Injector for a laser linear collider

To the quantum limitations in beam physics

“…Ultrarelativistic electron gas becomes more ideal in a Lab frame with increasing its energy due to cancellation of forces between the particles as ≈1 2 /γ . In principle, some amount of particles with opposite charge can be added to the beam moving along a straight line in a focusing channel [7]. Now let us estimate the minimal emittance from the compact packing approach.…”

Damping ring for generation of positroniums and investigation of Fermi degeneration in moving beams

“…Usage of helical quadrupole and dipole is preferable due to simplified technology. Even in absence of artificial coupling there is a coupling by IBS like , [4]. That is why full coupling allowed here.…”

“…With such amount of particles all collective phenomena vanished. We also mentioned in [4] that the lowered emittance with reduced number of particles can be obtained by scrapping all extra particles obtained from usual beam injectors. Phase density will remain the same however.…”

“…This type of cooler was introduced in [3] and described in [4]. Here we will give more details on its hardware.…”

“…Extreme among coolers was so called Kayak-paddle cooler first described in [3] and accommodated for laser driven linac business in [4]. It was found, that, formally, minimal phase volume occupied by single particle is limited by opening angle of radiation only and might be very close to the D .…”