 131
JO - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
JF - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
IS - 1-2
ER -