Subharmonic Beam-Loading in Electron Linear Accelerators

Transient Beam Loading Compensation in Low-energy Pulsed Linear Electron Accelerators

In pulsed traveling-wave high-intensity electron linacs large beam energy spreads are caused by the transient beam loading phenomenon. This energy spread is not only critical in high-energy accelerators, as the next generation of linear colliders, but it causes also problems in modern low-energy high-intensity linacs. Different compensation schemes were proposed recently for SLED driven structu...

New Developments of Electron Beam Accelerators

New Applications for Linear Electron Accelerators*

Electron linacs in the 100 MeV to 25 GeV energy range have by now been in operation for periods ranging from one year to over 20 years. In 1951 the Mark III accelerator at Stanford became the first electron linac to exceed an energy of 100 MeV. Since then significant increases in maximum electron energy have been made by the h'Iark III (reaching an energy of 1 GeV in 1960) and SLAC (exceeding 2...

Medical Applications of Electron Linear Accelerators

The role of radiation therapy in cancer management is first defined: today among the cancer patients who are cured (≅ 45 %) about one half are cured by radiation therapy applied alone or in combination with surgery or chemotherapy. The experience accumulated in decades shows that, to be efficient, the radiation treatment must be delivered with a high physical selectivity. At present, electron l...

Beam-Induced Multipactoring and Electron-Cloud Effects in Particle Accelerators

High-energy particle accelerators produce intense charged particle beams, e.g. of electrons or protons, at multi-GeV or multi-TeV energies, either shooting a single such beam against a fixed target or colliding two beams, in order to produce new particles and to study the scattering events in the search for the fundamental laws of physics. In the beam pipe of these accelerators an “electron clo...