Spiral Line Recirculating Induction Accelerator (SLIA)

Vernon Bailey; Sidney Putnam; Michael Tiefenback; Hart Nishimoto; Alfred Mondelli; David Chernin; John Petillo

doi:10.1117/12.951826

25 July 1989 Spiral Line Recirculating Induction Accelerator (SLIA)

Vernon Bailey, Sidney Putnam, Michael Tiefenback, Hart Nishimoto, Alfred Mondelli, David Chernin, John Petillo

Proceedings Volume 1061, Microwave and Particle Beam Sources and Directed Energy Concepts; (1989) https://doi.org/10.1117/12.951826
Event: OE/LASE '89, 1989, Los Angeles, CA, United States

Abstract

The spiral line recirculating induction accelerator (SLIA) is an open-ended spiral configuration in which the electron beam recirculates in independent transport lines (< 20) passing through a common induction accelerating section with high gain/ pass (~ 10 MeV). A toroidal (axial in the straight sections) field threads the transport lines for space charge confinement and suppression of instabilities. A strong focussing ℓ = 2 stellarator field is used in the bends to provide improved tolerance to field errors and energy mismatches at lower energies. Experimental and theoretical programs are underway to investigate key physics and design issues for SLIA. A beam transport and 180° beam bending experiment which uses a 1 MeV, 1 kA, 100 ns beam is investigating control of emittance growth and energy bandwidth of the bend. A full scale prototype accelerating test cell is(being built to measure the effective impedance of the cell, magnetization current for the ferrite, effective impedance of the ferrite and the interaction of the cell, beam, and power supply. The programs are intended to provide the information required for scaling to a multi-pass induction acceleration experiment to study the beam breakup instability and complete a proof-of-concept demonstration.

Citation Download Citation

Vernon Bailey, Sidney Putnam, Michael Tiefenback, Hart Nishimoto, Alfred Mondelli, David Chernin, and John Petillo "Spiral Line Recirculating Induction Accelerator (SLIA)", Proc. SPIE 1061, Microwave and Particle Beam Sources and Directed Energy Concepts, (25 July 1989); https://doi.org/10.1117/12.951826

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