publication . Other literature type . Article . 1995

Emittance growth from merging arrays of round beamlets

O.A. Anderson;
Open Access English
  • Published: 31 Aug 1995
  • Country: United States
Abstract The cost of an induction linac for heavy ion fusion (HIF) may be reduced if the number of channels in the main accelerator is reduced. There have been proposals to do this by merging beamlets (perhaps in groups of four) after a suitable degree of preacceleration. This process, which results in r.m.s. emittance growth, occurs in two stages. The first stage occurs instantly when the beamlets, no longer separated by electrodes, enter the merging region. At this point one has a collection of beamlets whose centers are displaced from the central axis by distances δxi, δyi. The mean square emittance, now calculated for the whole collection, is ϵxi2 = ϵx12 + 〈...
arXiv: Physics::Accelerator Physics
free text keywords: Accelerators and Storage Rings, Mechanical Engineering, General Materials Science, Nuclear Energy and Engineering, Civil and Structural Engineering, Beam emittance, Thermal emittance, Scaling, Particle accelerator, law.invention, law, Optics, business.industry, business, Physics, Electric potential energy, Space charge, Thermal velocity, Linear particle accelerator
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