Speakers
Mr
Jean-Maurice MERCIER
(ESRF)Dr
Jörn JACOB
(ESRF)
Description
A ten year upgrade programme has been set up at the ESRF to enhance its scientific capabilities for new research by renewing X-ray beam lines, their instrumentation and the X-ray source. As part of this programme, the photon flux and brilliance of the source will be increased by means of longer insertion device straight sections, a higher electron beam current, a reduced vertical emittance and the implementation of top up mode for few bunch fillings. A higher photon beam stability and an enhanced durability of the accelerator complex are further objectives of the source upgrade.
New HOM damped RF cavities are being developed to replace the existing five-cell cavities. They will allow to increase the stored current from 200 to 300 mA without active stabilization of HOM driven longitudinal multibunch instabilities. In order to sustain the increased RF power of about 2 MW and to maintain or even improve the operation reliability, also the RF transmitters will be refurbished. Different solutions have been investigated, including additional higher power klystron transmitters, new medium power klystrons, IOTs and solid state amplifiers. The best choice for the ESRF upgrade will be discussed at the workshop.
Author
Dr
Jörn JACOB
(ESRF)
Co-author
Mr
Jean-Maurice MERCIER
(ESRF)
