&lt;title&gt;Recent progress in the hard-tube MILO experiment&lt;/title&gt;

Haworth, M.D.; Allen, K.; Baca, G.; Benford, James; Englert, T.J.; Hackett, K. E.; Hendricks, K.J.; Henley, D.; Lemke, R.W.; Price, David L.; Ralph, D.; Sena, M.; Shiffler, D.; Spencer, Thomas A.

doi:10.1117/12.279433

Cited by 35 publications

(9 citation statements)

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“…Beam Interception: Collisions between electron beams and surfaces, (for example, on slow wave structures, choke structures, or elsewhere in the tube) generate a moving plasma, which can disrupt the coupling between the beam and microwave generating structures [7], [11]. It can also prevent establishing magnetic self-insulation in the MILO [12], [13].…”

Section: Plasma Generationmentioning

confidence: 99%

Evolution of pulse shortening research in narrow band, high power microwave sources

Agee

1998

IEEE Trans. Plasma Sci.

110

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The achievements resulting from the application of advanced pulsed power to the generation of high power microwaves (HPM) have included the generation of multi-gigawatt pulses of RF energy. The power achievable is orders of magnitude greater than conventional microwave sources can generate. However, the introduction of the HPM technology into logical applications has been limited to date due to the phenomenon of pulse shortening in which the RF pulse terminates before the pulse power source used to produce it. Conventional microwave tubes can generate a few to 10 MW of power with pulsewidths of many microseconds when required. High power microwave sources can produce gigawatts of power, but only for relatively short pulsewidths, typically tens to hundreds of nanoseconds. An international effort during the past few years has generated important new discoveries toward the elimination of pulse shortening. Some of the new techniques have the potential for helping the conventional tube industry as well as being practical for high power microwave sources. This paper reviews the pulse shortening problem, its causes, and the worldwide scope and direction of research conducted to date to resolve it. The paper also discusses the potential remedies for the problem and recommends a course of research to further progress on the issue.

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Section: Plasma Generationmentioning

confidence: 99%

Evolution of pulse shortening research in narrow band, high power microwave sources

Agee

1998

IEEE Trans. Plasma Sci.

110

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“…We carry out the numerical simulation of the modulation of the space charge in the MILO for parameters given in the reference [1], and obtain the relation of the modulated coefficient of the first order M1 and the voltage Vo on the diode (see Fig.2). …”

Section: The Numerical Simulation Of the Modulation Of The Space Charmentioning

confidence: 99%

“…The harmonic component of the modulated current is I = J 2irrdr?-j e'jz(r, seen from the expression (37a) and (37b) that the structural and operating parameters of the system are contamed in the arguments A and A of the Bessel function. Since the numerical values of the argument AS(AC) is estimated to be about unity for parameters in the reference[1] and the Bessel functions Jo and J1 have their own periodicity, to set up a simple and clear scaling relation of the modulated coefficient of the first order is then rather difficult. However, because J0(A,) is positive and J1(A) is negative at the range 2.5 < A8(A) < 3.7, therefore, it is asserted that the numerical value of A8 (Ar) i5 111 the range [0,2.5].…”

mentioning

confidence: 99%

<title>Modulation of the space charge in MILO</title>

Ding

2000

SPIE Proceedings

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“…It differs from a magnetron oscillator primarily in that its insulating magnetic field is generated by current flow through the device itself rather than by an external magnetic field. Both plane and cylindrical MILO variants have been studied, but most work has been with cylindrical devices [1][2][3][4][5][6][7][8][9][10][11][12] . According as the different microwave extracting fashions, the MILOs have two basic structures: Hard MILO and Tapered MILO.…”

Section: Introductionmentioning

confidence: 99%

An improved tapered MILO

Zhong

Yang

et al. 2013

2013 19th IEEE Pulsed Power Conference (PPC)

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An improved magnetically insulated line oscillator with several slow wave cavities and double-cavity extraction structure is presented and analyzed. By computing the dispersion curve of the SWS, and using the PIC code, optimized structures with the beam-wave conversion efficiency of 15% in S band and in L band have been designed. In the following experiments, microwave with an averaged power of 3GW at 2.61GHz and an averaged power of 3GW at 1.56GHz is generated separately by using these structures which are fed by the water-filled Blumlein pulse forming line accelerator named Spark01. The measured efficiency is about 12%. Otherwise, a Kuband tapered MILO which has been designed based on the same principle is also presented.

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<title>Recent progress in the hard-tube MILO experiment</title>

Cited by 35 publications

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Evolution of pulse shortening research in narrow band, high power microwave sources

Evolution of pulse shortening research in narrow band, high power microwave sources

<title>Modulation of the space charge in MILO</title>

An improved tapered MILO

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