| Paper |
Title |
Page |
| MOPPH014 |
Optimization of Parameters of Smith-Purcell BWO
|
67 |
| |
- V. Kumar
RRCAT, Indore (M. P.)
- K.-J. Kim
ANL, Argonne, Illinois
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| |
We perform a detailed study of the dependence of start current in Smith-Purcell Backward Wave Oscillators (SP-BWO) on grating parameters and electron beam parameters. In our analysis, we include the attenuation due to finite conductivity of the grating material into account and also include three-dimensional effects approximately. We perform numerical simulation to optimize the parameters of an SP-BWO in order to generate intense THz-radiation.
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| MOPPH015 |
Analysis of Smith-Purcell BWO with End Reflections
|
71 |
| |
- V. Kumar
RRCAT, Indore (M. P.)
- K.-J. Kim
ANL, Argonne, Illinois
|
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| |
All the previous analyses of Smith-Purcell Backward Wave Oscillator (SP-BWO) have assumed that there is no reflection at the end of the grating. We present an analysis of SP-BWO taking the reflection at the end of the grating into account. We study the dependence of start current on end reflection, taking the attenuation due to finite conductivity into account.
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| THPPH058 |
Beam Spreading and Emittance Oscillation of an Intense Magnetized Beam in Free Space
|
721 |
| |
- C.-X. Wang, K.-J. Kim
ANL, Argonne, Illinois
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| |
Intense beams with large angular momentum have important applications in electron cooling and in producing flat beams suitable for ultrafast x-ray generation, Smith-Purcell radiators, and possibly for a future linear collider. To gain basic understanding of the influence of beam angular momentum in an otherwise space-charge-dominated beam, the behavior of such a beam in free space will be examined here, in particular, beam spreading due to space-charge force, as well as emittance oscillation. Drift space is an important part of a split photoinjector and plays a significant role in emitance compensation of a high-brightness photoinjector.
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