نتایج جستجو برای: electron waveguide
تعداد نتایج: 324763 فیلتر نتایج به سال:
We report the observation of de-chirping of a linearly chirped (in energy) electron bunch by its passage through a 5 cm long dielectric loaded waveguide structure. The experiment was conducted at the ATF facility at BNL according to a concept dubbed the "wakefield silencer" originally developed at the ANL AATF [1] which involves defining the electron bunch peak current distribution and selectin...
چکیده ندارد.
The corona effect in space radio frequency (RF) hardware is an electric breakdown process at low neutral gas pressures originated by the progressive outgassing of the entire RF system. A small number of seeding electrons are accelerated by the RF electric field and their subsequent inelastic collisions with neutral atoms and ionizations produce the multiplication of charges in the gap between t...
We describe a fast quantum computer based on optically controlled electron spins in charged quantum dots that are coupled to microcavities. This scheme uses broadband optical pulses to rotate electron spins and provide the clock signal to the system. Nonlocal two-qubit gates are performed by phase shifts induced by electron spins on laser pulses propagating along a shared waveguide. Numerical s...
Beam-based alignment is essential for the operation of the SASE-FEL at the TESLA Test Facility Linac. In order to ensure the overlap of the photon beam and the electron beam, the position of the electron beam has to be measured along the undulator beamline with a high resolution. Due to the severe space limitations, a new microwave concept is being considered. It is based on special ridged wave...
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The Cerenkov free electron laser (CFEL) model under consideration consists of a pre-bunched relativistic electron beam and a dielectric loaded waveguide. The increase in the growth rate and gain with the change in phase by using a pre-bunched electron beam in a Cerenkov free electron laser (CFEL) has been studied. The growth rate and gain is calculated at experimentally known CFEL and FEL param...
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