Zobrazeno 1 - 10
of 964
pro vyhledávání: '"Miller, R H"'
Publikováno v:
Conf.Proc.C030512:2763,2003
The shape of an RF pulse is distorted upon propagating through an X-band accelerator structure due to dispersive effects. This distortion together with beam loading introduce energy spread between 192 bunches. In order to minimize this energy spread
Externí odkaz:
http://arxiv.org/abs/physics/0307034
Publikováno v:
Conf.Proc.C0106181:1345-1347,2001
We present a non-invasive, resonant cavity based approach to beam emittance measurement of a shot-to-shot non-circular beam pulse of multi-bunches. In a resonant cavity, desired field components can be enhanced up to Q_L_lambda/pi, where Q_L_lambda i
Externí odkaz:
http://arxiv.org/abs/physics/0209068
The progress of a multiple bunches of electrons through several thousand accelerator structures results in a wakefield which if left unchecked will kick successive bunches off the axis of the accelerator and can at the very least dilute the final lum
Externí odkaz:
http://arxiv.org/abs/physics/0208066
In order to mitigate the effects of electrical breakdown (which have been found to occur in SLAC X-band traveling wave structures) standing wave structures are being considered for the NLC linac. At SLAC, structures consisting of 15 cells operating i
Externí odkaz:
http://arxiv.org/abs/physics/0206091
Autor:
Jones, R. M., Li, Z., Miller, R. H., Raubenheimer, T. O., Ruth, R. D., Stupakov, G. V., Wang, J. W., Kroll, N. M.
Earlier RDDS (Rounded Damped Detuned Structures) [1,2], designed, fabricated and tested at SLAC, in collaboration with KEK, have been shown to damp wakefields successfully. However, electrical breakdown has been found to occur in these structures and
Externí odkaz:
http://arxiv.org/abs/physics/0206090
Autor:
Miller, R. H., Jones, R. M., Adolphsen, C., Bowden, G., Dolgashev, V., Li, N. Kroll Z., Loewen, R., Ng, C., Pearson, C., Ruth, T. Raubenheimer R., Tantawi, S., Wang, J. W.
Publikováno v:
Conf.Proc.C0106181:3819-3821,2001
Early tests of short low group velocity and standing wave structures indicated the viability of operating X-band linacs with accelerating gradients in excess of 100 MeV/m. Conventional scaling of traveling wave traveling wave linacs with frequency sc
Externí odkaz:
http://arxiv.org/abs/physics/0108063
Autor:
Jones, R. M., Kroll, N. M., Higo, T., Li, Z., Miller, R. H., Raubenheimer, T. O., Wang, J. W.
Publikováno v:
Conf.Proc.C0106181:3810-3812,2001
Recent experiments at SLAC [1,2] and CERN [3] have revealed evidence of significant deformation in the form of "pitting" of the cells of the 1.8m series of structures DDS/RDDS (Damped Detuned Structure/Rounded Damped Detuned Structure). This pitting
Externí odkaz:
http://arxiv.org/abs/physics/0107049
Publikováno v:
Conf.Proc.C0106181:936-938,2001
Operating the SLAC/KEK DDS (Damped Detuned Structure) X-band linacs at high gradients (in excess of 70MV/m) has recently been found to be limited by the accelerator structures breaking down and as a consequence severe damage occurs to the cells which
Externí odkaz:
http://arxiv.org/abs/physics/0107048