| Issue |
Eur. Phys. J. AP
Volume 21, Number 1, January 2003
|
|
|---|---|---|
| Page(s) | 53 - 57 | |
| Section | Imaging, Microscopy and Spectroscopy | |
| DOI | https://doi.org/10.1051/epjap:2002100 | |
| Published online | 19 November 2002 | |
https://doi.org/10.1051/epjap:2002100
Perturbation of the energy loss spectra for an accelerated electron beam due to the photo injector exit
Physics Department, The Hashemite University, PO Box 330116, Zarqa 13133, Jordan
Corresponding author: wael_salahh@Hotmail.com
Received:
6
November
2001
Revised:
31
May
2002
Accepted:
23
August
2002
Published online:
19
November
2002
The influence of the photoinjector exit hall on the energy loss for an accelerated electron beam is investigated, by calculating the total energy transferred from the electrons to the wakefields, which are driven by the beam. The obtained energy loss is compared to those previously obtained for a ‘pill-box’ cavity [9]. This comparison shows that the influence of this hall, in terms of energy loss, varies over the beam length. It is strongest in the middle of the beam and decreases towards both ends. In consequence of this perturbation, the center of the beam is displaced from its initial position during the first phase (t < 200 ps) where the exit aperture has no effect to a new equilibrium position which takes place at 200 < t < 250 ps.
PACS: 41.75.-i – Charged-particle beams / 41.75.Lx – Other advanced accelerator concepts / 41.60.-m – Radiation by moving charges
© EDP Sciences, 2003
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