8 citations · 20 across the 7 of their papers we have counts for
8 papers
Characteristic transition of the dominant power loss from diffractive to ohmic in overmoded and periodically loaded waveguides at high frequency
Adham Naji, Pawan Kumar Gupta, Gennady Stupakov
The analysis of electromagnetic fields in cylindrical waveguiding structures that contain periodic ring loading, whether for applications in charged-particle accelerators or radiat…
Full-scatter vector field analysis of an overmoded and periodically-loaded cylindrical structure for the transportation of THz radiation
Adham Naji, Pawan Kumar Gupta, Gennady Stupakov
Highly overmoded and periodically loaded structures, such as the iris-line waveguide, offer an attractive solution for the efficient transportation of diffraction-prone THz pulses…
Chisel-edged screens to reduce loss in highly overmoded THz iris lines with finite screen thickness
Adham Naji, Karl Bane, Andrei Trebushinin +1
In this note we report observations on the growth trends of diffraction power loss and ohmic power loss, as functions of screen thickness, in highly overmoded THz iris-line wavegui…
XCC: An X-ray FEL-based Compton Collider Higgs Factory
T. Barklow, C. Emma, Z. Huang +5
This report describes the conceptual design of a Higgs factory in which 62.8 GeV electron beams collide with 1 keV X-ray free electron laser (XFEL) beams to produce colliding…
Paraxial forward-scatter field analysis for a THz pulse traveling down a highly overmoded iris-line waveguide
Adham Naji, Gennady Stupakov
Highly overmoded iris-line structures carry desirable features for the efficient transportation of THz radiation over long distances. Previous studies have analyzed the iris line,…
XCC: An X-ray FEL-based Collider Higgs Factory
Tim Barklow, Su Dong, Claudio Emma +8
This report describes the design of a Higgs factory in which 62.8 GeV electron beams collide with 1 keV X-ray free electron laser (XFEL) beams to produce colliding beams of 62…
Field Analysis for a Highly-Overmoded Iris Line, with Application to THz Radiation Transport at LCLS
Adham Naji, Gennady Stupakov, Zhirong Huang +1
Vector field analysis is presented for a highly overmoded iris-line structure that can act as a medium of transportation for THz radiation. The axisymmetric structure is capable of…
Variational Self-Consistent Theory for Beam-Loaded Cavities
Adham Naji, Sami Tantawi
A new variational theory is presented for beam loading in microwave cavities. The beam--field interaction is formulated as a dynamical interaction whose stationarity according to H…