A minicyclotron for a scanning proton muprobe

J.A. van der Heide, R.J.L.J. de Regt, W.A.M. Gudden, P. Magendans, H.L. Hagedoorn, P. H.A. Mutsaers, A.V.G. Mangnus, A.J.R. Aendenroomer, L.C. de Folter, M. J.A. de Voigt

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3 Citations (Scopus)

Abstract

The isochronous low-energy cyclotron ILEC is a small AVF-machine which has keen built for acceleration of protons to a fixed energy of 3 MeV. The total weight of the machine is 3 ton and its power consumption is about 20 kW. Apart from providing an experimental facility for machine research, a main objective of this accelerator project is to produce an intense ion beam with low energy spread for element analysis. For this purpose ILEC is equipped with a double 50° dee system for 2nd harmonic excitation at a frequency of 43.5 MHz and a high voltage amplitude of about 30 kV. To attain the requirement of low energy spread also a double 30° system for 6th harmonic flat topping has been constructed and will be installed soon. During the last year the Eindhoven scanning proton muprobe has been updated. The aim of the new design is to obtain a probe diameter of a few μm with a beam current of at least 100 pA. The main application will be the determination of trace elements in biological and medical samples at cellular and subcellular level. In combination with the detection of scattered particles, applications in the field of mu-electronics and materials science are foreseen.

Original languageEnglish
Pages (from-to)336-341
Number of pages6
JournalNuclear Instruments and Methods in Physics Research. Section B: Beam Interactions with Materials and Atoms
Volume64
Issue number1-4
DOIs
Publication statusPublished - 2 Feb 1992

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