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Ideas for a Future PEP-X Light Source

Description: SLAC is developing a long-range plan to transfer the evolving scientific programs at SSRL from the SPEAR3 light source to a much higher performing synchrotron source -- PEP-X -- a new storage ring that would occupy the existing PEP-II tunnel and support two experimental halls, each containing 16 x-ray beam lines. Operating at 4.5 GeV and 1.5 A with a horizontal emittance of 0.14 nm-rad, reached using 90 m of damping wigglers, PEP-X would have an order of magnitude higher average brightness and … more
Date: November 2, 2011
Creator: Hettel, R.O.; Bane, K.L.F.; Bentson, L.D.; Bertsche, Kirk J.; Brennan, S.M.; Cai, Y. et al.
Partner: UNT Libraries Government Documents Department
open access

Transverse Single Bunch Instability in PEP-X

Description: A proposed high-brightness synchrotron light source (PEP-X) is under design at SLAC. The 4.5- GeV PEP-X storage ring has four theoretical minimum emittance (TME) cells to achieve the very low emittance and two double-bend achromat (DBA) cells to provide spaces for IDs. Damping wigglers will be installed in zero-dispersion straights to reduce the emittance below 0.1nm. In this paper, we present a preliminary estimation of the threshold of the transverse mode coupling instability (TMCI). Three ap… more
Date: June 2, 2009
Creator: Wang, L. & Stupakov, G.
Partner: UNT Libraries Government Documents Department
open access

Effects of Beam Filling Pattern on Beam Ion Instability and Beam Loading In PEP-X

Description: A proposed high-brightness synchrotron light source (PEP-X) is under design at SLAC. The 4.5-GeV PEP-X storage ring has four theoretical minimum emittance (TME) cells to achieve the very low emittance and two double-bend achromat (DBA) cells to provide spaces for IDs. Damping wigglers will be installed in zero-dispersion straights to reduce the emittance below 0.1 nm. Ion induced beam instability is one critical issue due to its ultra small emittance. Third harmonic cavity can be used to length… more
Date: June 2, 2009
Creator: Wang, L.
Partner: UNT Libraries Government Documents Department
open access

Physics Design of the ETA-II/Snowtron Double Pulse Target Experiment

Description: We have modified the single pulse target experimental facility[1] on the Experimental Test Accelerator II (ETAII) to perform the double pulse target experiments to validate the DARHT-II[2, 3] multi-pulse target concept. The 1.15 MeV, 2 kA Snowtron injector will provide the first electron pulse. The 6 MeV, 2 kA ETA-II beam will be used as the probe beam. Our modeling indicates that the ETA-II/Snowtron experiment is a reasonable scaling experiment.
Date: August 2, 2000
Creator: Chen, Y. J.; Ho, D. D. M.; Mccarrick, J. F.; Paul, A. C.; Sampayan, S.; Wang, L. F. et al.
Partner: UNT Libraries Government Documents Department
open access

Development of a Compact Radiography Accelerator Using Dielectric Wall Accelerator Technology

Description: We are developing an inexpensive compact accelerator system primarily intended for pulsed radiography. Design characteristics are an 8 MeV endpoint energy, 2 kA beam current, a cell gradient of approximately 3 MV/m (for an overall accelerator length is 2-3 m), and <$1/Volt capital costs. Such designs have been made possible with the development of high specific energy dielectrics (>10J/cm{sup 3}), specialized transmission line designs and multi-gap laser triggered low jitter (<1 ns) ga… more
Date: June 2, 2005
Creator: Sampayan, S.; Caporaso, G.; Chen, Y.; Hawkins, S.; Holmes, C.; Krogh, M. et al.
Partner: UNT Libraries Government Documents Department
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