Experimental investigation of beam generation, acceleration, transport and extraction in the RADLAC-II pulsed transmission line linear accelerator

Conference · Wed Jan 01 04:00:00 EST 1986

OSTI ID:5718181

Mazarakis, M G; Leifeste, G T; Shope, S L; Frost, C A; Freeman, J R; Poukey, J W; Stygar, W A; Ekdahl, C A; Smith, D L; Johnson, D L

We have investigated the generation, acceleration, transport, and extraction of intense, high-voltage, relativistic electron beams with the RADLAC-II accelerator. A 40-kA, electron beam was produced by a foilless diode injector, which was immersed in, and accurately aligned with, the magnetic axis of a 17-kG solenoidal guide field. The solenoidal field guides the beam through the accelerator, which includes a number of post-accelerating gaps designed to provide radial force balance to suppress radial oscillations. Furthermore, the accelerating cavities have a very low Q and small transverse shunt impedance to suppress beam breakup instabilities. A 70% to 90% transport efficiency was observed, depending on the precision of the beam line alignment. Finally, the beam was extracted, without significant losses, and propagated into a magnetic field-free, air-filled region.

• Research Organization: Sandia National Labs., Albuquerque, NM (USA)
• DOE Contract Number: AC04-76DP00789
• OSTI ID: 5718181
• Report Number(s): SAND-86-1240C; CONF-8605143-1; ON: DE86011826
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
430100* -- Particle Accelerators-- Design
Development
& Operation
ACCELERATORS
ALIGNMENT
BEAM CURRENTS
BEAM EXTRACTION
BEAM INJECTION
BEAM TRANSPORT
BEAMS
CURRENTS
ELECTRON BEAMS
KILO AMP BEAM CURRENTS
LEPTON BEAMS
LINEAR ACCELERATORS
PARTICLE BEAMS
PERFORMANCE TESTING
TESTING