Electron Bunch Compression Monitors for Short Bunches - Commissioning Results from SwissFEL

Autor: Frei, Franziska, Ischebeck, Rasmus
Jazyk: angličtina
Rok vydání: 2019
Předmět:
DOI: 10.18429/jacow-ibic2019-wepp026
Popis: In SwissFEL, by using three magnetic chicanes, 3ps long electron bunches can by compressed by a factor of more than 100 down to a few fs in order to generate ultra short X-ray pulses. In order to meet the envisaged beam performance, noninvasive longitudinal diagnostic after each compression stage is essential. These bunch compression monitors measure relative bunch length changes on a shot-to-shot basis by detecting coherent edge, synchrotron or diffraction radiation emitted by the electron bunches. While after the first two magnetic chicanes, a wide spectral part is integrated on a single broadband detector, an infrared spectrometer installed after the third magnetic chicane is providing more detailed information. Here, we will mainly report on commissioning results of the third bunch compression monitor for electron bunches of a few fs.
Proceedings of the 8th International Beam Instrumentation Conference, IBIC2019, Malmö, Sweden
Databáze: OpenAIRE