التفاصيل البيبلوغرافية
| العنوان: |
Coupler Design for the LCLS Injector S-Band Structures |
| المؤلفون: |
Li, Z., Bentson, L. D., Chan, J., Dowell, D. H., Limborg-Deprey, C., Schmerge, J. F., Schultz, D. C., Xiao, L. |
| المساهمون: |
United States. Department of Energy. |
| المصدر: |
Prepared for Particle Accelerator Conference (PAC 05), Knoxville, Tennessee, 16-20 May 2005 |
| بيانات النشر: |
Stanford Linear Accelerator Center |
| سنة النشر: |
2006 |
| المجموعة: |
University of North Texas: UNT Digital Library |
| مصطلحات موضوعية: |
43 Particle Accelerators, Space Charge, Asymmetry, Accelerators,Accphy, Linear Accelerators, Stanford Linear Accelerator Center Accelerators,Accphy, Accelerators, Multipoles, Design |
| الوصف: |
The LCLS injector is required to provide a 1-nC, 10-ps bunch with a normalized rms transverse projected emittance of less than 1 micron. The LCLS beam is generated and accelerated in a 1.6-cell S-band RF gun at 120 MV/m up to 6 MeV. The gun is followed by two SLAC 3-m S-band accelerator structures to further accelerate the beam to 135 MeV which moves the beam out of the space-charge dominated regime. In the SLAC S-band structures, the RF power feed is through a single coupling-hole (single-feed coupler) which results in a field asymmetry. The time dependent multipole fields in the coupler induce a transverse kick along the bunch and cause the emittance to increase above the LCLS specification. To meet the stringent emittance requirements for the injector, the single-feed couplers will be replaced by a dual-feed racetrack design to minimize the multipole field effects. We will present detailed studies of the multipole fields in the SLAC linac RF coupler and the improvements with the dual-feed ractrack design using the parallel finite element S-parameter solver S3P. |
| نوع الوثيقة: |
article in journal/newspaper |
| وصف الملف: |
3 pages; Text |
| اللغة: |
English |
| Relation: |
rep-no: SLAC-PUB-11728; grantno: AC02-76SF00515; osti: 877217; https://digital.library.unt.edu/ark:/67531/metadc881157/; ark: ark:/67531/metadc881157 |
| الاتاحة: |
https://digital.library.unt.edu/ark:/67531/metadc881157/ |
| رقم الانضمام: |
edsbas.6A8E7948 |
| قاعدة البيانات: |
BASE |