TY - GEN
T1 - Versatile e-beam prebuncher for FEMs and other high power beam devices
AU - Eichenbaum, A. L.
AU - Kleinman, H.
AU - Arbel, M.
AU - Gover, A.
N1 - Publisher Copyright:
© 1998 Beam Organizing Committee.
PY - 1998
Y1 - 1998
N2 - Beam bunching is employed in microwave tubes, FEMs and in other devices. We shall characterize and point out the advantages of using a traveling wave type prebuncher in a table-top compact FEM, which operates successfully at Tel-Aviv University in C-band and for FEMs operating anywhere in the microwave or mm wave range. Our prebuncher utilizes the e-gun and the first 2 "amplifier" sections of a 3-section Traveling Wave Tube (TWT). The 3rd "output" section was severed; an adopting flange was added to permit mounting and alignment of the prebuncher with the FEM resonator. We shall characterize the density modulation of the e-beam exiting from the prebuncher as a function of the RF power input to the prebuncher and as a function of operating frequency. This characterization is made possible by scaling from data of small signal gain, saturation gain, power output vs. power input which was measured on the 3 section TWT for a large frequency range. From this measured data, from the knowledge of the prebuncher operating parameters and from existing information regarding the behavior of TWT bunched beams in the saturation region a good estimate of density modulation vs. Input power and frequency is obtained for our prebuncher.
AB - Beam bunching is employed in microwave tubes, FEMs and in other devices. We shall characterize and point out the advantages of using a traveling wave type prebuncher in a table-top compact FEM, which operates successfully at Tel-Aviv University in C-band and for FEMs operating anywhere in the microwave or mm wave range. Our prebuncher utilizes the e-gun and the first 2 "amplifier" sections of a 3-section Traveling Wave Tube (TWT). The 3rd "output" section was severed; an adopting flange was added to permit mounting and alignment of the prebuncher with the FEM resonator. We shall characterize the density modulation of the e-beam exiting from the prebuncher as a function of the RF power input to the prebuncher and as a function of operating frequency. This characterization is made possible by scaling from data of small signal gain, saturation gain, power output vs. power input which was measured on the 3 section TWT for a large frequency range. From this measured data, from the knowledge of the prebuncher operating parameters and from existing information regarding the behavior of TWT bunched beams in the saturation region a good estimate of density modulation vs. Input power and frequency is obtained for our prebuncher.
UR - http://www.scopus.com/inward/record.url?scp=85051164679&partnerID=8YFLogxK
U2 - 10.1109/BEAMS.1998.816956
DO - 10.1109/BEAMS.1998.816956
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AN - SCOPUS:85051164679
T3 - BEAMS 1998 - Proceedings of the 12th International Conference on High-Power Particle Beams
SP - 728
EP - 731
BT - BEAMS 1998 - Proceedings of the 12th International Conference on High-Power Particle Beams
A2 - Shiloh, Joseph
A2 - Markovitis, Meir
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 12th International Conference on High-Power Particle Beams, BEAMS 1998
Y2 - 12 June 1998
ER -