Your Search Results

Use this resource - and many more! - in your textbook!

AcademicPub holds over eight million pieces of educational content for you to mix-and-match your way.

Experience the freedom of customizing your course pack with AcademicPub!
Not an educator but still interested in using this content? No problem! Visit our provider's page to contact the publisher and get permission directly.

SPEAR III-a brighter source at SSRL

By: Rabedeau, T.; Safranek, J.; Nosochkov, Y.; Limborg, C.; Hofmann, A.; Nuhn, H.-D.; Garren, A.; Davies-White, W.; Cornacchia, M.; Corbett, J.; Brennan, S.; Boyce, R.; Hettel, R.; Wiedemann, H.;

1997 / IEEE / 0-7803-4376-X


This item was taken from the IEEE Conference ' SPEAR III-a brighter source at SSRL ' By replacing the magnets and vacuum chamber for the 3 GeV SPEAR II storage ring, the natural emittance of the machine can be reduced from 130 to 18 nm-rad and the stored current can be raised from 100 to 200 mA with a 50 h lifetime. This configuration increases focused photon flux for insertion device beamlines by an order of magnitude and the photon brightness for future undulators would exceed 10/sup 18/ at 5 keV. Due to a higher critical energy, the photon flux in the 20 keV range for bending magnet beamlines increases by more than two orders of magnitude. We present preliminary SPEAR III design study results and plans to implement the facility upgrade with minimal downtime for SSRL users.