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EpiméthéeLatest addition : 1 July 2020.
Épiméthée is a 3 MV single-ended electrostatic accelerator (3-UH-2 Pelletron, National Electrostatics Corp.) equipped with an electron cyclotron resonance (ECR) source (Pantechnik, Nanogan type) able to provide highly damaging beams with large energies and ranges, and also gases: hydrogen, oxygen, noble gases. The ECR source produces high charge states of a variety of ion species, which in combination with the 3 MV acceleration potential can produce ion beams with energies as high as 36 MeV. The source is equipped with four bottles for such gases as O2, He, Ar, Xe, CH4 and two cartridges of volatile organometallic compounds such as ferrocene and W(CO)6 for producing Fe and W ions. Maximal current at target is for example 150 µA for protons and He+, 12.5 µA for Fe5+ to 80 nA for Fe10+, 5.5 µA for W4+ to 2.5 µA for W12+. Metal ions are produced by the MIVOC process. Fe8+ up to 24 MeV and W12+ up to 36 MeV are classically used to produce high damage levels up to 2 – 3 µm range with damage rate typically over a dozen dpa/h at peak.
3 MV accelerator Epiméthée
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