The energy upgrade of the SPARC photo-injector from 160 to more than 260 MeV will be done by replacing a low gradient 3m S-Band structure with two 1.4m high gradient C-band structures. The structures are travelling wave, constant impedance sections, have symmetric waveguide input couplers and have been optimized to work with a SLED RF input pulse. A prototype with a reduced number of cells has been fabricated and tested at high power in KEK (Japan) giving very good performances in terms of breakdown rates (≈ 10-6 bpp /m) at high accelerating gradient (>50 MV/m). The paper illustrates the design criteria of the structures, the fabrication procedure and the high power RF test results. Copyright © 2011 by IPAC'11/EPS-AG.
Design, fabrication and high power RF test of a C-band accelerating structure for feasibility study of the SPARC photo-injector energy upgrade / Mostacci, Andrea; Palumbo, Luigi; S., Persichelli. - STAMPA. - (2011), pp. 89-91. (Intervento presentato al convegno 2nd International Particle Accelerator Conference, IPAC 2011 tenutosi a Kursaal, San Sebastian nel 4 September 2011 through 9 September 2011).
Design, fabrication and high power RF test of a C-band accelerating structure for feasibility study of the SPARC photo-injector energy upgrade
MOSTACCI, Andrea;PALUMBO, Luigi;
2011
Abstract
The energy upgrade of the SPARC photo-injector from 160 to more than 260 MeV will be done by replacing a low gradient 3m S-Band structure with two 1.4m high gradient C-band structures. The structures are travelling wave, constant impedance sections, have symmetric waveguide input couplers and have been optimized to work with a SLED RF input pulse. A prototype with a reduced number of cells has been fabricated and tested at high power in KEK (Japan) giving very good performances in terms of breakdown rates (≈ 10-6 bpp /m) at high accelerating gradient (>50 MV/m). The paper illustrates the design criteria of the structures, the fabrication procedure and the high power RF test results. Copyright © 2011 by IPAC'11/EPS-AG.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
