Abstract

A linear accelerator (linac) for single charged (positive and negative) ions of the four various Pt isotopes has been proposed. Eight beams of different charges and masses of ions are accelerated in parallel RFQ channels to an energy of 100 MeV. The beams are then brought together by a system of alternating gradient magnets for a 180° bending and matching of the beams. The main channel that accelerates all the beams together consists of three stages. The first stage (until 600 MeV) is a Wideroe structure, followed by two consecutive Alvarex channels (2.5 GeV and 10 GeV) that have different radio frequencies. The characteristics of the output beam for each kind of ions are as follows: average pulse current, 130 mA; horizontal emittance, 0.67π cm mrad; vertical emittance, 0.47π cm mrad; momentum spread, ±07%, bunch length, 3.6 cm; spacing between bunches of each kind, 15.3 m.

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