SLAB symmetric dielectric micron scale structures for high gradient electron acceleration.

Conference · Sat Jun 12 00:00:00 EDT 1999

OSTI ID:11852

Rosenzweig, J B; Schoessow, P V

A class of planar microstructure is proposed which provide high accelerating gradients when excited by an infrared laser pulse. These structures consist of parallel dielectric slabs separated by a vacuum gap; the dielectric or the outer surface coating are spatially modulated at the laser wavelength along the beam direction so as to support a standing wave accelerating field. We have developed numerical and analytic models of the accelerating mode fields in the structure. We show an optimized coupling scheme such that this mode is excited resonantly with a large quality factor. The status of planned experiments on fabricating and measuring these planar structures will be described.

• Research Organization: Argonne National Lab., IL (US)
• Sponsoring Organization: US Department of Energy (US)
• DOE Contract Number: W-31109-ENG-38
• OSTI ID: 11852
• Report Number(s): ANL-HEP-CP-99-65; TRN: AH200118%%301
• Resource Relation: Conference: 1999 Particle Accelerator Conference, New York, NY (US), 03/29/1999--04/02/1999; Other Information: PBD: 12 Jun 1999
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ACCELERATION
ACCELERATORS
DIELECTRIC MATERIALS
ELECTRONS
LASERS
MICROSTRUCTURE
QUALITY FACTOR
STANDING WAVES
SURFACE COATING
WAVELENGTHS