High brightness injector studies on IBEX
RADLAC II is a high current linear induction accelerator for electrons. The beam is produced in a field-immersed foilless diode injector. We report the first time-resolved characterization of similar high-brightness immersed diode source using a time-gated, 2-D x-ray imaging technique. The experiments were performed on the 4-MeV IBEX accelerator and produced currents exceeding 40 kA in a 6-mm radius, thin annular beam with a measured thermal transverse velocity v/sub /perpendicular// = ..beta../sub /perpendicular//c /approximately/ 0.1c. For currents of 30 kA, even brighter beams with ..beta../sub /perpendicular// = 0.07 were obtained. In all cases, the measured parameters were consistent with 2-D PIC simulations. The experimental results will be discussed and compared to theory and simulations. 7 refs., 5 figs., 1 tab.
- Research Organization:
- Sandia National Labs., Albuquerque, NM (USA)
- DOE Contract Number:
- AC04-76DP00789
- OSTI ID:
- 6747029
- Report Number(s):
- SAND-88-2616C; CONF-8809149-23; ON: DE89001822
- Country of Publication:
- United States
- Language:
- English
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