DEVELOPMENT AND CONSTRUCTION OF THE AL'FA IRRADIATION COMPLEX FOR PRODUCING TRACK MEMBRANES

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Abstract

The Al'fa irradiation complex has been developed and built at the Joint Institute of Nuclear Research. The purpose of this complex is to irradiate polymer films used in the production of track memebranes. The complex contains an isochronous cyclotron with external ion injection, a system for extracting and transporting accelerated ions, and an irradiation setup for the initial material – a polyethylene film. The Al'fa irradiation complex can produce track membranes from polyethyleneterephtalate (lavsan) up to 25 μm thick and up to 40 cm wide.

The Al'fa irradiation complex began operating in August 2002. Argon ions with a charge of +8 were accelerated up to 2.4 MeV/nucleon. The intensity of the extracted beam was 200 nA. The extraction coefficient was ∼50%.

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