Abstract
This paper reports a new method of measuring the bunch-by-bunch energy profile of a linear accelerator (linac) electron beam, using a dual-sweep streak camera in the storage ring. This method records the evolution of the time profile in the storage ring following injection. A high-resolution linac beam energy profile is reconstructed from the time profile measured at one-quarter of a synchrotron oscillation period following injection. Conversion between the time profile and energy profile is based on results from a longitudinal phase space tracking simulation. By separating the streak camera images of the different bunches, a bunch-by-bunch energy profile can also be measured.
Highlights
Recent progress in the performance of electron linear accelerators has increased the demand for better beam diagnostics to improve performance in daily operations
In a synchrotron radiation storage ring, for instance, accurate information on the linac beam used for top-up injection is absolutely necessary because beam excursions in both the transverse and longitudinal directions must be minimized
New linac beam diagnostics will improve our knowledge of beam dynamics, especially in the context of fast, bunch-by-bunch diagnostics since information on beam loading and the bunching process is provided
Summary
Recent progress in the performance of electron linear accelerators (linac) has increased the demand for better beam diagnostics to improve performance in daily operations. The most common one uses a screen monitor or wire scanner in a dispersion section of the beam transport line This method is both easy and useful, it has poor time resolution and the contribution from transverse oscillation must be corrected for. A time profile includes information such as the longitudinal dipole mismatch, quadrupole bucket mismatch, and nonlinear synchrotron tune This information has been used in beam tuning and the measurement of storage ring parameters. The present article shows that high-resolution time profile diagnostics can be obtained for the injected beam in the storage ring, and for the linac beam itself. B explain some small effects on the measurement that can be safely neglected
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: Physical Review Special Topics - Accelerators and Beams
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
