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Showing 1 to 7 of 7 for “"transverse emittance"”.
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High-brightness electron beams from a DC, high-voltage, GaAs photoemission gun
… photoemission gun and used it to measure the rms transverse emittance and rms momentum spread of the highly-charged, short-duration electron bunches it generates. We report these measurements as functions of microbunch charge for different beam radii, pulse lengths, and voltages/field gradients at …
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Electron Beam Diagnostic at the ELBE Free Electron Laser
… - Chapter #2 describes measurements of the transverse emittance we did at ELBE including an explanation of the experimental methods and the measurement error analysis. The transverse emittance was measured with the multislit method in the injector where the beam is space charge dominated. …
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Towards a free-electron laser driven by a laser wakefield accelerator
… spreads of less than 1% imply a normalised transverse emittance of less than 1 μ mm mrad, showing that these beams are suitable for driving an FEL. Efficient electron beam transport through an undulator (100 periods, period = 15 mm) is demonstrated implying an estimated source diameter of …
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Inverse Compton Light Source: A Compact Design Proposal
… SRF reentrant gun allows for an extremely small transverse emittance, increasing the brilliance of the resulting X-ray source. In order to achieve sufficiently small emittances, optimization was done regarding both the geometry of the gun and the initial electron bunch distribution produced off …
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TRANSVERSE CHARACTERIZATION AND CONTROL OF BEAMS WITH SPACE CHARGE
The characterization of the transverse phase space of beams is a fundamental requirement for particle accelerators. As accelerators shift toward higher intensity beam regimes, the transverse dynamics of beams becomes more influenced by interparticle forces known as the space charge forces. …
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Radiographic applications and control of TNSA proton beams
… ion beam has unique properties such as low transverse emittance, short pulse duration, high particle flux, large beam divergence and a broad energy spectrum. For applications, some of these properties are highly desirable and better than those which can be achieved with conventional …
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Coherence Control and Measurement at the CLS Using X-ray Interferometry
… light sources significantly reduce the transverse beam size, posing challenges for beam monitoring due to diffraction effects at lower energies and technical limitations at higher energies. This work demonstrates that X‐ray interferometry can overcome diffraction limits by measuring the …