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The ions from the A1900 fragment separator will be stopped in a gas cell. Electrodes will provide an electric field gradient to guide the ions from the stopping volume through an exit nozzle into a radio-frequency quadrupole (RFQ) ion guide system.
The continuous ion beam will be transported into a linear RFQ ion trap, which acts as beam accumulator, cooler, and buncher. A test ion source will be used as an alternative ion beam delivery for beam transport tests and commissioning of the beam buncher and the Penning trap system in periods when radioactive beams are unavailable.
In order to be able to deliver ion bunches with variable energy (5-60 keV) to experiments further downstream, a pulsed drift tube will be installed after the RFQ beam buncher. An electrostatic switchyard and beam transport system will allow the ion pulses to be sent either to the Penning trap system or into one of the other beamlines.
A Penning trap system will be set up in a superconducting solenoid magnet with a field of 9.4 T. This high field strength will help to extend Penning trap mass measurements to isotopes with half-lives down to 10 ms, allowing the most exotic nuclides to be studied with high precision.