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Stimulated coherent spontaneous emission in an FEL with 'quiet' bunches
shot noise reduction controlled microbunching instability laser heater
2012/5/31
For a planar FEL configuration we study stimulated coherent spontaneous emission driven by a gradient of the bunch current in the presence of different levels of noise in bunches. To perform a vast am...
Chlorine-Free Bleaching of Kraft Pulp from Oil Palm Empty Fruit Bunches
EFB oxygen ozone brightness paper strengths
2009/9/10
Chlorine-free bleaching was carried out on kraft pulp from oil palm empty fruit bunches (EFB) with an oxygen (O2) - acid (H2SO4) - ozone (O3) - hydrogen peroxide (H2O2) bleaching sequence. The κ-numbe...
Collective effects for long bunches in dual harmonic RF systems
resistive impedance incoherent motion halo formation coherent dipole instability
2009/7/31
The storage of long bunches for large time intervals needs flattened stationary buckets with a large bucket height. Collective effects from the space charge and resistive impedance are studied by look...