Sökning: "ultralow emittance"

Hittade 3 avhandlingar innehållade orden ultralow emittance.

1. 1. Emittance related topics for fourth generation storage ring light sources

   Författare :Jonas Breunlin; Lunds universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; ultralow emittance; Touschek lifetime; emittance tuning; Beam diagnostics; synchrotron radiation;

   Sammanfattning : In this thesis several aspects related to a new generation of storage ring light sources are discussed. Due to a reduction of electron beam emittance, fourth generation storage rings provide synchrotron radiation sources close to the diffraction limit at X-ray wavelengths. LÄS MER

3. 2. Timing Modes for the MAX IV Storage Rings

   Författare :Teresia Olsson; Lunds universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Synchrotron light storage rings; timing experiments; ultralow emittance; harmonic cavities; fill patterns; PPRE; PSB; Fysicumarkivet A:2018:Olsson;

   Sammanfattning : The MAX IV facility includes two storage rings, operated at 1.5 and 3 GeV energy, for the purpose of producing high-brilliance synchrotron radiation for users. The 1.5 GeV ring replaces the previous MAX II and MAX III storage rings as a source of UV and soft X-rays, whereas the 3 GeV ring is optimized for hard X-rays. LÄS MER

4. 3. Impedance and Instabilities in the MAX IV 3 GeV Ring

   Författare :Galina Skripka; Lunds universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Collective effects; geometric impedance; resistive wall impedance; wakefields; particle tracking; harmonic cavity;

   Sammanfattning : To ensure the beam with an ultralow emittance and high current the possible effects deteriorating the beam stability must be investigated. When ultrarelativistic particles travel in the vacuum chamber they induce electromagnetic fields which can act back on them and the following particles. LÄS MER