Real-Time Transverse Emittance and Phase-Space Monitor
A real-time multislit [1] transverse-emittance monitor has been developed for diagnosing the space-charge-dominated beam in the 10MeV injection line of the FEL at Thomas Jefferson National Accelerator Facility (formerly CEBAF). It gives emittance, Twiss parameters, and phase-space contours (without any symmetry assumptions) at the update rate of 1Hz. It reduces measurement noise in real-time, and incorporates a special algorithm for constructing the phase-space matrix, which yields more accurate results by sweeping the beam across the slits. In this paper we will discuss issues relevant to the software design and implementation. Experimental results obtained from a 250keV photocathode gun will also be presented and compared with other methods and with PARMELA simulations.
- Research Organization:
- Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
- Sponsoring Organization:
- USDOE Office of Energy Research (ER) (US)
- DOE Contract Number:
- AC05-84ER40150
- OSTI ID:
- 776932
- Report Number(s):
- JLAB-ACC-97-42; DOE/ER/40150-1821; TRN: US0101772
- Journal Information:
- Nuclear Instruments and Methods in Physics Research Section A, Vol. 407 (1-3) (1998) pp. 343-349, Vol. 407; Other Information: Submitted to Nuclear Instruments and Methods in Physics Research Section A, Vol. 407 (1-3) (1998) pp. 343-349; PBD: 1 Jan 1998
- Country of Publication:
- United States
- Language:
- English
Similar Records
An emittance measurement system for a wide range of bunch charges
Real-time transverse emittance diagnostics