Cyclotron (E072)

Negative ion 32 MeV cyclotron MC32NI at dkfz for the production of radionuclides (length x width x height = 4.0 m x 3.5 m x 2.2 m; weight = 60 t).

A Negative-Ion-Cyclotron type MC32NI was taken over from a firm Scanditronix (in Uppsala / Sweden) as a successor of AEG – Compact Cyclotron and became operative since 1991. It produces short-lived radioisotopes which are further used in nuclear medicine functional diagnostics including in Positron Emission Tomography (PET). Ion currents and energies are so calibrated that practically every relevant nuclide can be produced for radiological and biological research.

The isochronous cyclotron operates with a fixed Magnetic field (mean 1.59 T) and a fixed frequency (about 24 MHz). Negative Hydrogen or Deuterium ions are accelerated from a dual ion source of Penning-type up to energy of 32 and 16 MeV respectively and after stripping on a carbon foil leave the accelerator as Protons and Deuterons. An external Ion current of at least 60µA can be generated. Installation of a second foil- extractor for further extraction of the Ion beam is planned for future. The energy of the particles can be varied by varying the radial position of the extraction foil between 50 and 100% of the final energy.

Design Data:

Cyclotron Hall Dimension: 3.4m x 4.0m x 2.35m
Magnet Dimension: 2.98 m x 1.35 m x 3.06 m
Pole Diameter: 1.35m
Weight: ≈ 60 tons
Electrical Power Consumption: 185 kVA

The cyclotron facility also provides possibilities for external radiation experimenters to perform physical, biological, radiochemical or technical testing upon consultation.

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