A linear radiofrequency ion trap for accumulation, bunching, and emittance improvement of radioactive ion beams

A linear radiofrequency ion trap for accumulation, bunching, and emittance improvement of radioactive ion beams

An ion beam cooler and buncher has been developed for the manipulation of radioactive ion beams. The gas-filled linear radiofrequency ion trap system is installed at the Penning trap mass spectrometer ISOLTRAP at ISOLDE/CERN. Its purpose is to accumulate the 60-keV continuous ISOLDE ion beam with hi...

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Veröffentlicht in:Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment Accelerators, spectrometers, detectors and associated equipment, 2001-08, Vol.469 (2), p.254-275
Hauptverfasser: Herfurth, F, Dilling, J, Kellerbauer, A, Bollen, G, Henry, S, Kluge, H.-J, Lamour, E, Lunney, D, Moore, R.B, Scheidenberger, C, Schwarz, S, Sikler, G, Szerypo, J
Format: Artikel
Sprache:eng
Schlagworte:
Instrumentation and Detectors
Ion buncher
Ion cooling
Ion guide
Ion trap
On-line mass spectrometry
Physics
Radioactive ion beams
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Beschreibung
Zusammenfassung:An ion beam cooler and buncher has been developed for the manipulation of radioactive ion beams. The gas-filled linear radiofrequency ion trap system is installed at the Penning trap mass spectrometer ISOLTRAP at ISOLDE/CERN. Its purpose is to accumulate the 60-keV continuous ISOLDE ion beam with high efficiency and to convert it into low-energy low-emittance ion pulses. The efficiency was found to exceed 10% in agreement with simulations. A more than 10-fold reduction of the ISOLDE beam emittance can be achieved. The system has been used successfully for first on-line experiments. Its principle, setup and performance will be discussed.
ISSN:0168-9002
1872-9576
DOI:10.1016/S0168-9002(01)00168-1