ALS-N-a candidate for a next-generation synchrotron light-source

We have begun an investigation of a next-generation light-source, and shown that a factor of 10-100 increase in photon brightness from undulators can be achieved in the soft X-ray energy range. Both the electron emittance and bunch length suffer significantly from the effects of IBS at a beam current of 400 mA. Though this caps the achievable beam brightness, there is a favourable increase in Touschek lifetime. The brightness from bend magnets is also increased, to the level that it starts to become interesting for soft X-ray microscopy. With specially tailored optics at the bend magnet sources, the photon brightness could be increased by another order of magnitude