Real-time transverse emittance diagnostics

Conference · Sat Aug 01 04:00:00 EDT 1998

OSTI ID:756026

Piot, P; Krafft, G A; Li, R; Song, J

With the increasing interest in high-brightness beams and the recent advances in photoemission guns capable of producing such high-charge, low-emittance beams, measuring transverse emittance has become a primary concern, especially in driver accelerators for free-electron lasers (FELs) where a degradation of this parameter could result in significant deterioration of the FEL gain. Hence, frequent and fast measurement are needed, particularly when detailed parametric studies are required. Commonly used methods include optical transition radiation (OTR) based methods and trace space sampling methods. The authors will discuss these methods and provide motivation for their method of on-line emittance measurement in the Jefferson Lab FEL.

• Research Organization: Thomas Jefferson National Accelerator Facility, Newport News, VA (US)
• Sponsoring Organization: USDOE Office of Energy Research (ER) (US)
• DOE Contract Number: AC05-84ER40150
• OSTI ID: 756026
• Report Number(s): DOE/ER/40150-1520; JLAB-ACT-00-03
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
43 PARTICLE ACCELERATORS
BEAM EMITTANCE
BEAM MONITORS
CEBAF ACCELERATOR
FREE ELECTRON LASERS
MEASURING METHODS
ON-LINE MEASUREMENT SYSTEMS