Localized longitudinal space-charge waves in a transport channel with a resistive wall are investigated experimentally. The space-charge waves with various pulse widths are generated in electron beams with energies of 3.0–8.5 keV and currents of 30–135 mA, and they are transported through a resistive channel with a resistance of 5–10 kΩ and a length of 1 m. The resistive channel, made of a glass tube with a resistive material coating, is surrounded by a long solenoid which provides the focusing for the beam. The localized space-charge waves are measured with current monitors and energy analyzers at the entrance and exit of the resistive channel, and the wave-amplitude growth and damping rates are determined. The measured results are compared with the theory in the long-wavelength range. For localized waves with short widths, where the long-wavelength approximation is not valid any more, dispersion and distributed capacitance effects on the growth/damping rates are discussed. In addition, preliminary results on the energy width measurements of space-charge waves are presented.

1.
R. D. Ruth et al., Proceedings of the IEEE 1997 Particle Accelerator Conference, Vancouver, BC, Canada, p. 439.
2.
R. Palmer, Proceedings of the IEEE 1997 Particle Accelerator Conference, Vancouver, BC, Canada, p. 286.
3.
R. O.
Bangerter
,
Fusion Eng. Des.
32-33
,
27
(
1996
).
4.
C.
Rubbia
,
Nuovo Cimento A
106
,
1429
(
1993
).
5.
B. R. Appleton, Proceedings of the IEEE 1997 Particle Accelerator Conference, Vancouver, BC, Canada, p. 20.
6.
C. R.
Prior
,
AIP Conf. Proc.
488
,
141
(
1998
).
7.
T. C. Marshall, Free Electron Lasers (Macmillan, New York, 1985).
8.
V. L.
Granatstein
,
Int. J. Electron.
57
,
787
(
1984
).
9.
W. C.
Hahn
,
Gen. Electr. Rev.
42
,
258
(
1939
).
10.
S.
Ramo
,
Phys. Rev.
56
,
276
(
1939
).
11.
C. K.
Birdsall
,
G. R.
Brewer
, and
A. V.
Haeff
,
Proc. IRE
41
,
865
(
1953
).
12.
V. K.
Neil
and
A. M.
Sessler
,
Rev. Sci. Instrum.
36
,
429
(
1965
).
13.
A. G. Ruggiero and V. G. Vaccaro, CERN Report ISR-TH/68-33 (1968).
14.
E. Keil and W. Schnell, CERN Report ISR-TH-RF/69-48 (1969).
15.
E. Lee, Proceedings of the 1981 Linear Accelerator Conference, Santa Fe, NM, October 19–23, 1981, p. 263.
16.
S.
Humphries
, Jr.
,
J. Appl. Phys.
51
,
2338
(
1980
).
17.
J.
Bisognano
,
I.
Haber
,
L.
Smith
, and
A.
Sternlieb
,
IEEE Trans. Nucl. Sci.
NS-28
,
2513
(
1981
).
18.
I.
Hofmann
,
Z. Naturforsch.
37
,
939
(
1982
).
19.
D. A. C. Miller, Ph.D. dissertation, University of California, Davis, 1994.
20.
M. Reiser, Theory and Design of Charged Particle Beams (Wiley, New York, 1994), Sec. 6.3.2.
21.
J. G.
Wang
and
M.
Reiser
,
Phys. Fluids B
5
,
2286
(
1993
).
22.
J. G.
Wang
,
H.
Suk
,
D. X.
Wang
, and
M.
Reiser
,
Phys. Rev. Lett.
72
,
2029
(
1994
).
23.
J.
Bisognano
,
AIP Conf. Proc.
253
,
42
(
1992
).
24.
H.
Suk
,
J. G.
Wang
, and
M.
Reiser
,
Phys. Plasmas
3
,
669
(
1996
).
This content is only available via PDF.
You do not currently have access to this content.